24AA00/24LC00/24C00 24AA014/24LC014 24AA02/24LC02B 24AA024/24LC024 24AA04/24LC04B 24AA16/24LC16B 24AA64/24LC64 24AA256/24LC256/24FC256 24AA01/24LC01B 24C01C 24C02C 24AA025/24LC025 24AA08/24LC08B 24AA32A/24LC32A 24AA128/24LC128/24FC128 24AA512/24LC512/24FC512 I2CTM Serial EEPROM Family Data Sheet Features: Description: * 128-bit through 512 Kbit devices * Single-supply with operation down to 1.8V for 24AAXX devices * Low-power CMOS technology: - 1 mA active current typical - 1 A standby current typical (I-temp) * 2-wire serial interface bus, I2CTM compatible * Schmitt Trigger inputs for noise suppression * Output slope control to eliminate ground bounce * 100 kHz (1.8V) and 400 kHz ( 2.5V) compatibility * 1 MHz for 24FCXX products * Self-timed write cycle (including auto-erase) * Page write buffer * Hardware write-protect available on most devices * Factory programming (QTP) available * ESD protection > 4,000V * 1 million erase/write cycles * Data retention > 200 years * 8-lead PDIP, SOIC, TSSOP and MSOP packages * 5-lead SOT-23 package (most 1-16 Kbit devices) * 8-lead 2x3mm and 5x6mm DFN packages available * Available for extended temperature ranges: - Industrial (I): -40C to +85C - Automotive (E): -40C to +125C The Microchip Technology Inc. 24CXX, 24LCXX, 24AAXX and 24FCXX (24XX*) devices are a family of 128-bit through 512 Kbit Electrically Erased PROMs. The devices are organized in blocks of x8-bit memory with 2-wire serial interfaces. Low voltage design permits operation down to 1.8V (for 24AAXX devices), with standby and active currents of only 1 A and 1 mA, respectively. Devices 1 Kbit and larger have page write capability. Parts having functional address lines allow connection of up to 8 devices on the same bus. The 24XX family is available in the standard 8-pin PDIP, surface mount SOIC, TSSOP and MSOP packages. Most 128-bit through 16 Kbit devices are also available in the 5-lead SOT-23 package. DFN packages (2x3mm or 5x6mm) are also available. All packages are available in a Pb-free (Matte Tin) finish. Package Types(1) TSSOP/MSOP(2) PDIP/SOIC A0 1 8 VCC A0 1 8 VCC A1 2 7 WP(3) A1 2 7 WP(3) A2 3 6 SCL A2 3 6 SCL VSS 4 5 SDA VSS 4 5 SDA SOT-23-5 (all except 24XX00) SCL VSS SDA 1 5 WP 2 3 4 VCC DFN A0 1 8 VCC A1 2 7 WP(3) A2 3 6 SCL VSS 4 5 SDA SOT-23-5 (24XX00) TSSOP A0 A1 NC NC NC A2 VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC WP NC NC NC SCL SDA SCL 1 VSS 2 SDA 3 5 VCC 4 NC Note 1: Pins A0, A1, A2 and WP are not used by some devices (no internal connections). See Table 1-1, Device Selection Table, for details. 2: Pins A0 and A1 are no-connects for the 24XX128 and 24XX256 MSOP devices. 3: Pin 7 is "not used" for 24XX00, 24XX025 and 24C01C. *24XX is used in this document as a generic part number for 24 series devices in this data sheet. 24XX64, for example, represents all voltages of the 64 Kbit device. (c) 2005 Microchip Technology Inc. DS21930A-page 1 24AAXX/24LCXX/24FCXX TABLE 1-1: DEVICE SELECTION TABLE VCC Range Part Number Max Clock Frequency Page Size WriteProtect Scheme Functional Address Pins Temp Range Packages(5) 128-bit devices 1.8-5.5V 400 kHz(1) 24LC00 2.5-5.5V 400 kHz (1) 24C00 4.5-5.5V 400 kHz 24AA01 1.8-5.5V 400 kHz (2) 24LC01B 2.5-5.5V 400 kHz 24AA00 C, I -- None None P, SN, ST, OT, MC C, I C, I, E 1 Kb devices 24AA014 1.8-5.5V 400 kHz 24LC014 2.5-5.5V 400 kHz 24C01C 8 bytes Entire Array None 16 bytes Entire Array A0, A1, A2 16 bytes None A0, A1, A2 8 bytes Entire Array None 16 bytes Entire Array A0, A1, A2 16 bytes None A0, A1, A2 16 bytes Upper Half of Array A0, A1, A2 16 bytes Entire Array None (2) 4.5V-5.5V 400 kHz I P, SN, ST, MS, OT, MC I, E I P, SN, ST, MS, MC I C, I, E P, SN, ST, MC 2 Kb devices 24AA02 1.8-5.5V 400 kHz (2) 24LC02B 2.5-5.5V 400 kHz 24AA024 1.8-5.5V 400 kHz(2) 24LC024 2.5-5.5V 400 kHz 24AA025 1.8-5.5V 400 kHz(2) 24LC025 2.5-5.5V 400 kHz 24C02C 4.5-5.5V 400 kHz 24AA04 1.8-5.5V 400 kHz (2) 24LC04B 2.5-5.5V 400 kHz 24AA08 1.8-5.5V 400 kHz (2) 24LC08B 2.5-5.5V 400 kHz 24AA16 1.8-5.5V 400 kHz (2) 24LC16B 2.5-5.5V 400 kHz 24AA32A 1.8-5.5V 400 kHz (2) 24LC32A 2.5-5.5V 400 kHz 24AA64 1.8-5.5V 400 kHz (2) 24LC64 2.5-5.5V 400 kHz I P, SN, ST, MS, OT, MC I, E I P, SN, ST, MS, MC I I P, SN, ST,MS, MC I C, I, E P, SN, ST, MC 4 Kb devices I P, SN, ST, MS, OT, MC I, E 8 Kb devices 16 bytes Entire Array None 16 bytes Entire Array None 32 bytes Entire Array A0, A1, A2 32 bytes Entire Array A0, A1, A2 I P, SN, ST, MS, OT, MC I, E 16 Kb devices I P, SN, ST, MS, OT, MC I, E 32 Kb devices I P, SN, SM, ST, MS, MC I, E 64 Kb devices I P, SN, SM, ST, MS, MC I, E Note 1: 100 kHz for VCC <4.5V. 2: 100 kHz for VCC <2.5V. 3: 400 kHz for VCC <2.5V 4: Pins A0 and A1 are no-connects for the 24XX128 and 24XX256 in the MSOP package. 5: P = 8-PDIP, SN = 8-SOIC (150 mil JEDEC), ST = 8-TSSOP, OT = 5 or 6-SOT23, MC = 2x3mm DFN, MS = 8-MSOP, SM = 8-SOIC (200 mil EIAJ), MF = 5x6mm DFN, ST14 = 14-TSSOP. DS21930A-page 2 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX TABLE 1-1: DEVICE SELECTION TABLE (CONTINUED) VCC Range Max Clock Frequency 24AA128 1.8-5.5V 400 kHz (2) 24LC128 2.5-5.5V 400 kHz 24FC128 1.8-5.5V 1 MHz(3) 24AA256 1.8-5.5V 400 kHz (2) 24LC256 2.5-5.5V 400 kHz 24FC256 1.8-5.5V 1 MHz(3) 24AA512 1.8-5.5V 400 kHz (2) 24LC512 2.5-5.5V 400 kHz Part Number Page Size WriteProtect Scheme Functional Address Pins Temp Range Packages(5) I 64 bytes Entire Array A0, A1, A2(4) I, E P, SN, SM, ST, MS, MF, ST14 128 Kb devices I 256 Kb devices I 64 bytes Entire Array A0, A1, A2(4) I, E P, SN, SM, ST, MS, MF, ST14 I 512 Kb devices 24FC512 1.8-5.5V(3) 1 MHz I 128 bytes Entire Array A0, A1, A2 P, SM, MF, ST14 I, E I Note 1: 100 kHz for VCC <4.5V. 2: 100 kHz for VCC <2.5V. 3: 400 kHz for VCC <2.5V 4: Pins A0 and A1 are no-connects for the 24XX128 and 24XX256 in the MSOP package. 5: P = 8-PDIP, SN = 8-SOIC (150 mil JEDEC), ST = 8-TSSOP, OT = 5 or 6-SOT23, MC = 2x3mm DFN, MS = 8-MSOP, SM = 8-SOIC (200 mil EIAJ), MF = 5x6mm DFN, ST14 = 14-TSSOP. (c) 2005 Microchip Technology Inc. DS21930A-page 3 24AAXX/24LCXX/24FCXX 2.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings () VCC .............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V Storage temperature ...............................................................................................................................-65C to +150C Ambient temperature with power applied ................................................................................................-40C to +125C ESD protection on all pins ...................................................................................................................................................... 4 kV NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. TABLE 2-1: DC CHARACTERISTICS Electrical Characteristics: Commercial (C): VCC = +1.8V to 5.5V TA = 0C to +70C Industrial (I): VCC = +1.8V to 5.5V TA = -40C to +85C Automotive (E): VCC = +2.5V to 5.5V TA = -40C to 125C DC CHARACTERISTICS Param. No. Sym. Characteristic Min. Max. Units Conditions -- -- -- -- D1 -- A0, A1, A2, SCL, SDA and WP pins: D2 VIH High-level input voltage 0.7 VCC -- V -- D3 VIL Low-level input voltage -- 0.3 VCC 0.2 VCC V V VCC 2.5V VCC < 2.5V D4 VHYS Hysteresis of Schmitt Trigger inputs (SDA, SCL pins) 0.05 VCC -- V (Note 1) D5 VOL Low-level output voltage -- 0.40 V IOL = 3.0 mA @ VCC = 2.5V D6 ILI Input leakage current -- 1 A VIN = VSS or VCC D7 ILO Output leakage current -- 1 A VOUT = VSS or VCC D8 CIN, COUT Pin capacitance (all inputs/outputs) -- 10 pF VCC = 5.0V (Note 1) TA = 25C, FCLK = 1 MHz D9 ICC Read Operating current -- 400 A 1 mA 24XX128, 256, 512: VCC = 5.5V, SCL = 400 kHz All except 24XX128, 256, 512: VCC = 5.5V, SCL = 400 kHz -- 3 5 mA mA VCC = 5.5V, All except 24XX512 VCC = 5.5V, 24XX512 -- 1 A TA = -40C to +85C SCL = SDA = VCC = 5.5V A0, A1, A2, WP = VSS or VCC -- 5 A TA = -40C to 125C SCL = SDA = VCC = 5.5V A0, A1, A2, WP = VSS or VCC -- 50 A 24C01C and 24C02C only SCL = SDA = VCC = 5.5V A0, A1, A2, WP = VSS or VCC ICC Write D10 ICCS Standby current Note 1: This parameter is periodically sampled and not 100% tested. DS21930A-page 4 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX TABLE 2-2: AC CHARACTERISTICS - ALL EXCEPT 24XX00, 24C01C AND 24C02C Electrical Characteristics: Industrial (I): VCC = +1.8V to 5.5V TA = -40C to +85C Automotive (E): VCC = +2.5V to 5.5V TA = -40C to 125C AC CHARACTERISTICS Param. No. Sym. Characteristic Min. Max. Units Conditions 1 FCLK Clock frequency -- -- -- -- 100 400 400 1000 kHz 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 2 THIGH Clock high time 4000 600 600 500 -- -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 3 TLOW Clock low time 4700 1300 1300 500 -- -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 4 TR SDA and SCL rise time (Note 1) -- -- -- 1000 300 300 ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC 5.5V 24FCXXX 5 TF SDA and SCL fall time (Note 1) -- -- 300 100 ns All except 24FCXXX 1.8V VCC 5.5V 24FCXXX 6 THD:STA Start condition hold time 4000 600 600 250 -- -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 7 TSU:STA Start condition setup time 4700 600 600 250 -- -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 8 THD:DAT Data input hold time 0 -- ns (Note 2) 9 TSU:DAT Data input setup time 250 100 100 -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC 5.5V 24FCXXX 10 TSU:STO Stop condition setup time 4000 600 600 250 -- -- -- -- ns 1.8 V VCC < 2.5V 2.5 V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5 V VCC 5.5V 24FCXXX 11 TSU:WP WP setup time 4000 600 600 -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC 5.5V 24FCXXX 12 THD:WP WP hold time 4700 1300 1300 -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC 5.5V 24FCXXX Note 1: Not 100% tested. CB = total capacitance of one bus line in pF. 2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions. 3: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total EnduranceTM Model, which can be obtained from Microchip's web site: www.microchip.com. 4: 24FCXXX denotes the 24FC128, 24FC256 and 24FC512 devices. (c) 2005 Microchip Technology Inc. DS21930A-page 5 24AAXX/24LCXX/24FCXX TABLE 2-2: AC CHARACTERISTICS - ALL EXCEPT 24XX00, 24C01C AND 24C02C (CONTINUED) Electrical Characteristics: Industrial (I): VCC = +1.8V to 5.5V TA = -40C to +85C Automotive (E): VCC = +2.5V to 5.5V TA = -40C to 125C AC CHARACTERISTICS Param. No. Sym. Characteristic Min. Max. Units -- -- -- -- 3500 900 900 400 ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 4700 1300 1300 500 -- -- -- -- ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 1.8V VCC < 2.5V 24FCXXX 2.5V VCC 5.5V 24FCXXX 10 + 0.1CB 250 250 ns All except 24FCXXX (Note 1) 24FCXXX (Note 1) All except 24FCXXX (Note 1) 13 TAA Output valid from clock (Note 2) 14 TBUF Bus free time: Time the bus must be free before a new transmission can start 15 TOF Output fall time from VIH minimum to VIL maximum CB 100 pF 16 TSP Input filter spike suppression (SDA and SCL pins) -- 50 ns 17 TWC Write cycle time (byte or page) -- 5 ms 18 -- Endurance 1,000,000 -- Conditions cycles 25C (Note 3) Note 1: Not 100% tested. CB = total capacitance of one bus line in pF. 2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions. 3: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total EnduranceTM Model, which can be obtained from Microchip's web site: www.microchip.com. 4: 24FCXXX denotes the 24FC128, 24FC256 and 24FC512 devices. DS21930A-page 6 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX TABLE 2-3: AC CHARACTERISTICS - 24XX00, 24C01C AND 24C02C All Parameters apply across all recommended operating ranges unless otherwise noted Parameter Commercial (C): Industrial (I): Automotive (E): Symbol TA = 0C to +70C, VCC = 1.8V to 5.5V TA = -40C to +85C, VCC = 1.8V to 5.5V TA = -40C to +125C, VCC = 4.5V to 5.5V Min Max Units Conditions Clock frequency FCLK -- -- -- 100 100 400 kHz 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Clock high time THIGH 4000 4000 600 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Clock low time TLOW 4700 4700 1300 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V SDA and SCL rise time (Note 1) TR -- -- -- 1000 1000 300 ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V SDA and SCL fall time TF -- 300 ns (Note 1) Start condition hold time THD:STA 4000 4000 600 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Start condition setup time TSU:STA 4700 4700 600 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Data input hold time THD:DAT 0 -- ns (Note 2) Data input setup time TSU:DAT 250 250 100 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Stop condition setup time TSU:STO 4000 4000 600 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Output valid from clock (Note 2) TAA -- -- -- 3500 3500 900 ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V 4700 4700 1300 -- -- -- ns 4.5V Vcc 5.5V (E Temp range) 1.8V Vcc 4.5V 4.5V Vcc 5.5V Bus free time: Time the bus must TBUF be free before a new transmission can start Output fall time from VIH minimum to VIL maximum TOF 20+0.1 CB 250 ns (Note 1), CB 100 pF Input filter spike suppression (SDA and SCL pins) TSP -- 50 ns (Note 1) Write cycle time TWC -- 4 1.5 ms 24XX00 24C01C, 24C02C 1,000,000 -- cycles Endurance Note 1: 2: 3: (Note 3) Not 100% tested. CB = total capacitance of one bus line in pF. As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions. This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total EnduranceTM Model which can be obtained at www.microchip.com. (c) 2005 Microchip Technology Inc. DS21930A-page 7 24AAXX/24LCXX/24FCXX FIGURE 2-1: BUS TIMING DATA 5 SCL 7 SDA IN 3 4 D4 2 8 10 9 6 16 14 13 SDA OUT WP DS21930A-page 8 (protected) (unprotected) 11 12 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: Pin Name PIN FUNCTION TABLE 8-Pin 8-Pin PDIP and TSSOP and SOIC MSOP 5-Pin SOT-23 24XX00 5-Pin SOT-23 All except 24XX00 14-Pin TSSOP 8-Pin 5x6 DFN and 2x3 DFN Function A0 1 1(1) -- -- 1 1 User configurable Chip Select(3) A1 2 2(1) -- -- 2 2 User configurable Chip Select(3) A2 3 3 -- -- 6 3 User configurable Chip Select(3) VSS 4 4 2 2 7 4 Ground SDA 5 5 3 3 8 5 Serial Data SCL 6 6 1 1 9 6 Serial Clock (NC) -- -- 4 -- 3, 4, 5, 10, 11, 12 -- Not Connected WP 7(2) 7(2) -- 5 13 7 Write-Protect Input VCC 8 8 5 4 14 8 Power Supply Note 1: 2: 3: 3.1 Pins 1 and 2 are not connected for the 24XX128 and 24XX256 MSOP packages. Pin 7 is not used for 24XX00, 24XX025 and 24C01C. Pins A0, A1 and A2 are not used by some devices (no internal connections). See Table 1-1 for details. A0, A1, A2 Chip Address Inputs The A0, A1 and A2 pins are not used by the 24XX01 through 24XX16 devices. The A0, A1 and A2 inputs are used by the 24C01C, 24C02C, 24XX014, 24XX024, 24XX025 and the 24XX32 through 24XX512 for multiple device operations. The levels on these inputs are compared with the corresponding bits in the slave address. The chip is selected if the compare is true. For the 24XX128 and 24XX256 in the MSOP package only, pins A0 and A1 are not connected. Up to eight devices (two for the 24XX128 and 24XX256 MSOP package) may be connected to the same bus by using different Chip Select bit combinations. In most applications, the chip address inputs A0, A1 and A2 are hard-wired to logic `0' or logic `1'. For applications in which these pins are controlled by a microcontroller or other programmable device, the chip address pins must be driven to logic `0' or logic `1' before normal device operation can proceed. 3.2 3.3 Serial Clock (SCL) This input is used to synchronize the data transfer to and from the device. 3.4 Write-Protect (WP) This pin must be connected to either VSS or VCC. If tied to VSS, write operations are enabled. If tied to VCC, write operations are inhibited but read operations are not affected. See Table 1-1 for the write-protect scheme of each device. 3.5 Power Supply (VCC) A VCC threshold detect circuit is employed which disables the internal erase/write logic if VCC is below 1.5V at nominal conditions. For the 24C00, 24C01C and 24C02C devices, the erase/write logic is disabled below 3.8V at nominal conditions. Serial Data (SDA) This is a bidirectional pin used to transfer addresses and data into and out of the device. It is an open drain terminal. Therefore, the SDA bus requires a pull-up resistor to VCC (typical 10 k for 100 kHz, 2 k for 400 kHz and 1 MHz). For normal data transfer, SDA is allowed to change only during SCL low. Changes during SCL high are reserved for indicating the Start and Stop conditions. (c) 2005 Microchip Technology Inc. DS21930A-page 9 24AAXX/24LCXX/24FCXX 4.0 FUNCTIONAL DESCRIPTION Each 24XX device supports a bidirectional, 2-wire bus and data transmission protocol. A device that sends data onto the bus is defined as a transmitter, while a device receiving data is defined as a receiver. The bus has to be controlled by a master device which generates the Serial Clock (SCL), controls the bus access and generates the Start and Stop conditions, while the 24XX works as slave. Both master and slave can operate as transmitter or receiver, but the master device determines which mode is activated. Block Diagram A0*A1*A2* WP* I/O Control Logic HV Generator Memory Control Logic XDEC EEPROM Array Page Latches* I/O SCL YDEC SDA VCC VSS Sense Amp. R/W Control * A0, A1, A2, WP and page latches are not used by some devices. See Table 1-1, Device Selection Table, for details. DS21930A-page 10 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 5.0 BUS CHARACTERISTICS The following bus protocol has been defined: * Data transfer may be initiated only when the bus is not busy. * During data transfer, the data line must remain stable whenever the clock line is high. Changes in the data line while the clock line is high will be interpreted as a Start or Stop condition. Accordingly, the following bus conditions have been defined (Figure 5-1). 5.1 Bus Not Busy (A) Both data and clock lines remain high. 5.2 Start Data Transfer (B) A high-to-low transition of the SDA line while the clock (SCL) is high determines a Start condition. All commands must be preceded by a Start condition. 5.3 Stop Data Transfer (C) A low-to-high transition of the SDA line while the clock (SCL) is high determines a Stop condition. All operations must be ended with a Stop condition. 5.4 Data Valid (D) The state of the data line represents valid data when, after a Start condition, the data line is stable for the duration of the high period of the clock signal. The data on the line must be changed during the low period of the clock signal. There is one clock pulse per bit of data. Each data transfer is initiated with a Start condition and terminated with a Stop condition. The number of data bytes transferred between Start and Stop conditions is determined by the master device. (c) 2005 Microchip Technology Inc. DS21930A-page 11 24AAXX/24LCXX/24FCXX 5.5 Acknowledge The device that acknowledges has to pull down the SDA line during the acknowledge clock pulse in such a way that the SDA line is stable low during the high period of the acknowledge related clock pulse. Of course, setup and hold times must be taken into account. During reads, a master must signal an end-ofdata to the slave by not generating an Acknowledge bit on the last byte that has been clocked out of the slave. In this case, the slave (24XX) will leave the data line high to enable the master to generate the Stop condition (Figure 5-2). Each receiving device, when addressed, is obliged to generate an acknowledge after the reception of each byte. The master device must generate an extra clock pulse which is associated with this Acknowledge bit. Note: During a write cycle, the 24XX will not acknowledge commands. FIGURE 5-1: DATA TRANSFER SEQUENCE ON THE SERIAL BUS (A) (B) (D) (D) Start Condition Address or Acknowledge Valid (C) (A) SCL SDA FIGURE 5-2: Stop Condition Data Allowed to Change ACKNOWLEDGE TIMING Acknowledge bit 1 SCL SDA 2 3 4 5 6 7 Data from transmitter Transmitter must release the SDA line at this point, allowing the Receiver to pull the SDA line low to acknowledge the previous eight bits of data. DS21930A-page 12 8 9 1 2 3 Data from transmitter Receiver must release the SDA line at this point so the Transmitter can continue sending data. (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 5.6 Device Addressing For Devices Without Functional Address Pins The last bit of the control byte defines the operation to be performed. When set to `1', a read operation is selected. When set to `0' a write operation is selected. Following the Start condition, the 24XX monitors the SDA bus. Upon receiving a `1010' code, the block select bits and the R/W bit, the slave device outputs an Acknowledge signal on the SDA line. The address byte follows the acknowledge. A control byte is the first byte received following the Start condition from the master device (Figure 5-3). The control byte begins with a four-bit control code. For the 24XX, this is set as `1010' binary for read and write operations. The next three bits of the control byte are the block-select bits (B2, B1, B0). They are used by the master device to select which of the 256-word blocks of memory are to be accessed. These bits are in effect the three Most Significant bits of the word address. Note that B2, B1 and B0 are "don't care" for the 24XX00, the 24XX01 and 24XX02. B2 and B1 are "don't care" for the 24XX04. B2 is "don't care" for the 24XX08. FIGURE 5-3: CONTROL AND ADDRESS BYTE ASSIGNMENTS FOR DEVICES WITHOUT ADDRESS PINS Address Byte Control Byte 24XX00 S 1 0 1 0 x ACK x x x x A3 . . A0 R/W ACK x A6 . . . . . A0 R/W ACK A7 . . . . . . A0 B0 R/W ACK A7 . . . . . . A0 B1 B0 R/W ACK A7 . . . . . . A0 ACK A7 . . . . . . A0 x x 24XX01 S 1 0 1 0 x x x 24XX02 S 1 0 1 0 x x x 24XX04 S 1 0 1 0 x x 24XX08 S 1 0 1 0 x 24XX016 S Start bit 1 0 1 Control Code 0 B2 B1 B0 Block Select bits R/W R/W Acknowledge bit Read/Write bit (read = 1, write = 0) x = "don't care" bit (c) 2005 Microchip Technology Inc. DS21930A-page 13 24AAXX/24LCXX/24FCXX 5.7 Device Addressing For Devices With Functional Address Pins The last bit of the control byte defines the operation to be performed. When set to a `1', a read operation is selected. When set to a `0', a write operation is selected. A control byte is the first byte received following the Start condition from the master device (Figure 5-4). The control byte begins with a 4-bit control code. For the 24XX, this is set as `1010' binary for read and write operations. The next three bits of the control byte are the Chip Select bits (A2, A1, A0). The Chip Select bits allow the use of up to eight 24XX devices on the same bus and are used to select which device is accessed. The Chip Select bits in the control byte must correspond to the logic levels on the corresponding A2, A1 and A0 pins for the device to respond. These bits are, in effect, the three Most Significant bits of the word address. For higher density devices (24XX32 through 24XX512), the next two bytes received define the address of the first data byte. Depending on the product density, not all bits in the address high byte are used. A15, A14, A13 and A12 are "don't care" for 24XX32. A15, A14 and A13 are "don't care" for 24XX64. A15 and A14 are "don't care" for 24XX128. A15 is "don't care" for 24XX256. All address bits are used for the 24XX512. The upper address bits are transferred first, followed by the Less Significant bits. Following the Start condition, the 24XX monitors the SDA bus. Upon receiving a `1010' code, appropriate device select bits and the R/W bit, the slave device outputs an Acknowledge signal on the SDA line. The address byte(s) follow the acknowledge. For 24XX128 and 24XX256 in the MSOP package, the A0 and A1 pins are not connected. During device addressing, the A0 and A1 Chip Select bits (Figure 5-4) should be set to `0'. Only two 24XX128 or 24XX256 MSOP packages can be connected to the same bus. FIGURE 5-4: CONTROL AND ADDRESS BYTE ASSIGNMENTS FOR DEVICES WITH ADDRESS PINS Control Byte Address Byte 24C01C S 1 0 1 0 A2 A1 A0 R/W ACK x A6 . . . . . A0 24C02C S 1 0 1 0 A2 A1 A0 R/W ACK A7 . . . . . . A0 S 1 0 1 0 A2 A1 A0 R/W ACK A7 . . . . . . A0 24XX024/025 Address High Byte Control Byte 24XX32 S 1 0 1 0 A2 A1 A0 R/W ACK x x x 24XX64 S 1 0 1 0 A2 A1 A0 R/W ACK x x x 24XX128 S 1 0 1 0 A2 A1 A0 R/W ACK x x 24XX256 S 1 0 1 0 A2 A1 A0 R/W ACK x 24XX512 S 1 0 1 0 A2 A1 A0 R/W ACK Start bit Control Code Chip Select bits* Address Low Byte A11 A10 A9 A8 A7 . . . . . . A0 A12 A11 A10 A9 A8 A7 . . . . . . A0 A13 A12 A11 A10 A9 A8 A7 . . . . . . A0 A14 A13 A12 A11 A10 A9 A8 A7 . . . . . . A0 A15 A14 A13 A12 A11 A10 A9 A8 A7 . . . . . . A0 x Acknowledge bit Read/Write bit (Read = 1, Write = 0) x = "don't care" bit * Chip Select bits A1 and A0 must be set to `0' for 24XX128/256 devices in the MSOP package. DS21930A-page 14 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 5.7.1 CONTIGUOUS ADDRESSING ACROSS MULTIPLE DEVICES Chip Select bits A2, A1 and A0 can be used to expand the contiguous address space by adding up to eight 24XXs on the same bus. Software can use the three address bits of the control byte as the three Most Significant bits of the address byte. For example, in the 24XX32 devices, software can use A0 of the control byte as address bit A12; A1 as address bit A13; and A2 as address bit A14 (Table 5-1). It is not possible to sequentially read across device boundaries. TABLE 5-1: CONTROL BYTE ADDRESS BITS Maximum Devices Maximum Contiguous Address Space 1K (24C01C) 8 8 Kb 1K (24XX014) 8 8 Kb A10 A9 A8 2K (24C02C) 8 16 Kb A10 A9 A8 Chip Select Bit Chip Select Bit Chip Select Bit A2 A1 A0 A10 A9 A8 2K (24XX024/025 8 16 Kb A10 A9 A8 32K (24XX32) 8 256 Kb A14 A13 A12 64K (24XX64) 8 512 Kb A15 A14 A13 128K (24XX128) 8* 1 Mb A16* A15* A14 256K (24XX256) 8* 2 Mb A17* A16* A15 512K (24XX512) 8 4 Mb A18 A17 A16 * Up to two 24XX128 or 24XX256 devices in the MSOP package can be added for up to 256 kb or 512 kb of address space, respectively. Bits A0 and A1 must be set to `0'. (c) 2005 Microchip Technology Inc. DS21930A-page 15 24AAXX/24LCXX/24FCXX 6.0 WRITE OPERATIONS 6.1 Byte Write For the 24XX00 devices, only the lower four address bits are used by the device. The upper four bits are "don't cares." After receiving the ACK from the 24XX acknowledging the final address byte, the master device transmits the data word to be written into the addressed memory location. The 24XX acknowledges again and the master generates a Stop condition, which initiates the internal write cycle. A byte write operation begins with a Start condition from the master followed by the four-bit control code (see Figure 6-1 and Figure 6-2). The next 3 bits are either the Block Address bits (for devices without address pins) or the Chip Select bits (for devices with address pins). Then the master transmitter clocks the R/W bit (which is a logic low) onto the bus. The slave then generates an Acknowledge bit during the ninth clock cycle. If an attempt is made to write to an array with the WP pin held high, the device will acknowledge the command, but no write cycle will occur, no data will be written, and the device will immediately accept a new command. After a byte Write command, the internal address counter will increment to the next address location. During a write cycle, the 24XX will not acknowledge commands. The next byte transmitted by the master is the address byte (for 128-bit to 16 Kbit devices) or the high-order address byte (for 32-512 Kbit devices). For 32 through 512 Kbit devices, the high-order address byte is followed by the low-order address byte. In either case, each address byte is acknowledged by the 24XX and the address bits are latched into the internal address counter of the 24XX. FIGURE 6-1: BYTE WRITE: 128-BIT TO 16 KBIT DEVICES Bus Activity Master S T A R T SDA Line S Control Byte Address Byte P A C K Bus Activity FIGURE 6-2: Bus Activity Master SDA Line Bus Activity DS21930A-page 16 S T O P Data Byte A C K A C K BYTE WRITE: 32 TO 512 KBIT DEVICES S T A R T High Order Address Byte Control Byte Low Order Address Byte S T O P Data Byte S P A C K A C K A C K A C K (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 6.2 Page Write 6.3 The write control byte, word address byte(s), and the first data byte are transmitted to the 24XX in much the same way as in a byte write (see Figure 6-3 and Figure 6-4 ). The exception is that instead of generating a Stop condition, the master transmits up to one page of bytes(1), which is temporarily stored in the on-chip page buffer. This data is then written into memory once the master has transmitted a Stop condition. Upon receipt of each word, the internal address counter is incremented by one. If the master should transmit more than one page of data prior to generating the Stop condition, the address counter will roll over and the previously received data will be overwritten. As with the byte write operation, once the Stop condition is received, an internal write cycle begins. During the write cycle, the 24XX will not acknowledge commands. Write-Protection The WP pin allows the user to write-protect the array when the pin is tied to VCC. See Device Selection Table 1-1 for the write-protect scheme of each device. If tied to VSS, the write protection is disabled. The WP pin is sampled prior to the Stop bit for every Write command (Figure 2-1). Toggling the WP pin after the Stop bit will have no effect on the execution of the write cycle. Note: Page write operations are limited to writing bytes within a single physical page, regardless of the number of bytes actually being written. Physical page boundaries start at addresses that are integer multiples of the page buffer size (or `page size') and end at addresses that are integer multiples of [page size - 1]. If a Page Write command attempts to write across a physical page boundary, the result is that the data wraps around to the beginning of the current page (overwriting data previously stored there), instead of being written to the next page, as might be expected. It is therefore necessary for the application software to prevent page write operations that would attempt to cross a page boundary. Page writes can be any number of bytes within a page (up to the page size), starting at any address. Only the data bytes being addressed will be changed within the page. If an attempt is made to write to the array with the WP pin held high, the device will acknowledge the command, but no write cycle will occur, no data will be written and the device will immediately accept a new command. Note 1: See Device Selection Table 1-1 for the page size of each device. FIGURE 6-3: PAGE WRITE: 1 KB TO 16 KBIT DEVICES Bus Activity Master S T A R T SDA Line S Address Byte Control Byte S T O P Final Data Byte* P A C K Bus Activity FIGURE 6-4: Second Data Byte Initial Data Byte A C K A C K A C K A C K PAGE WRITE: 32 TO 512 KBIT DEVICES Bus Activity Master S T A R T SDA Line S Control Byte Bus Activity High Order Address Byte S T O P Final Data Byte* Initial Data Byte Low Order Address Byte P A C K A C K A C K A C K A C K * See Table 1-1 for maximum number of data bytes in a page. (c) 2005 Microchip Technology Inc. DS21930A-page 17 24AAXX/24LCXX/24FCXX 7.0 ACKNOWLEDGE POLLING Since the device will not acknowledge commands during a write cycle, this can be used to determine when the cycle is complete (This feature can be used to maximize bus throughput). Once the Stop condition for a Write command has been issued from the master, the device initiates the internally timed write cycle. ACK polling can be initiated immediately. This involves the master sending a Start condition, followed by the control byte for a Write command (R/W = 0). If the device is still busy with the write cycle, then no ACK will be returned. If no ACK is returned, the Start bit and control byte must be re-sent. If the cycle is complete, then the device will return the ACK and the master can then proceed with the next Read or Write command. See Figure 7-1 for flow diagram. FIGURE 7-1: ACKNOWLEDGE POLLING FLOW Send Write Command Send Stop Condition to Initiate Write Cycle Send Start Send Control Byte with R/W = 0 Did Device Acknowledge (ACK = 0)? No Yes Next Operation DS21930A-page 18 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8.0 READ OPERATION 8.2 Random read operations allow the master to access any memory location in a random manner. To perform this type of read operation, the byte address must first be set. This is done by sending the byte address to the 24XX as part of a write operation (R/W bit set to `0'). Once the byte address is sent, the master generates a Start condition following the acknowledge. This terminates the write operation, but not before the internal address counter is set. The master then issues the control byte again, but with the R/W bit set to a `1'. The 24XX will then issue an acknowledge and transmit the 8-bit data byte. The master will not acknowledge the transfer but does generate a Stop condition, which causes the 24XX to discontinue transmission (Figure 8-2 and Figure 8-3). After a random Read command, the internal address counter will increment to the next address location. Read operations are initiated in much the same way as write operations with the exception that the R/W bit of the control byte is set to `1'. There are three basic types of read operations: current address read, random read and sequential read. 8.1 Current Address Read The 24XX contains an address counter that maintains the address of the last byte accessed, internally incremented by `1'. Therefore, if the previous read or write operation was to address `n' (n is any legal address), the next current address read operation would access data from address n + 1. Upon receipt of the control byte with R/W bit set to `1', the 24XX issues an acknowledge and transmits the 8-bit data byte. The master will not acknowledge the transfer, but does generate a Stop condition and the 24XX discontinues transmission (Figure 8-1). FIGURE 8-1: CURRENT ADDRESS READ Bus Activity Master S T A R T SDA Line S Control Byte S T O P Data Byte P A C K Bus Activity FIGURE 8-2: N O A C K RANDOM READ: 128-BIT TO 16 KBIT DEVICES S T A R T Bus Activity Master Control Byte S T A R T Address Byte (n) S A C K Bus Activity S T O P Data Byte P A C K A C K N O A C K FIGURE 8-3: SDA Line Control Byte S SDA Line Bus Activity Master Random Read RANDOM READ: 32 TO 512 KBIT DEVICES S T A R T Control Byte High Order Address Byte S T A R T Low Order Address Byte S Bus Activity (c) 2005 Microchip Technology Inc. Control Byte S T O P Data Byte S A C K A C K A C K P A C K N O A C K DS21930A-page 19 24AAXX/24LCXX/24FCXX 8.3 Sequential Read Sequential reads are initiated in the same way as a random read except that after the 24XX transmits the first data byte, the master issues an acknowledge as opposed to the Stop condition used in a random read. This acknowledge directs the 24XX to transmit the next sequentially addressed data byte (Figure 8-4). Following the final byte transmitted to the master, the master will NOT generate an acknowledge but will generate a Stop condition. To provide sequential reads, the 24XX contains an internal address pointer which is incremented by one at the completion of each operation. This address pointer allows the entire memory contents to be serially read during one operation. If the last address byte in the array is acknowledged, the address pointer will roll over to address 0x00. FIGURE 8-4: Bus Activity Master SEQUENTIAL READ Control Byte Initial Data Byte Second Data Byte S T O P Final Data Byte Third Data Byte P SDA Line Bus Activity DS21930A-page 20 A C K A C K A C K A C K N O A C K (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX APPENDIX A: REVISION HISTORY Revision A Original release of document. Combined Serial EEPROM 24XXX device data sheets. (c) 2005 Microchip Technology Inc. DS21930A-page 21 24AAXX/24LCXX/24FCXX 9.0 PACKAGING INFORMATION 9.1 Package Marking Information Example: Pb-free 8-Lead PDIP Example: Sn/Pb 24LC01B I/P e3 1L7 0528 XXXXXXXX XXXXXNNN YYWW 24LC01B I/P 1L7 0528 8-Lead PDIP Package Marking (Pb-free) Device Line 1 Marking Device Line 1 Marking 24AA00 24AA00 24LC00 24AA01 24AA01 24LC01B 24LC01B 24LC00 24AA014 24AA014 24LC014 24LC014 24AA02 24AA02 24LC02B 24LC02B 24AA024 24AA024 24LC024 24LC024 24AA025 24AA025 24LC025 24LC025 24AA04 24AA04 24LC04B 24LC04B 24AA08 24AA08 24LC08B 24LC08B 24AA16 24LC16B 24LC16B 24AA32A 24LC32A 24LC32A 24AA16 24AA32A Device 24C00 Line 1 Marking Device Line 1 Marking 24C00 24C01C 24C01C 24C02C 24C02C 24AA64 24AA64 24LC64 24LC64 24AA128 24AA128 24LC128 24LC128 24FC128 24FC128 24AA256 24AA256 24LC256 24LC256 24FC256 24FC256 24AA512 24AA512 24LC512 24LC512 24FC512 24FC512 Legend: XX...X Y YY WW NNN e3 Note: Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion. DS21930A-page 22 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8-Lead SOIC XXXXXXXX XXXXXNNN YYWW Example: Pb-free 24LC01BI SN e3 0528 1L7 Example: Sn/Pb 24LC01B I/SN 0528 1L7 8-Lead SOIC Package Marking (Pb-free) Device Line 1 Marking Device Line 1 Marking 24AA00 24AA00T 24LC00 24AA01 24AA01T 24LC01B 24LC01BT 24LC00T 24AA014 24AA014T 24LC014 24LC014T 24AA02 24AA02T 24LC02B 24LC02BT 24AA024 24AA024T 24LC024 24LC024T 24AA025 24AA025T 24LC025 24LC025T 24AA04 24AA04T 24LC04B 24LC04BT 24AA08 24AA08T 24LC08B 24LC08BT 24AA16 24AA16T 24LC16B 24LC16BT 24AA32A 24AA32AT 24LC32A 24LC32AT Device 24C00 Line 1 Marking Line 1 Marking Device 24C00T 24C01C 24C01CT 24C02C 24C02CT 24AA64 24AA64T 24LC64 24LC64T 24AA128 24AA128T 24LC128 24LC128T 24FC128 24FC128T 24AA256 24AA256T 24LC256 24LC256T 24FC256 24FC256T 24AA512 24AA512T 24LC512 24LC512T 24FC512 24FC512T Note: T = Temperature range: I = Industrial, E = Extended, (blank) = Commercial Legend: XX...X Y YY WW NNN e3 Note: Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion. (c) 2005 Microchip Technology Inc. DS21930A-page 23 24AAXX/24LCXX/24FCXX Example: 8-Lead 2x3 DFN 244 506 L7 XXX YWW NN 8-Lead 2x3mm DFN Package Marking (Pb-free) Device 24AA00 Industrial Line 1 Marking 201 Device 24LC00 Industrial Line 1 Marking E-Temp Line 1 Marking 204 205 24AA01 211 24LC01B 214 215 24AA014 2N1 24LC014 2N4 2N5 24AA02 221 24LC02B 224 225 24AA024 2P1 24LC024 2P4 2P5 24AA025 2R1 24LC025 2R4 2R5 24AA04 231 24LC04B 234 235 24AA08 241 24LC08B 244 245 24AA16 251 24LC16B 254 255 24AA32A 261 24LC32A 264 265 24AA64 271 24LC64 274 275 Legend: XX...X Y YY WW NNN e3 Note: Note: DS21930A-page 24 Industrial Line 1 Marking E-Temp Line 1 Marking 24C00 207 208 24C01C 2N7 2N8 24C02C 2P7 2P8 Device Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8-Lead DFN XXXXXXX T/XXXXX YYWW NNN Example: Pb-free Example: Sn/Pb 24AA128 I/MF e3 0528 1L7 24AA128 I/MF 0528 1L7 8-Lead 5x6mm DFN Package Marking (Pb-free) Device Line 1 Marking Device Line 1 Marking Device Line 1 Marking 24AA128 24AA128 24LC128 24LC128 24FC128 24FC128 24AA256 24AA256 24LC256 24LC256 24FC256 24FC256 24AA512 24AA512 24LC512 24LC512 24FC512 24FC512 Note: Temperature range (T) listed on second line. I = Industrial, E = Extended Legend: XX...X Y YY WW NNN e3 Note: Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2005 Microchip Technology Inc. DS21930A-page 25 24AAXX/24LCXX/24FCXX Example: 5-Lead SOT-23 5EL7 XXNN 5-Lead SOT-23 Package Marking (Pb-free) Device Comm. Indust. Marking Marking Device Comm. Marking Indust. E-Temp Comm. Indust. E-Temp Device Marking Marking Marking Marking Marking 24AA00 A0NN B0NN 24LC00 L0NN M0NN N0NN 24AA01 A1NN B1NN 24LC01B L1NN M1NN N1NN 24AA02 A2NN B2NN 24LC02B L2NN M2NN N2NN 24AA04 A3NN B3NN 24LC04B L3NN M3NN N3NN 24AA08 A4NN B4NN 24LC08B L4NN M4NN N4NN 24AA16 A5NN B5NN 24LC16B L5NN M5NN N5NN Legend: XX...X Y YY WW NNN e3 Note: 24C00 C0NN D0NN E0NN Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: DS21930A-page 26 In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8-Lead MSOP (150 mil) Example: 4L8BI 2281L7 XXXXXXT YWWNNN 8-Lead MSOP Package Marking (Pb-free) Device Line 1 Marking Device Line 1 Marking 24AA01 4A01T 24LC01B 4L1BT 24AA014 4A14T 24LC014 4L14T 24AA02 4A02T 24LC02B 4L2BT 24AA024 4A24T 24LC024 4L24T 24AA025 4A25T 24LC025 4L25T 24AA04 4A04T 24LC04B 4L4BT 24AA08 4A08T 24LC08B 4L8BT 24AA16 4A16T 24LC16B 4L16T 24AA32A 4A32AT 24LC32A 4L32AT Device Line 1 Marking 24C01C 4C1CT 24C02C 4C2CT Device Line 1 Marking 24AA64 4A64T 24LC64 4L64T 24AA128 4A128T 24LC128 4L128T 24FC128 4F128T 24AA256 4A256T 24LC256 4L256T 24FC256 4F256T Note: T = Temperature range: I = Industrial, E = Extended, (blank) = Commercial Legend: XX...X Y YY WW NNN e3 Note: Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2005 Microchip Technology Inc. DS21930A-page 27 24AAXX/24LCXX/24FCXX Example: 8-Lead TSSOP 4L08 I228 1L7 XXXX TYWW NNN 8-Lead TSSOP Package Marking (Pb-free) Device Line 1 Marking 24AA00 Device 4A00 Line 1 Marking 24LC00 4L00 Device Line 1 Marking 24C00 4C00 24C01C 4C1C 24C02C 4C2C Device Line 1 Marking 24AA01 4A01 24LC01B 4L1B 24AA014 4A14 24LC014 4L14 24AA02 4A02 24LC02B 4L02 24AA024 4A24 24LC024 4L24 24AA025 4A25 24LC025 4L25 24AA04 4A04 24LC04B 4L04 24AA08 4A08 24LC08B 4L08 24AA16 4A16 24LC16B 4L16 24AA32A 4AA 24LC32A 4LA 24AA64 4AB 24LC64 4LB 24AA128 4AC 24LC128 4LC 24FC128 4FC 24AA256 4AD 24LC256 4LD 24FC256 4FD Note: T = Temperature range: I = Industrial, E = Extended, (blank) = Commercial Legend: XX...X Y YY WW NNN e3 Note: Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: DS21930A-page 28 In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2005 Microchip Technology Inc. 14-Lead TSSOP Example: XXXXXXXT YYWW NNN 4A256I 0528 1L7 14-Lead TSSOP Package Marking (Pb-free) Device Line 1 Marking Device Line 1 Marking Device Line 1 Marking 24AA128 4A128T 24LC128 4L128T 24FC128 4F128T 24AA256 4A256T 24LC256 4L256T 24FC256 4F256T 24AA512 4A512T 24LC512 4L512T 24FC512 4F512T Note: T = Temperature range: I = Industrial, E = Extended Legend: XX...X Y YY WW NNN e3 Note: Part number or part number code Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code (2 characters for small packages) Pb-free JEDEC designator for Matte Tin (Sn) plated devices For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2005 Microchip Technology Inc. DS21930A-page 29 24AAXX/24LCXX/24FCXX 8-Lead Plastic Dual In-line (P) - 300 mil (PDIP) E1 D 2 n 1 E A2 A L c A1 B1 p eB B Units Dimension Limits n p Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width Lower Lead Width Overall Row Spacing Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic A A2 A1 E E1 D L c B1 B eB MIN .140 .115 .015 .300 .240 .360 .125 .008 .045 .014 .310 5 5 INCHES* NOM MAX 8 .100 .155 .130 .170 .145 .313 .250 .373 .130 .012 .058 .018 .370 10 10 .325 .260 .385 .135 .015 .070 .022 .430 15 15 MILLIMETERS NOM 8 2.54 3.56 3.94 2.92 3.30 0.38 7.62 7.94 6.10 6.35 9.14 9.46 3.18 3.30 0.20 0.29 1.14 1.46 0.36 0.46 7.87 9.40 5 10 5 10 MIN MAX 4.32 3.68 8.26 6.60 9.78 3.43 0.38 1.78 0.56 10.92 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-001 Drawing No. C04-018 DS21930A-page 30 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8-Lead Plastic Small Outline (SN) - Narrow, 150 mil (SOIC) E E1 p D 2 B n 1 h 45 c A2 A L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic A A2 A1 E E1 D h L c B MIN .053 .052 .004 .228 .146 .189 .010 .019 0 .008 .013 0 0 A1 INCHES* NOM 8 .050 .061 .056 .007 .237 .154 .193 .015 .025 4 .009 .017 12 12 MAX .069 .061 .010 .244 .157 .197 .020 .030 8 .010 .020 15 15 MILLIMETERS NOM 8 1.27 1.35 1.55 1.32 1.42 0.10 0.18 5.79 6.02 3.71 3.91 4.80 4.90 0.25 0.38 0.48 0.62 0 4 0.20 0.23 0.33 0.42 0 12 0 12 MIN MAX 1.75 1.55 0.25 6.20 3.99 5.00 0.51 0.76 8 0.25 0.51 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057 (c) 2005 Microchip Technology Inc. DS21930A-page 31 24AAXX/24LCXX/24FCXX 8-Lead Plastic Dual Flat No Lead Package (MC) 2x3x0.9 mm Body (DFN) - Saw Singulated p D b n L E PIN 1 ID INDEX AREA (NOTE 2) E2 EXPOSED METAL PAD 2 1 D2 BOTTOM VIEW TOP VIEW A A1 A3 EXPOSED TIE BAR (NOTE 1) Number of Pins Pitch Overall Height Standoff Contact Thickness Overall Length Exposed Pad Length Overall Width Exposed Pad Width Contact Width Contact Length Units Dimension Limits n p (Note 3) (Note 3) A A1 A3 D D2 E E2 b L MIN .031 .000 .055 .047 .008 .012 INCHES NOM 8 .020 BSC .035 .001 .008 REF. .079 BSC -.118 BSC -.010 .016 MAX MIN .039 .002 0.80 0.00 .064 1.39 .071 .012 .020 1.20 0.20 0.30 MILLIMETERS* NOM 8 0.50 BSC 0.90 0.02 0.20 REF. 2.00 BSC -3.00 BSC -0.25 0.40 MAX 1.00 0.05 1.62 1.80 0.30 0.50 *Controlling Parameter Notes: 1. Package may have one or more exposed tie bars at ends. 2. Pin 1 visual index feature may vary, but must be located within the hatched area. 3. Exposed pad dimensions vary with paddle size. 4. JEDEC equivalent: MO-229 Drawing No. C04-123 DS21930A-page 32 Revised 05/24/04 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8-Lead Plastic Dual Flat No Lead Package (MF) 6x5 mm Body (DFN-S) - Saw Singulated (c) 2005 Microchip Technology Inc. DS21930A-page 33 24AAXX/24LCXX/24FCXX 5-Lead Plastic Small Outline Transistor (OT) (SOT-23) E E1 p B p1 n D 1 c A L Units Dimension Limits n p MIN A2 A1 INCHES* NOM 5 .038 .075 .046 .043 .003 .110 .064 .116 .018 5 .006 .017 5 5 MAX MIN MILLIMETERS NOM 5 0.95 1.90 1.18 1.10 0.08 2.80 1.63 2.95 0.45 5 0.15 0.43 5 5 Number of Pins Pitch p1 Outside lead pitch (basic) Overall Height A .035 .057 0.90 Molded Package Thickness A2 .035 .051 0.90 Standoff A1 .000 .006 0.00 Overall Width E .102 .118 2.60 Molded Package Width E1 .059 .069 1.50 Overall Length D .110 .122 2.80 Foot Length L .014 .022 0.35 Foot Angle 0 10 0 c Lead Thickness .004 .008 0.09 Lead Width B .014 .020 0.35 Mold Draft Angle Top 0 10 0 Mold Draft Angle Bottom 0 10 0 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. MAX 1.45 1.30 0.15 3.00 1.75 3.10 0.55 10 0.20 0.50 10 10 EIAJ Equivalent: SC-74A Drawing No. C04-091 DS21930A-page 34 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 8-Lead Plastic Micro Small Outline Package (MS) (MSOP) E E1 p D 2 B n 1 A2 A c A1 (F) L Units Dimension Limits n p MIN INCHES NOM MAX MILLIMETERS* NOM 8 0.65 BSC 0.75 0.85 0.00 4.90 BSC 3.00 BSC 3.00 BSC 0.40 0.60 0.95 REF 0 0.08 0.22 5 5 - MIN 8 Number of Pins .026 BSC Pitch A .043 Overall Height A2 .030 .033 .037 Molded Package Thickness .006 .000 A1 Standoff E .193 TYP. Overall Width .118 BSC E1 Molded Package Width .118 BSC D Overall Length L .016 .024 .031 Foot Length Footprint (Reference) F .037 REF Foot Angle 0 8 c Lead Thickness .003 .006 .009 B Lead Width .009 .012 .016 Mold Draft Angle Top 5 15 5 15 Mold Draft Angle Bottom *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. MAX 1.10 0.95 0.15 0.80 8 0.23 0.40 15 15 JEDEC Equivalent: MO-187 Drawing No. C04-111 (c) 2005 Microchip Technology Inc. DS21930A-page 35 24AAXX/24LCXX/24FCXX 8-Lead Plastic Thin Shrink Small Outline (ST) - 4.4 mm (TSSOP) E E1 p D 2 1 n B A c A1 A2 L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Molded Package Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic A A2 A1 E E1 D L c B MIN INCHES NOM MAX 8 .026 .033 .002 .246 .169 .114 .020 0 .004 .007 0 0 .035 .004 .251 .173 .118 .024 4 .006 .010 5 5 .043 .037 .006 .256 .177 .122 .028 8 .008 .012 10 10 MILLIMETERS* NOM MAX 8 0.65 1.10 0.85 0.90 0.95 0.05 0.10 0.15 6.25 6.38 6.50 4.30 4.40 4.50 2.90 3.00 3.10 0.50 0.60 0.70 0 4 8 0.09 0.15 0.20 0.19 0.25 0.30 0 5 10 0 5 10 MIN Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. JEDEC Equivalent: MO-153 Drawing No. C04-086 DS21930A-page 36 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX 14-Lead Plastic Thin Shrink Small Outline (ST) - 4.4 mm Body (TSSOP) E E1 p D 2 1 n B A c A1 L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Molded Package Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic A A2 A1 E E1 D L c B MIN .033 .002 .246 .169 .193 .020 0 .004 .007 0 0 INCHES NOM 14 .026 .035 .004 .251 .173 .197 .024 4 .006 .010 5 5 A2 MAX .043 .037 .006 .256 .177 .201 .028 8 .008 .012 10 10 MILLIMETERS* NOM MAX 14 0.65 1.10 0.85 0.90 0.95 0.05 0.10 0.15 6.25 6.38 6.50 4.30 4.40 4.50 4.90 5.00 5.10 0.50 0.60 0.70 0 4 8 0.09 0.15 0.20 0.19 0.25 0.30 0 5 10 0 5 10 MIN Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. JEDEC Equivalent: MO-153 Drawing No. C04-087 (c) 2005 Microchip Technology Inc. DS21930A-page 37 24AAXX/24LCXX/24FCXX NOTES: DS21930A-page 38 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX THE MICROCHIP WEB SITE CUSTOMER SUPPORT Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information: Users of Microchip products can receive assistance through several channels: * Product Support - Data sheets and errata, application notes and sample programs, design resources, user's guides and hardware support documents, latest software releases and archived software * General Technical Support - Frequently Asked Questions (FAQ), technical support requests, online discussion groups, Microchip consultant program member listing * Business of Microchip - Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives * * * * * Distributor or Representative Local Sales Office Field Application Engineer (FAE) Technical Support Development Systems Information Line Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com In addition, there is a Development Systems Information Line which lists the latest versions of Microchip's development systems software products. This line also provides information on how customers can receive currently available upgrade kits. CUSTOMER CHANGE NOTIFICATION SERVICE The Development numbers are: Systems Information Microchip's customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. 1-480-792-7302 - Other International Locations Line 1-800-755-2345 - United States and most of Canada To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. (c) 2005 Microchip Technology Inc. DS21930A-page 39 24AAXX/24LCXX/24FCXX READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this document. To: Technical Publications Manager RE: Reader Response Total Pages Sent ________ From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ FAX: (______) _________ - _________ Application (optional): Would you like a reply? Y N Device: 24AAXX/24LCXX/24FCXX Literature Number: DS21930A Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs? 3. Do you find the organization of this document easy to follow? If not, why? 4. What additions to the document do you think would enhance the structure and subject? 5. What deletions from the document could be made without affecting the overall usefulness? 6. Is there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21930A-page 40 (c) 2005 Microchip Technology Inc. 24AAXX/24LCXX/24FCXX PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. Device Part Number (Table 1-1) X X PART NO. /XX X Packaging Temperature Package Lead Finish Medium Range Examples: a) b) c) Device: See Table 1-1 Temperature I Range: E C = = = -40C to +85C -40C to +125C 0C to +70C Packaging Medium: T = Tape and Reel Blank = Tube Package: P SN SM ST ST14 MS OT MC MF Lead finish: Blank = G = = = = = = = = = = Plastic DIP (300 mil body), 8-lead Plastic SOIC (150 mil body), 8-lead Plastic SOIC (208 mil body), 8-lead Plastic TSSOP (4.4 mm), 8-lead Plastic TSSOP (4.4 mm), 14-lead Plastic Micro Small Outline (MSOP), 8-lead SOT-23, 5-lead (Tape and Reel only) 2x3 mm DFN, 8-lead 5x6 mm DFN, 8-lead 24C00/P: 128-bit, Commercial Temperature, 5V, PDIP package 24AA014-I/SN: 1 Kbit, Industrial Temperature, 1.8V, SOIC package 24AA02T-I/OT: 2 Kbit, Industrial Temperature, 1.8V, SOT-23 package, Tape and Reel d) 24LC16B-I/P: 16 Kbit, Industrial Temperature, 2.5V, PDIP package e) 24LC32A-E/MS: 32 Kbit, Extended Temperature, 2.5V, MSOP package f) 24LC64T-I/MC: 64 Kbit, Industrial Temperature, 2.5V 2x3 mm DFN package, Tape and Reel g) 24LC256-E/STG: 256 Kbit, Extended Temperature, 2.5V, TSSOP package, Pb-free h) 24FC512T-I/SM: 512 Kbit, Industrial Temperature, 1 MHz, SOIC package, Tape and Reel Pb-free - Matte Tin (see Note 1) Pb-free - Matte Tin only Note 1: Most products manufactured after January 2005 have a Matte Tin (Pb-free) finish. Most products manufactured before January 2005 have a finish of approximately 63% Sn and 37% Pb (Sn/Pb). Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion, including conversion date codes. Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. 3. Your local Microchip sales office The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. (c) 2005 Microchip Technology Inc. DS21930A-page41 24AAXX/24LCXX/24FCXX NOTES: DS21930A-page 42 (c) 2005 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: * Microchip products meet the specification contained in their particular Microchip Data Sheet. * Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. * There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. * Microchip is willing to work with the customer who is concerned about the integrity of their code. * Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable." Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Linear Active Thermistor, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2005, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company's quality system processes and procedures are for its PICmicro(R) 8-bit MCUs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified. (c) 2005 Microchip Technology Inc. DS21930A-page 43 WORLDWIDE SALES AND SERVICE AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 India - Bangalore Tel: 91-80-2229-0061 Fax: 91-80-2229-0062 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 India - New Delhi Tel: 91-11-5160-8631 Fax: 91-11-5160-8632 Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4450-2828 Fax: 45-4485-2829 China - Chengdu Tel: 86-28-8676-6200 Fax: 86-28-8676-6599 Japan - Kanagawa Tel: 81-45-471- 6166 Fax: 81-45-471-6122 France - Massy Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Germany - Ismaning Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Alpharetta, GA Tel: 770-640-0034 Fax: 770-640-0307 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 China - Qingdao Tel: 86-532-502-7355 Fax: 86-532-502-7205 Malaysia - Penang Tel:011-604-646-8870 Fax:011-604-646-5086 Philippines - Manila Tel: 011-632-634-9065 Fax: 011-632-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 England - Berkshire Tel: 44-118-921-5869 Fax: 44-118-921-5820 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 San Jose Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 04/20/05 DS21930A-page 44 (c) 2005 Microchip Technology Inc.