MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection General Description The MAX7317 serial-interfaced peripheral provides microprocessors with 10 I/O ports rated to 7V. Each port can be individually configured as either an open-drain output, or an overvoltage-protected Schmitt input. The MAX7317 supports hot insertion. All port pins remain high impedance in power-down (V+ = 0V) with up to 8V asserted on them. The MAX7317 is available in 16-pin TQFN and QSOP packages and operates in the -40C to +125C range. For a similar part with constant-current outputs and 8-bit PWM controls, refer to the MAX6966/MAX6967 data sheet. Applications Portable Equipment Cellular Phones White Goods Industrial Controllers System Monitoring Benefits and Features Industry-Standard 4-Wire Interface Simplifies I/O Ports Expansion Independent of Microprocessor Architecture * High-Speed, 26MHz, SPI-/QSPITM-/MICROWIRE(R)Compatible Serial Interface * 2.25V to 3.6V Operation Protection Circuitry Ensures Robust Operation * I/O Port Inputs Are Overvoltage Protected to 7V * I/O Port Outputs Are 7V-Rated Open Drain * I/O Ports Support Hot Insertion Low Power Consumption and Small Package Reduce Board Size and Power-Supply Requirements * 0.7A (typ), 1.9A (max) Standby Current * 3mm x 3mm, 0.8mm High TQFN Package Ordering Information PART MAX7317ATE+ 16 TQFN-EP* -40C to +125C 3mm x 3mm x 0.8mm MAX7317AEE+ -40C to +125C 16 QSOP QSPI is a trademark of Motorola, Inc. MICROWIRE is a registered trademark of National Semiconductor Corp. PINPACKAGE TEMP RANGE +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Typical Application Circuit CS CS GND I/O PORTS P7 P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 P8 DOUT 12 11 10 9 DIN 13 8 P6 V+ 14 7 P5 6 GND 5 P4 SCLK 15 MAX7317ATE CS 16 + 1 2 3 4 P3 DIN MISO TOP VIEW P9 MOSI MAX7317 P2 SCLK P1 SCLK P0 C DOUT Pin Configurations +3.3V TQFN Pin Configurations continued at end of data sheet. 19-3380; Rev 4; 4/15 TOP MARK ACH -- MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Absolute Maximum Ratings Voltage (with respect to GND) V+.............................................................................-0.3V to +4V SCLK, DIN, CS, DOUT................................-0.3V to (V+ + 0.3V) P_ ............................................................................-0.3V to +8V DC Current into P_ .............................................................24mA DC Current into DOUT........................................................10mA Total GND Current.............................................................200mA Continuous Power Dissipation (TA = +70C) 16-Pin TQFN (derate 14.7mW/C above +70C)....... 1176mW 16-Pin QSOP (derate 8.3mW/C above +70C)..........667mW Operating Temperature Range (TMIN to TMAX).............................................. -40C to +125C Junction Temperature.......................................................+150C Storage Temperature Range............................. -65C to +150C Lead Temperature (soldering, 10s).................................. +300C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (Typical Operating Circuit, V+ = 2.25V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25C.) (Note 1) PARAMETER Operating Supply Voltage Output Load External Supply Voltage P0-P9 Standby Current (Interface Idle) Supply Current SYMBOL CONDITIONS V+ ISTBY I+ All digital inputs at V+ or GND TA = +25C fSCLK = 26MHz; other TA = +25C digital inputs at V+ or TA = TMIN to +85C GND; DOUT unloaded T = T A MIN to TMAX P0-P9 output register set to 0x01 Input Leakage Current (P0-P9, DIN, SCLK, CS) IIH, IIL VPOR A 620 0.7 x V+ A V 0.3 x V+ V +0.2 A 10 VOLPOUT = 5V VOLDOUT ISINK = 6mA 1.5 730 ISINK = 0.5mA, output register set to 0x00 VOHDOUT ISOURCE = -6mA V 680 (Note 2) Output Low Voltage (DOUT) www.maximintegrated.com 385 -0.2 Output High Voltage (DOUT) 7 1.9 VIL VOLP_ V 1.7 Input Low Voltage (P0-P9, DIN, SCLK, CS) Output Low Short-Circuit Current (P0-P9) UNITS 3.60 TA = TMIN to TMAX P0-P9 output register set to 0x01 Input Capacitance (P0-P9, DIN, SCLK, CS 0.70 MAX TA = TMIN to +85C VIH Power-On Reset Voltage TYP VEXT Input High Voltage (P0-P9, DIN, SCLK, CS) Output Low Voltage (P0-P9) MIN 2.25 10.8 pF 0.4 V 20 mA V+ - 0.3V V 0.3 2 V V Maxim Integrated 2 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Timing Characteristics (Typical Operating Circuit, V+ = 2.25V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SCLK Clock Period tCP 38.4 ns SCLK Pulse-Width High tCH 19 ns SCLK Pulse-Width Low tCL 19 ns CS Fall to SCLK Rise Setup Time tCSS 9.5 ns SCLK Rise to CS Rise Hold Time tCSH 2.5 ns tDS 9.5 ns DIN Hold Time tDH 2.5 Output Data Propagation Delay tDO DIN Setup Time DOUT Output Rise and Fall Times Minimum CS Pulse High tFT CLOAD = 20pF (Note 2) tCSW 38.4 ns 19 ns 10 ns ns Note 1: All parameters are tested at TA = +25C. Specifications over temperature are guaranteed by design. Note 2: Guaranteed by design. MAX7317 Block Diagram MAX7317 I/O REGISTER I/O PORTS SCLK CS DIN DOUT www.maximintegrated.com 4-WIRE SERIAL INTERFACE P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 Maxim Integrated 3 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Typical Operating Characteristics (TA = +25C, unless otherwise noted.) TA = +85C 9 TA = +125C 6 3 0 0.9 0.8 0.7 2 4 6 8 V+ = 2.7V V+ = 3.3V 0.6 0.5 0 V+ = 3.6V 0.4 V+ = 2.25V -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C) PORT VOLTAGE (V) 0.4 SUPPLY CURRENT (I+) vs. TEMPERATURE V+ = 3.6V V+ = 3.3V MAX7317 toc03 TA = +25C 0.5 STANDBY CURRENT (mA) TA = -40C 12 1.0 STANDBY CURRENT (A) MAX7317 toc01 PORT SINK CURRENT (mA) 15 STANDBY CURRENT vs. TEMPERATURE MAX7317 toc02 PORT SINK CURRENT vs. PORT VOLTAGE 0.3 0.2 V+ = 2.7V 0.1 0 V+ = 2.25V -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C) Pin Description PIN NAME FUNCTION 15 SCLK Serial-Clock Input. On SCLK's rising edge, data shifts into the internal shift register. On SCLK's falling edge, data is clocked out of DOUT. SCLK is active only while CS is low. 16 CS Chip-Select Input. Serial data is loaded into the shift register while CS is low. The most recent 16 bits of data latch on CS's rising edge. P0-P9 I/O Ports. P0 to P9 can be configured as open-drain, current-sink outputs rated at 20mA maximum, or as CMOS inputs, or as open-drain outputs. Loads should be connected to a supply voltage no higher than 7V. QSOP TQFN 1 2 3-7, 9-13 1-5, 7-11 8 6 GND 14 12 DOUT Serial-Data Output. The data into DIN is valid at DOUT 15.5 clock cycles later. Use this pin to daisy-chain several devices or allow data readback. Output is push-pull. 15 13 DIN Serial-Data Input. Data from DIN loads into the internal 16-bit shift register on SCLK's rising edge. 16 14 V+ Positive Supply Voltage. Bypass V+ to GND with a 0.047F ceramic capacitor. -- PAD EP Exposed Pad on Package Underside. Connect to GND. www.maximintegrated.com Ground Maxim Integrated 4 MAX7317 Detailed Description The MAX7317 is a general-purpose input/output (GPIO) peripheral that provides 10 I/O ports, P0 to P9, controlled through a high-speed SPI-compatible serial interface. The 10 I/O ports can be used as inputs or open-drain outputs in any combination. Ports withstand 7V independent of the MAX7317's supply voltage whether used as inputs or outputs. Figure 1 shows the I/O port structure of the MAX7317. Register Structure The MAX7317 contains 10 internal registers, addressed as 0x00-0x09, which control the peripheral (Table 2). Two further addresses, 0x0E and 0x0F, do not store data but return the port input status when read. Four virtual addresses, 0x0A-0x0D, allow more than one register to be written with the same data to simplify software. The RAM register provides 1 byte of memory that can be used for any purpose. The no-op address, 0x20, causes no action when written or read, and is used as a dummy register when accessing one MAX7317 out of multiple cascaded devices. Initial Power-Up On power-up, all control registers are reset (Table 2). Power-up status sets I/O ports P0 to P9 high impedance, and puts the device into shutdown mode. RAM Register The RAM register provides a byte of memory that can be used for any purpose. 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection The 10 registers, 0x00 through 0x09, control an I/O port each (Table 4). Four pseudo-register addresses, 0x0A through 0x0D, allow groups of outputs to be set to the same value with a single command by writing the same data to multiple output registers. Serial Interface The MAX7317 communicates through an SPIcompatible 4-wire serial interface. The interface has three inputs: clock (SCLK), chip select (CS), and data in (DIN), and one output, data out (DOUT). CS must be low to clock data into or out of the device, and DIN must be stable when sampled on the rising edge of SCLK. DOUT is stable on the rising edge of SCLK. SCLK and DIN can be used to transmit data to other peripherals. The MAX7317 ignores all activity on SCLK and DIN except when CS is low. Note that the SPI protocol expects DOUT to be high impedance when the MAX7317 is not being accessed; DOUT on the MAX7317 is never high impedance. Go to www.maximintegrated.com/an1879 for ways to convert the MAX7317 to tri-state, if required. Control and Operation Using the 4-Wire Interface Controlling the MAX7317 requires sending a 16-bit word. The first byte, D15 through D8, is the command, and the second byte, D7 through D0, is the data byte (Table 5). GPIO Port Direction Configuration The 10 I/O ports P0 through P9 can be configured to any combination of inputs and outputs. Ports withstand 7V independent of the MAX7317's supply voltage, whether used as inputs or outputs. Configure a port as an input by setting its output register to 0x01, which sets the port output high impedance (Table 4). Input Port Registers DATA FROM SHIFT REGISTER WRITE PULSE Q OUTPUT PORT REGISTER DATA I/O PIN Q CK N GND INPUT PORT REGISTER Q D Output Registers www.maximintegrated.com D FF Reading an input port register returns the logic levels at the I/O port pins. The input port registers are read only. A write to an input port register is ignored. The MAX7317 uses one 8-bit register to control each output port (Table 4). Each port can be configured as an input or open-drain output. Write 0x00 to the output register to set the port as a logic-low output, or 0x01 to set the port as a logic-high output or logic input. OUTPUT PORT REGISTER FF READ PULSE INPUT PORT REGISTER DATA CK Figure 1. Simplified Schematic of I/O Ports Maxim Integrated 5 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Table 1. Register Address Map COMMAND ADDRESS D15 D14 D13 D12 D11 D10 D9 D8 CODE (hex) Port P0 output level R/W 0 0 0 0 0 0 0 0x00 Port P1 output level R/W 0 0 0 0 0 0 1 0x01 Port P2 output level R/W 0 0 0 0 0 1 0 0x02 Port P3 output level R/W 0 0 0 0 0 1 1 0x03 Port P4 output level R/W 0 0 0 0 1 0 0 0x04 Port P5 output level R/W 0 0 0 0 1 0 1 0x05 Port P6 output level R/W 0 0 0 0 1 1 0 0x06 Port P7 output level R/W 0 0 0 0 1 1 1 0x07 Port P8 output level R/W 0 0 0 1 0 0 0 0x08 Port P9 output level R/W 0 0 0 1 0 0 1 0x09 0 0 0 1 0 1 0 0x0A 0 0 0 1 0 1 1 0x0B 0 0 0 1 1 0 0 0x0C 0 0 0 1 1 0 1 0x0D REGISTER Write ports P0 through P9 with same output level 0 Read port P0 output level 1 Write ports P0 through P3 with same output level 0 Read port P0 output level 1 Write ports P4 through P7 with same output level 0 Read port P4 output level 1 Write ports P8 or P9 with same output level 0 Read port P8 output level 1 Read ports P7 through P0 inputs 1 0 0 0 1 1 1 0 0x0E Read ports P9 and P8 inputs 1 0 0 0 1 1 1 1 0x0F RAM R/W 0 0 1 0 0 1 1 0x13 No-op R/W 0 1 0 0 0 0 0 0x20 Factory reserved; do not write to this register R/W 1 1 1 1 1 0 1 0x7D Table 2. Initial Power-Up Register Status REGISTER DATA POWER-UP CONDITION ADDRESS CODE (hex) D7 D6 D5 D4 D3 D2 D1 D0 Port P0 output level Port 0 high impedance 0x00 1 1 1 1 1 1 1 1 Port P1 output level Port 1 high impedance 0x01 1 1 1 1 1 1 1 1 Port P2 output level Port 2 high impedance 0x02 1 1 1 1 1 1 1 1 Port P3 output level Port 3 high impedance 0x03 1 1 1 1 1 1 1 1 Port P4 output level Port 4 high impedance 0x04 1 1 1 1 1 1 1 1 Port P5 output level Port 5 high impedance 0x05 1 1 1 1 1 1 1 1 Port P6 output level Port 6 high impedance 0x06 1 1 1 1 1 1 1 1 Port P7 output level Port 7 high impedance 0x07 1 1 1 1 1 1 1 1 Port P8 output level Port 8 high impedance 0x08 1 1 1 1 1 1 1 1 Port P9 output level Port 9 high impedance 0x09 1 1 1 1 1 1 1 1 0x00 0x13 0 0 0 0 0 0 0 0 REGISTER RAM www.maximintegrated.com Maxim Integrated 6 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Connecting Multiple MAX7317s to the 4-Wire Bus Multiple MAX7317s can be interfaced to a common SPI bus by connecting DIN inputs together, SCLK inputs together, and providing an individual CS per the MAX7317 device (Figure 2). This connection works regardless of the configuration of DOUT/OSC, but does not allow the MAX7317s to be read. Table 3. Input Ports Register REGISTER R/W ADDRESS CODE (hex) Read input ports P7-P0 1 Read input ports P9, P8 1 REGISTER DATA D7 D6 D5 D4 D3 D2 D1 D0 0X0E Port P7 Port P6 Port P5 Port P4 Port P3 Port P2 Port P1 Port P0 0X0F 0 0 0 0 0 0 Port P9 Port P8 Table 4. Output Registers Format REGISTER R/W ADDRESS CODE (hex) REGISTER DATA BINARY D7 D6 D5 D4 D3 D2 D1 Output P0 level and PWM D0 hex Port P0 level -- MSB Port P0 is open-drain logic low -- 0 0 0 0 0 0 0 LSB 0 0x00 0 0 0 0 0 0 0 1 0x01 0x00 Port P0 is open-drain logic high (high impedance without external pullup) or logic input -- Port P1 level -- 0x01 MSB Port P1 level LSB Port P2 level -- 0x02 MSB Port P2 level LSB Port P3 level -- 0x03 MSB Port P3 level LSB Port P4 level --- 0x04 MSB Port P4 level LSB Port P5 level -- 0x05 MSB Port P5 level LSB Port P6 level -- 0x06 MSB Port P6 level LSB Port P7 level -- 0x07 MSB Port P7 level LSB Port P8 level -- 0x08 MSB Port P8 level LSB Port P9 level -- 0x09 MSB Port P9 level LSB Writes ports P0 through P9 with same level 0 MSB Ports P0 through P9 level LSB Reads port P0 level 1 MSB Port P0 level LSB Writes ports P0 through P3 with same level 0 MSB Ports P0 through P3 level LSB Reads port P0 level 1 MSB Port P0 level LSB Writes ports P4 through P7 with same level 0 MSB Ports P4 through P7 level LSB Reads port P4 level 1 MSB Port P4 level LSB Write ports P8 and P9 with same level 0 MSB Ports P8, P9 level LSB Read port P8 level 1 MSB Port P8 level LSB www.maximintegrated.com 0x0A 0x0B 0x0C 0x0D 0x00 or 0x01 Maxim Integrated 7 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Alternatively, MAX7317s can be daisy-chained by connecting the DOUT of one device to the DIN of the next, and driving SCLK and CS lines in parallel (Figure 3). This connection allows the MAX7317s to be read. Data at DIN propagates through the internal shift registers and appears at DOUT 15.5 clock cycles later, clocked out on the falling edge of SCLK. When sending commands to daisy-chained MAX7317s, all devices are accessed at the same time. An access requires (16 x n) clock cycles, where n is the number of MAX7317s connected together. The serial interface speed (maximum SCLK) is limited to 10MHz when multiple devices are daisy-chained due to the DOUT propagation delay and DIN setup time. If fewer or greater than 16 bits are clocked into the MAX7317 between taking CS low and taking CS high again, the MAX7317 stores the last 16 bits received, including the previous transmission(s). The general case is when n bits (where n > 16) are transmitted to the MAX7317. The last bits comprising bits {n-15} to {n}, are retained, and are parallel loaded into the 16-bit latch as bits D15 to D0, respectively (Figure 6). The MAX7317 is written to using the following sequence (Figure 5): 2) Take CS low. This enables the internal 16-bit shift register. 1) Take SCLK low. 3) Clock 16 bits of data into DIN, D15 first to D0 last. D15 is high, indicating a read command and bits D14 through D8 contain the address of the register to read. Bits D7 to D0 contain dummy data, which is discarded. 2) Take CS low. This enables the internal 16-bit shift register. 3) Clock 16 bits of data into DIN, D15 first to D0 last, observing the setup and hold times. Bit D15 is low, indicating a write command. 4) Take CS high (either while SCLK is still high after clocking in the last data bit, or after taking SCLK low). 5) Take SCLK low (if not already low). Reading Device Registers Any register data within the MAX7317 can be read by sending a logic high to bit D15. The sequence is: 1) Take SCLK low. 4) Take CS high (either while SCLK is still high after clocking in the last data bit, or after taking SCLK low). Positions D7 through D0 in the shift register are now loaded with the register data addressed by bits D15 through D8. 5) Take SCLK low (if not already low). 6) Issue another read or write command, and examine the bit stream at DOUT; the second 8 bits are the contents of the register addressed by bits D14 through D8 in step 3. Table 5. Serial-Data Format D15 D14 R/W MSB D13 D12 D11 D10 D9 ADDRESS D8 D7 LSB MSB D6 D5 D4 D3 DATA D2 D1 D0 LSB CS3 CS2 C MAX7317 CS2 MAX7317 CS1 CS1 MOSI DIN DIN DIN SCLK SCLK SCLK SCLK CS3 MAX7317 Figure 2. MAX7317 Multiple CS Connection www.maximintegrated.com Maxim Integrated 8 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection MOSI DIN CS C CS SCLK DOUT DOUT DIN CS MAX7317 SCLK DOUT DIN CS MAX7317 MAX7317 SCLK SCLK MISO Figure 3. MAX7317 Daisy-Chain Connection CS tCSW tCL tCP tCH tCSS tCSH SCLK tDS tDH DIN D15 D14 D1 D0 tDO DOUT D15 Figure 4. Timing Diagram CS SCLK DIN D15 =0 D14 D13 D12 D11 D10 D9 D8 D7 D6 DOUT D5 D4 D3 D2 D1 D0 D15 = 0 . Figure 5. 16-Bit Write Transmission to the MAX7317 www.maximintegrated.com Maxim Integrated 9 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection CS SCLK DIN BIT 1 BIT 2 DOUT N-15 N-31 N-14 N-13 N-12 N-11 N-10 N-9 N-8 N-7 N-30 N-29 N-28 N-27 N-26 N-25 N-24 N-23 N-6 N-5 N-4 N-3 N-2 N-1 N N-22 N-21 N-20 N-19 N-18 N-17 N-16 . Figure 6. Transmission of More than 16 Bits to the MAX7317 Applications Information Hot Insertion The I/O ports P0-P9 remain high impedance with up to 8V asserted on them when the MAX7317 is powered down (V+ = 0V). The MAX7317 can therefore be used in hot-swap applications. SPI Routing Considerations The MAX7317's SPI interface is guaranteed to operate at 26Mbps on a 2.5V supply, and on a 3.3V supply typically operates at 35Mbps. This means that transmission line issues should be considered when the interface connections are longer than 100mm, particularly with higher supply voltages. Avoid running long adjacent tracks for SCLK, DIN, and CS without interleaving GND traces; otherwise, the signals may cross-couple, giving false clock or chip-select transitions. Ringing may manifest itself as communication issues, often intermittent, typically due to double clocking caused by ringing at the SCLK input. Fit a 1k to 10k parallel termination resistor to either GND or V+ at the DIN, SCLK, and CS inputs to damp ringing for moderately long interface runs. Use line-impedance-matching terminations when making connections between boards. improve noise immunity in applications where power consumption is less critical, or where a faster rise time is needed for a given capacitive load. Power-Supply Considerations The MAX7317 operates with a power-supply 2.25V to 3.6V. Bypass the power supply to a 0.047F ceramic capacitor as close to the possible. For the TQFN version, connect the exposed pad to GND. Chip Information PROCESS: BiCMOS Pin Configurations (continued) TOP VIEW SCLK 1 www.maximintegrated.com + 16 V+ 15 DIN CS 2 P0 3 P1 4 MAX7317AEE 14 DOUT 13 P9 P2 5 12 P8 P3 6 11 P7 P4 7 10 P6 9 GND 8 Output-Level Translation The open-drain output architecture allows the ports to level translate the outputs to higher or lower voltages than the MAX7317 supply. An external pullup resistor can be used on any output to convert the highimpedance logic-high condition to a positive voltage level. The resistor can be connected to any voltage up to 7V. When using a pullup on a constant-current output, select the resistor value to sink no more than a few hundred A in logic-low condition. This ensures that the current-sink output saturates close to GND. For interfacing CMOS inputs, a pullup resistor value of 220k is a good starting point. Use a lower resistance to voltage of GND with device as underside P5 QSOP Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 16 QSOP E16+4 21-0055 90-0167 16 TQFN-EP T1633+4 21-0136 90-0031 Maxim Integrated 10 MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 2 4/05 -- 3 5/14 No /V OPNs; removed automotive reference from Applications section; updated Packaging Information 1 4 4/15 Updated Benefits and Features section 1 DESCRIPTION 1-17 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated's website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. (c) 2015 Maxim Integrated Products, Inc. 11 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: MAX7317AEE+ MAX7317AEE+T MAX7317ATE+ MAX7317ATE+T