W83L761G WINBOND H/W MONITORING IC W83L761G Preliminary Table of Contents1. GENERAL DESCRIPTION ......................................................................................................... 1 2. FEATURES ................................................................................................................................. 1 3. KEY SPECIFICATIONS .............................................................................................................. 2 4. BLOCK DIAGRAM ...................................................................................................................... 2 5. PIN CONFIGURATION ............................................................................................................... 3 6. PIN DESCRIPTION..................................................................................................................... 3 7. FUNCTIONAL DESCRIPTION.................................................................................................... 4 8. 9. 7.1 General Description ........................................................................................................... 4 7.2 Access Interface ................................................................................................................ 4 7.3 Temperature Measurement Machine ................................................................................ 5 CONTROL AND STATUS REGISTER ....................................................................................... 6 8.1 Configuration Register (Write Only)................................................................................... 6 8.2 Temperature Register Return Format (Read at Normal Mode, Read Only) ..................... 6 8.3 Manufacturer's / Device ID Register Return Format (Read at Power-Down Mode, Read Only) .. 6 ELECTRICAL CHARACTERISTIC ............................................................................................. 7 9.1 Absolute Maximum Ratings ............................................................................................... 7 9.2 DC Characteristics............................................................................................................. 7 9.3 AC Characteristics ............................................................................................................. 7 10. THE TOP MARKING................................................................................................................... 9 11. PACKAGE SPECIFICATION .................................................................................................... 10 12. APPLICATION CIRCUITS ........................................................................................................ 11 -I- Publication Release Date: April 18, 2005 Revision 1.0 W83L761G Preliminary 1. GENERAL DESCRIPTION W83L761G is a hardware monitoring IC with high temperature accuracy, low-power consumption, and SPI (Serial Peripheral Interface) interface. W83L761G has an on-chip thermal sensor and an 8-bits ADC (Analog to Digital Converter) to convert the monitored temperature values. The temperature resolution and accuracy is 0.5 C and 3 C, respectively, and the operation temperature is from -20C to + 120C. W83L761G is available in SOT23-5 package. The working voltage ranges from 3V to 5.5V. Small package dimension, 2.9mm x 2.8mm (including the pin length), low power consumption and simple SPI interface make W83L761G easy to use in every application filed. 2. FEATURES Monitoring Items - Temperature * Measure the temperature with high accuracy. * One on-chip thermal sensor. General * Interface: SPI control. * 3V~5.5V VCC operation. Package * 5-pin SOT-23-5. * Dimension: 2.9mm x 2.8mm. -1- Publication Release Date: April 18, 2005 Revision 1.0 W83L761G Preliminary 3. KEY SPECIFICATIONS Monitoring temperature range and accuracy: -20 C ~ +120 C 3C(@70C) Supply voltage 3V~5.5V Operating supply current 3V: 2 mA typ. 5V: 2.8 mA typ. Power down supply current 3V: 300 uA typ. 5V: 900 uA typ. ADC resolution 8 Bits 4. BLOCK DIAGRAM GND W83L761G SI/O CS# Serial Peripheral Interface Temperature Register Control Logic 8-Bit ADC Vcc -2- SC W83L761G Preliminary 5. PIN CONFIGURATION Vcc SC 5 4 761G 1 2 3 CS# GND SI/O 6. PIN DESCRIPTION I/O12ts INts TTL level and schmitt trigger with 12 mA source-sink capability TTL level input pin and schmitt trigger PIN NAME NO PIN TYPE CS# 1 IN ts GND 2 - SI/O 3 I/O 12ts SC 4 IN ts VCC 5 Power DESCRIPTION Chip select input from Controller. System ground. Slave input/output - Serial bus bidirectional data line - from and to Controller. Slave clock from controller. 3.0V ~ 5.5 V power supply. Bypass with 0.1 F ceramic capacitors. -3- Publication Release Date: April 18, 2005 Revision 1.0 W83L761G Preliminary 7. FUNCTIONAL DESCRIPTION 7.1 General Description W83L761G is a hardware monitoring IC with high temperature accuracy. W83L761G will be accessed by SPI (Serial Peripheral Interface) interface. An 8-bit analog-to-digital converter (ADC) is built inside W83L761G for monitored temperature converting. Shutdown mode is enabled by writing XXFF to W83L761G, and will always output 800Fh. 7.2 Access Interface W83L761G acts as a slave device on SPI compatible bus. CS# acts as the trigger of the W83L761G. W83L761G would not response to the serial interface bus unless CS# acts low. SC is the serial clock issued by the host. The data is received at the rising edge of the SC, and transmitted at the falling edge of the SC. There are three kinds of access types. Figure 1 shows the first access type, continuous reading 8-bit frame from 761G. Here, "continuous" means the CS# does not de-asserted while reading out data. At the end of last bit, host must output high on CS# to terminate the cycle. This access type is used to readout W83L761G 8-bit temperature. 1 8 SC #CS SO SI/O Figure 1 Continuous Reading 8 bit frame The second access type is continuous reading 16-bit frame from W83L761G, and is illustrated in figure 2. After first byte readout, host will not de-assert CS#, but will continue to send SC until next byte is read out and then de-assert CS#. 1 8 1 8 SC SC #CS #CS SI/O SO Driver Figure 2 Continuous Reading 16 bit frame -4- Tri-state W83L761G Preliminary The last access type, used for host to issue shut-down command, is shown in figure 3. After reading 2 bytes temperature from W83L761G, host continues to send clock and 2 more bytes command. During all 4 bytes, the CS# never de-asserts. SCSC #CS #CS SI/O SO Host writes in commands Temperature readout from 761G Figure 3 Shutdown Control 7.3 Temperature Measurement Machine W83L761G temperature data format is 8-bit/10-bit complement. The 8-bit/10-bit temperature data can be obtained by reading the temperature register return format (section 8.2). The format of temperature data is shown in Table 1. TEMPERATURE 8-BIT DIGITAL OUTPUT 10-BIT DIGITAL OUTPUT 8-BIT BINARY 8-BIT HEX 10-BIT BINARY 10-BIT HEX +125C 0011,1110 3Eh 00,1111,1010 0FAh +25C 0000,1100 0Ch 00,0011,0010 032h +1C 0000,0000 00h 00,0000,0010 002h - - 00,0000,0001 001h +0C 0000,0000 00h 00,0000,0000 000h -0.5C - - 11,1111,1111 3FFh -1C 1111,1111 FFh 11,1111,1110 3FFh -25C 1111,0011 F3h 11,1100,1110 3CEh -55C 1110,0100 E4h 11,1001,0010 392h +0.5C Table 1 -5- Publication Release Date: April 18, 2005 Revision 1.0 W83L761G Preliminary 8. CONTROL AND STATUS REGISTER 8.1 Configuration Register (Write Only) (Selects shutdown or continuous conversion mode) D15 D14 D13 D12 D11 D10 D9 D8 X X X X X X X X D7 D6 D5 D4 D3 D2 D1 D0 Command D15-D0 set to XX FF hexes enables shutdown mode. D15-D0 set to XX 00 hexes enables continuous conversion mode. Note: Setting D15-D0 to any other values may place the W83L761G into a manufacturer's test mode. These test modes are used for Winbond production testing only. 8.2 Temperature Register Return Format (Read at Normal Mode, Read Only) D15 D14 D13 D12 D11 D10 D9 D8 MSB Bit8 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 D7 D6 D5 D4 D3 D2 D1 D0 Bit1 Bit0 0 0 0 0 1 1 D15-D6: Temperature data. One LSB=0.5 C. Twos complement format D5-D2: Logic 0 will be output on SI/O. D1-D0: Logic 1 will be output on SI/O. 8.3 Manufacturer's / Device ID Register Return Format (Read at Power-Down Mode, Read Only) D15 D14 D13 D12 D11 D10 D9 D8 1 0 0 0 0 0 0 0 D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 1 1 1 1 D15-D2: Manufacturer's / Device ID data. This register accessed whenever the W83L761G is in shutdown mode. D1-D0: Logic 1 will be output on SI/O. -6- W83L761G Preliminary 9. ELECTRICAL CHARACTERISTIC 9.1 Absolute Maximum Ratings PARAMETER Power Supply Voltage Input Voltage Operating Temperature Storage Temperature RATING UNIT -0.5 to 7.0 3 to 5.5 -20 to + 125 -50 to +150 V V C C Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. 9.2 DC Characteristics (Ta = 0 C to 70 C, VDD = 3.3V 10%, VSS = 0V) PARAMETER SYM. MIN. TYP. MAX. UNIT CONDITIONS I/O12ts - TTL level bi-directional pin with source-sink capability of 12 mA and schmitt-trigger level input Input Low Threshold Voltage Vt0.5 0.8 1.1 V VDD = 3.3 V Input High Threshold Voltage Vt+ 1.6 2.0 2.4 V VDD = 3.3 V Hysteresis VTH 0.5 1.2 V VDD = 3.3 V Output Low Voltage VOL 0.4 V IOL = 12 mA Output High Voltage VOH 2.4 V IOH = - 12 mA Input High Leakage ILIH +10 VIN = VDD A Input Low Leakage ILIL -10 VIN = 0V A INts - TTL level Schmitt-triggered input pin Input Low Threshold Voltage Vt0.5 0.8 1.1 V VDD = 3.3 V Input High Threshold Voltage Vt+ 1.6 2.0 2.4 V VDD = 3.3 V Hysteresis VTH 0.5 1.2 V VDD = 3.3 V Input High Leakage ILIH +10 VIN = VDD A Input Low Leakage ILIL -10 VIN = 0 V A 9.3 AC Characteristics PARAMETER SC (Clock) Period CS# to SC (Clock) High Set-Up Time CS# to Data Out (SO) Delay SC (Clock) Low to Data Out (SO) Delay CS# High to Data Out (SO) TRI-STATE SC and SI/O Rise Time SC and SI/O Fall Time -7- SYMBOL TYP. UNITS T1 T2 T3 T4 T5 TR TF 0.16 100 70 70 200 10 10 s ns ns ns ns ns ns Publication Release Date: April 18, 2005 Revision 1.0 W83L761G Preliminary SC (Clock) High to Data in (SI) Hold Time Data In (SI) Set-Up Time to SC (Clock) High SC T2 T4 T6 T7 T1 50 30 TR T4 ns ns TF CS# T3 SO Data Output Timing Diagram SC SC #CS #CS t5 t5 SO SO T5 T5 TRI-STATE Data Output Timing Diagram SC SC t7 T7 #CS T7 t7 T6 t6 #CS SO SO -8- T6 t6 W83L761G Preliminary Data Input Timing Diagram 10. THE TOP MARKING The top marking of W83L761G W83L761G 2826978Y-61 443OB Left: Winbond logo 1st line: Winbond logo and the type number: W83L761G 2nd line: Tracking code 2 826978Y-61 3rd line: Tracking code 443 O B 443: packages made in '04, week 43 O: assembly house ID; A means ASE, S means SPIL, O means OSE B: IC revision -9- Publication Release Date: April 18, 2005 Revision 1.0 W83L761G Preliminary 11. PACKAGE SPECIFICATION SOT23-5 D e1 HE E b e Y L L1 - 10 - W83L761G Preliminary 12. APPLICATION CIRCUITS 68HC11 5V Micro 1 GPI/O1 GPI/O2 MISO G ND R1 10k 3 4 /CS V+ 5 C1 0.1u SI/O SC GND 2 W83761 SC 5V Intel (R) 168 GPI/O RXD TXD G ND 1 3 4 /CS V+ 5 C1 0.1u SI/O SC GND 2 W83761 Title Size A Date: - 11 - Winbond Hardware Document W83761 Application Circuit Monday, November Rev 0.2 24, Sheet Publication Release Date: April 18, 2005 Revision 1.0 1 of 1 W83L761G Preliminary REVISION HISTORY VERSION DATE PAGE 1.0 April 18, 2005 12 DESCRIPTION ADD Important Notice Important Notice Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales. Headquarters Winbond Electronics Corporation America Winbond Electronics (Shanghai) Ltd. No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5665577 http://www.winbond.com.tw/ 2727 North First Street, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-5441798 27F, 2299 Yan An W. Rd. Shanghai, 200336 China TEL: 86-21-62365999 FAX: 86-21-62365998 Taipei Office Winbond Electronics Corporation Japan Winbond Electronics (H.K.) Ltd. 9F, No.480, Rueiguang Rd., Neihu District, Taipei, 114, Taiwan, R.O.C. TEL: 886-2-8177-7168 FAX: 886-2-8751-3579 7F Daini-ueno BLDG, 3-7-18 Shinyokohama Kohoku-ku, Yokohama, 222-0033 TEL: 81-45-4781881 FAX: 81-45-4781800 Unit 9-15, 22F, Millennium City, No. 378 Kwun Tong Rd., Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064 Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners. - 12 -