W83L771W

W 83L771W/W83L771G W inbond H /W Monitoring IC W83L771W/ W83L771G W83L771W Data Sheet Revision History PAGES DATES VERSION VERSION ON WEB MAIN CONTENTS 1 2 3 4 5 n.a. n.a. n.a. 12/10/04 01/31/05 03/31/06 0.5 0.6 0.7 NA NA NA First Release Add lead-free package version Correct section 8.6 conversion rate; correct section 9.1 operating temperature; add application circuit Please note that all data and specifications are subject to change without notice. All the trademarks of products and companies mentioned in this data sheet belong to their respective owners. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. 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. -I- Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G Table of Contents1. 2. GENERAL DESCRIPTION ......................................................................................................... 1 FEATURES ................................................................................................................................. 1 2.1 2.2 2.3 3. 4. 5. 6. 7. Monitoring Items - Temperature ..................................................................................... 1 General ........................................................................................................................... 1 Package .......................................................................................................................... 1 KEY SPECIFICATIONS .............................................................................................................. 2 BLOCK DIAGRAM ...................................................................................................................... 2 PIN CONFIGURATION ............................................................................................................... 2 PIN DESCRIPTION..................................................................................................................... 3 FUNCTIONAL DESCRIPTION.................................................................................................... 4 7.1 7.2 7.3 General Description ........................................................................................................ 4 Access Interface ............................................................................................................. 4 ALERT Output Mode..................................................................................................... 5 7.3.1 7.3.2 7.3.3 ALERT Output Comparator Mode .................................................................................5 ALERT Output Interrupt Mode.......................................................................................6 ALERT Output SMBus ALERT Mode ............................................................................7 7.4 7.5 T _ CRIT _ A Output and T_CRIT flags ......................................................................... 8 Measured Temperature Data Format ............................................................................. 9 7.5.1 7.5.2 Measure Remote Temperature Data Format....................................................................9 Measure Local Temperature Data Format........................................................................9 7.6 7.7 7.8 8. Digital Filter ................................................................................................................... 10 Fault Detect................................................................................................................... 11 Conversion Rate and Moving Average ......................................................................... 11 CONTROL AND STATUS REGISTER ..................................................................................... 12 - II - Publication Release Date: March 06 Revision 0.7 W83L771W/ W83L771G 8.1 8.2 W83L771W/G Registers ............................................................................................... 12 Data Format of Temperature Registers (LT, RTHB, RTLB, LHS, RHSHB, RHSLB, LLS, RLSHB, RLSLB)........................................................................................................................ 13 8.3 8.4 8.5 8.6 8.7 9. Status Register (SR)..................................................................................................... 13 Configuration Register (C) ............................................................................................ 14 T_CRIT Hysteresis Register (TH)................................................................................. 14 Conversion Rate Register (CR) .................................................................................... 14 Filter and Alert Configure Register (RDTF) .................................................................. 15 ELECTRICAL CHARACTERISTIC ........................................................................................... 16 9.1 9.2 9.3 Absolute Maximum Ratings .......................................................................................... 16 DC Characteristics ........................................................................................................ 16 AC Characteristics ........................................................................................................ 17 10. 11. 12. THE TOP MARKING................................................................................................................. 18 PACKAGE SPECIFICATION .................................................................................................... 19 APPLICATION CIRCUITS ........................................................................................................ 20 - III - Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 1. GENERAL DESCRIPTION W83L771W/G, a 2-channel temperature sensor with a 2-wire System Management Bus (SMBusTM) serial interface, is Winbond hardware monitoring IC specifically designed for notebook applications. W83L771W/G has an on-chip thermal sensor and a remote temperature sensor input with high accuracy. The remote temperature sensor input could be connected to thermal diode or transistor such as 2N3904. A 10-bit plus sign ADC (Analog to Digital Converter) with 0.125°C resolutions is built inside W83L771W/G to convert the monitored temperature value. W83L771W/G is a high temperature accuracy, low-power consumption, SMBusTM serial interface IC, which is available in 8-pin, TSSOP package, and the working voltage is 3.3 V ±10%. 2. FEATURES 2.1 Monitoring Items - Temperature Measure the temperature with high accuracy, up to +/- 1℃ accuracy. One on-chip thermal sensor One remote temperature sensor input 2.2 General Interface: SMBusTM serial interface 3.3V±10% VCC operation 10 bit plus sign remote temperature data format, 0.125°C resolution Programmable offset register for various thermal diodes ALERT Output supports SMBusTM 2.0 protocol Programmable Temperature High/Low limit and hysteresis for T _ CRIT _ A output SMBusTM 2.0 compatible interface, supports TIMEOUT ALERT and 2.3 Package 8-pin TSSOP -1- Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 3. KEY SPECIFICATIONS Local temperature range and accuracy Remote temperature range and accuracy Supply voltage Operating supply current ADC resolution 0°C to +80°C ± 3°C(@70°C) -30°C to +127°C ± 1°C(@70°C) 3.3V ±10% 1 mA typ. 11 Bits 4. BLOCK DIAGRAM VDD SMBData I Control Logic Command Coder/DeCoder REGISTER BANK (Local/Remote) Temperature Registers Configuration Registers Status Registers Limit/Critical (Hysteresis) Registers SMBus SMBCLK xI DPLUS DMINUS ALERT OVER TEMPERATURE COMPARATOR Sensor Circuit ADC Fault Queue T_CRIT_A 5. PIN CONFIGURATION VD D DPLUS DM INUS T_ C R IT_ A 1 2 3 4 . W 83L771W 8 7 6 5 SM B C LK SM B Data ALER T GND -2- Publication Release Date: March 06 Revision 0.7 W83L771W/G 6. PIN DESCRIPTION PIN TYPE PIN ATTRIBUTE I/OD12ts OD12 INts AIN TTL level and schmitt trigger open drain output with 12 mA sink capability Open-drain output pin with 12 mA sink capability TTL level input pin and schmitt trigger Input pin (Analog) PIN NAME NO PIN TYPE DESCRIPTION VDD DPLUS DMINUS 1 2 3 4 5 6 7 POWER AIN AIN OD12 GROUND OD12 I/OD12 DC power supply, voltage input 3.3V±10%. Connect to Thermal Diode Anode. Connect to Thermal Diode Cathode. T_CRIT alarm output, for interrupt or shutdown control. Power supply ground Alarm output, for interrupt control. Digital I/O (Open drain). SMBus bidirectional serial data. Requires SMBus pull-up. Digital Input (Open drain). SMBus serial clock input. Requires SMBus pull-up. T _ CRIT _ A GND ALERT SDA SCL 8 INt s -3- Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 7. FUNCTIONAL DESCRIPTION 7.1 General Description The W83L771W/G provides one remote temperature sensor input which could be connected to remote thermistors, 2N3904 transistors, or CPU/GPU thermal diode, and one local on die thermal sensor to detect ambient temperature. The measured temperature is digitally compared with the value stored in the programmable High/Low limit Registers and T_CRIT registers. Any out-of-limit value could be detected by monitoring Status Register (SR). W83L771W/G also supports SMBusTM 2.0 ALARM protocol and TIMEOUT. The data format of remote temperature is 10 bit plus sign combined with two 8 bits wide SMBusTM access interface. The real temperature equals the measured temperature plus or minus offset value. Offset value could be set in offset registers. The date format of the offset registers is also the same as the data format of remote temperature. 7.2 Access Interface W83L771W/G provides SMBus serial interface to read/write internal registers, and the SMBus address for read and write is 10011001b and 10011000b, respectively. The first serial bus access timing is shown as follows: (a) Serial bus write to internal address register followed by the data byte 0 SCL SDA Start By M aster 7 8 0 7 8 1 0 0 1 0 1 1 0 0 0 1 R/W Ack Ack by by 785R 771W D7 D6 D5 D4 D3 D2 D1 D0 Ack Ack by by 785R 771W Frame 1 Serial Bus Address Byte 0 Frame 2 Internal Index Register Byte 7 8 SCL(Continued) SDA(Continued) D7 D6 D5 D4 D3 D2 D1 D0 Ack Ack by by by 784R 785R 771W Stop by M aster Frame 3 Data Byte -4- Publication Release Date: March 06 Revision 0.7 W83L771W/G (b) Serial bus read form internal address register followed by the data byte 0 7 8 0 7 8 SCL SDA Start By M aster 1 0 0 1 0 1 1 0 0 0 1 R/W Ack ack by by 771W 785R D7 D6 D5 D4 D3 D2 D1 D0 Ack ack by by 771W 785R Frame 1 Serial Bus Address Byte 0 1 2 3 4 5 Frame 2 Internal Index Register Byte 7 8 0 1 2 3 4 5 6 6 7 8 SCL(Continued) SDA(Continued) 1 0 0 1 0 1 1 0 0 0 1 R/W Ack ack by by 771W 785R D7 D6 D5 D4 D3 D2 by D1 D0 784R Ack Stop by no ack aster Ack by M by 785R M aster Frame 3 Serial Bus Byte Frame 4 Data Byte 7.3 ALERT Output Mode W83L771W/G ALERT pin is an active-low open-drain output pin which is triggered when measured temperature exceeds the limitation defined in limit registers. There are three types of ALERT output mode: ALERT output comparator mode, ALERT output interrupt mode, and ALERT output SMBus ALERT mode. Each kind of ALERT output mode could best serve the system designer. 7.3.1 ALERT Output Comparator Mode Fig. 7.3.1 shows the mechanism of ALERT output comparator mode. Setting Filter and Alert Configure Register, or register address BFh, D0 to 1 could enable ALERT output comparator mode. Under this mode, the ALERT pin will be alerted if the monitored temperature is out-of -limit and the ALERT pin keeps low until the temperature goes back to the target range. This mode is not power on default setting. -5- Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G High Limit Measured Tmperature By W83L771W W83L771W ALERT Pin W83L771W High Limit Status Fig. 7.3.1 Response of ALERT output comparator mode 7.3.2 ALERT Output Interrupt Mode Fig. 7.3.2 shows the mechanism of ALERT output interrupt mode. Under this mode, W83L771W/G will set the ALERT mask bit D7 of Configuration Register during a read of the Status Register if any flag in Status Register is set, with the exception of Busy flag D7 and OPEN flag D2. This prevents further ALERT triggering until the master has reset the ALERT mask bit, at the end of the interrupt service routine. The Status Register flags are cleared only upon a read command from the master and will be re-alerted at the end of the next conversation if the measured temperature still exceeds limitation. The flags in Status Register will be cleared again waiting for next read command. -6- Publication Release Date: March 06 Revision 0.7 W83L771W/G High Limit Measured Tmperature By W83L771W ALERT mask set in response to reading of status register by master W83L771WALERT Pin End of Temperature conversion W83L771WHigh Limit Status Fig. 7.3.2 Response of ALERT output interrupt mode 7.3.3 ALERT Output SMBus ALERT Mode Fig. 7.3.3 shows the mechanism of ALERT output SMBus ALERT mode. Under this mode, the ALERT output of W83L771W/G is connected to SMBus alert line which has more than one device connected to it. By using such implementation, SMBus ALERT protocol can assist the master in resolving which slave generates an interrupt. When measured temperature exceeds the limitation, the ALERT pin is pulled low and the corresponding alert flags in Status Register high. If there is no read command for Status Register and the ALERT mask bit will just be set when SMBus ALERT Response Address (ARA) occurs from master (Alert Response Address is 0001100) and W83L771W/G will generate itself address to master. If the temperature never exceeds the limitation, the latched ALERT pin can release by reset ALERT mask bit and the latched corresponding alert flags in Status Register can release by reading command for Status Register. -7- Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G High Limit Measured Tmperature By W83L771W ALERT mask set in response to Alert Response Address from master W83L771W ALERT Pin End of Temperature conversion W83L771W High Limit Status Fig. 7.3.3 Response of ALERT output interrupt mode 7.4 T _ CRIT _ A Output and T_CRIT flags T _ CRIT _ A Output pulls low when the measured temperature exceeds the critical temperature (T_CRIT) defined in 19h, and 20h for Remote, and Local T_CRIT set point, respectively. Once the T _ CRIT _ A Output pulls high, it will not be reset until measured temperature is lower than (T_CRIT － TH), where TH is Temperature Hysteresis. The Status Register will not be reset until it is read and the temperature conversion falls below the T_CRIT set point. Figure 7.4 shows this mechanism. T_CRIT Set Point TH Value T_CRIT - TH Measured Tmperature By W83L771W W83L771W T_CRIT_A Pin W83L771W T_CRIT Status * Fig. 7.4 Response of W83L771W Read Command for Status Register T _ CRIT _ A output -8- Publication Release Date: March 06 Revision 0.7 W83L771W/G 7.5 Measured Temperature Data Format W83L771W/G can measure remote temperature with the resolution of 11-bit two’s complement format and local temperature with the resolution of 8-bit two’s complement format. 7.5.1 Measure Remote Temperature Data Format Table 7.5.1 shows remote temperature data with 11-bit two’s complement format. Table 7.5.1 Measured Remote Temperature Data Format TEMPERATURE 8-BIT DIGITAL OUTPUT HIGH BYTE 8-BIT DIGITAL OUTPUT LOW BYTE +127.875°C +25.750°C +2.250°C +1.125°C +0.000°C - 1.125°C - 2.250°C - 25.750°C - 128.875°C 0111,1111 0001,1001 0000,0010 0000,0001 0000,0000 1111,1111 1111,1110 1110,0111 1000,0000 111X,XXXX 110X,XXXX 010X,XXXX 001X,XXXX 000X,XXXX 111X,XXXX 110X,XXXX 010X,XXXX 001X,XXXX 7.5.2 Measure Local Temperature Data Format Table 7.5.2 shows local temperature data with 8-bit two’s complement format. Table 7.5.2 Measured Local Temperature Data Format TEMPERATURE 8-BIT DIGITAL OUTPUT +127°C +25°C +2°C +1°C +0°C - 1°C - 2°C - 25°C - 128°C 0111,1111 0001,1001 0000,0010 0000,0001 0000,0000 1111,1111 1111,1110 1110,0111 1000,0000 -9- Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 7.6 Digital Filter W83L771W/G provides three levels Digital Filter to suppress erroneous remote temperature readings due to noise. The register address to set digital filter is at Filter and Alert Configure Resister. If set bits = , then no filter is selected. If set bits = or , then filter level 1 is selected. If set bits = , then level 2 is selected. Figure 7.5.1 shows the step response of reading remote temperature with different filter level, and Figure 7.5.2 shows the impulse response. 5 0 Temperature (oC) 4 5 4 0 3 5 3 0 2 50 5 1 1 0 5 SAMPLE 2 0 2 5 No Filter Level Filter Level 1 Filter Level 2 Figure 7.5.1 Step Response of reading remote temperature 5 0 Temperature (oC) 4 5 4 0 3 5 3 0 2 50 5 1 1 0 5 SAMPLE 2 0 2 5 No Filter Level Filter Level 1 Filter Level 2 Figure 7.6.2 Impulse Response of reading remote temperature - 10 - Publication Release Date: March 06 Revision 0.7 W83L771W/G 7.7 Fault Detect Table 7.7 shows the response of Fault Detection if false connection of DPLUS and DMINUS occurs after power up. Except response of Table 7.7, if false connection takes place after power up Fault Detect, the OPEN flag will remain low and get a remote temperature -30℃, the lowest temperature W83L771W/G could measure. Table 7.7 response of Fault Detect CONNECTION (DPLUS, DMINUS) STATUS REGISTER BIT (OPEN) MEASURED REMOTE TEMPERATURE ALERT & T _ CRIT _ A PIN (VDD, Floating) (GND, Floating) (Floating, Floating) Shot 1 0 1 0 +128 ℃ - 128 ℃ +128 ℃ - 128 ℃ Pull Low Pull Low Pull Low Pull Low 7.8 Conversion Rate and Moving Average W83L771W/G provides an embedded moving average into conversion rate selection. The lower conversation rate can get more average times of measured remote temperature. Using an averaging temperature attains excellent noise rejection. - 11 - Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 8. CONTROL AND STATUS REGISTER 8.1 W83L771W/G Registers REGISTER NAME (HEX) READ ADDRESS (HEX) WRITE ADDRESS (HEX) POWER ON DEFAULT STATES BINARY / DECIMAL HEX Local Temperature (LT) Remote Temperature High Byte (RTHB) Status Register (SR) Configuration (C) Conversion Rate (CR) Local High Set point (LHS) Local Low Set point (LLS) Remote High Set point High Byte (RHSHB) Remote Low Set point High Byte (RLSHB) Remote Temperature Low Byte (RTLB) Remote Temperature Offset High Byte (RTOHB) Remote Temperature Offset Low Byte (RTOLB) Remote High Set point Low Byte (RHSLB) Remote Low Set point Low Byte (RLSLB) Remote T_CRIT Set point (RCS) Local T_CRIT Set point (LCS) T_CRIT Set point (TH) Remote Diode Temperature Filter (RDTF) Read Manufacturer’s ID (RMID) Read Die Revision (RDR) 00h 01h 02h 03h 04h 05h 06h 07h 08h 10h 11h 12h 13h 14h 19h 20h 21h BFh FEh FFh Read Only Read Only Read Only 09h 0Ah 0Bh 0Ch 0Dh 0Eh Read Only 11h 12h 13h 14h 19h 20h 21h BFh Read Only Read Only 0000,0000b / 00h 0000,0000b / 00h 0000,0000b / 00h 0000,0000b / 00h 0000,1000b / 08h 0100,0110b / 46h 0000,0000b / 00h 0100,0110b / 46h 0000,0000b / 00h 0000,0000b / 00h 0000,0000b / 00h 0000,0000b / 00h 0000,0000b / 00h 0000,0000b / 00h 0110,1110b / 6Eh 0101,0101b / 55h 0000,1010b / 0Ah 0000,0000b / 00h 0101,1100b / 5Ch 0000,0000b / 00h 0 0 0 0 8 70 0 70 0 0 0 0 0 0 110 85 10 0 92 0 - 12 - Publication Release Date: March 06 Revision 0.7 W83L771W/G 8.2 Data Format of Temperature Registers (LT, RTHB, RTLB, LHS, RHSHB, RHSLB, LLS, RLSHB, RLSLB) BIT VALUE REGISTER: LT, RTHB, LHS, RHSHB, LLS, RLSHB DATA FORMAT: TWO’S COMPLEMENT FORMAT D7 Sign D6 64 D5 32 D4 16 D3 8 D2 4 D1 2 D0 1 Unit: ℃ REGISTER: RTLB, RHSLB BIT VALUE DATA FORMAT: TWO’S COMPLEMENT FORMAT D7 0.5 D6 0.25 D5 0.125 D4 0 D3 0 D2 0 D1 0 D0 0 8.3 BIT Status Register (SR) FLAG NAME DESCRIPTION D7 D6 D5 D4 D3 D2 D1 D0 Busy LHIGH LLOW RHIGH RLOW OPEN RCRIT LCRIT If set to ‘1’ indicates ADC is busy converting. If set to ‘1’ indicates a measured Local Temperature Higher than Local High set point (High Limit). If set to ‘1’ indicates a measured Local Temperature lower than Local Low set point (Low Limit). If set to ‘1’ indicates a measured Remote Temperature higher than Remote High set point (High Limit). If set to ‘1’ indicates a measured Remote Temperature lower than Remote Low set point (Low Limit). If set to ‘1’ indicates a Remote Diode disconnect. If set to ‘1’ indicates a Remote Critical Temperature alarm. If set to ‘1’ indicates a Local Critical Temperature alarm. - 13 - Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 8.4 BIT Configuration Register (C) FLAG NAME DESCRIPTION D7 D6 D5 D4 ALERT mask If set to ‘1’ ALERT interrupts are masked. Reserved 0 Remote T _ CRIT _ A mask 0 Local T _ CRIT _ A mask 0 Reserved Reserved No definition and can be read out to 0. If set to ‘1’ Remote T _ CRIT _ A interrupts are masked. D3 D2 No definition and can be read out to 0. If set to ‘1’ Local T _ CRIT _ A interrupts are masked. D1 D0 No definition and can be read out to 0. Reserved 8.5 T_CRIT Hysteresis Register (TH) REGISTER: TH BIT MAXIMUM VALUE: 31 D7 0 D6 0 D5 0 D4 16 D3 8 D2 4 D1 2 D0 1 VALUE Unit: ℃ 8.6 Conversion Rate Register (CR) REGISTER: CR DEFAULT CONVERSION RATE: 16HZ BIT (DECIMAL) 0 1 2 3 4 5 6 7 CONVERSION 31.25 mHz 62.5 mHz 125 mHz 250 mHz 500 Hz RATE (32 Sec) (16 Sec) (8 Sec) (4 Sec) (2 Sec) BIT (DECIMAL) CONVERSION RATE 1 Hz 2 Hz 4 Hz (1 Sec) (0.5 Sec) (0.25 Sec) 8 8 Hz (125 mSec) 9 16 Hz (62.5 mSec) 10-255 Reserve - 14 - Publication Release Date: March 06 Revision 0.7 W83L771W/G 8.7 Filter and Alert Configure Register (RDTF) BIT COMMAND DESCRIPTION 0 Filter Level No definition and can be read out to 0. =: No Filter Selected = or : Filter Level 1 Selected =: Filter Level 2 Selected If set to ‘1’ ALERT Output Comparator mode is enabled. D0 ALERT Configure - 15 - Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 9. ELECTRICAL CHARACTERISTIC 9.1 Absolute Maximum Ratings PARAMETER RATING UNIT Power Supply Voltage Input Voltage Operating Temperature Storage Temperature 3.3 3 to 5.5 0 to + 70 -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 level input Input Low Threshold Voltage Vt0.5 0.8 Input High Threshold Voltage Vt+ 1.6 2.0 Hysteresis VTH 0.5 1.2 Output Low Voltage VOL Output High Voltage VOH 2.4 Input High Leakage ILIH Input Low Leakage ILIL capability of 12 mA and schmitt-trigger 1.1 2.4 0.4 +10 -10 V V V V V μA μA V VDD = 3.3 V VDD = 3.3 V VDD = 3.3 V IOL = 12 mA IOH = - 12 mA VIN = VDD VIN = 0V OD12 - Open-drain output pin with sink capability of 12 mA Output Low Voltage VOL 0.4 IOL = 12 mA OD48 - Open-drain output pin with sink capability of 48 mA Output Low Voltage INts VOL 0.4 V IOL = 48 mA - TTL level Schmitt-triggered input pin VtVt+ VTH ILIH ILIL 0.5 1.6 0.5 0.8 2.0 1.2 +10 -10 1.1 2.4 V V V μA μA VDD = 3.3 V VDD = 3.3 V VDD = 3.3 V VIN = VDD VIN = 0 V Input Low Threshold Voltage Input High Threshold Voltage Hysteresis Input High Leakage Input Low Leakage - 16 - Publication Release Date: March 06 Revision 0.7 W83L771W/G 9.3 AC Characteristics t SCL t tR R SCL t HD;SDA t SU;DAT t SU;STO SDA IN VALID DATA t HD;DAT SDA OUT Serial Bus Timing Diagra PARAMETER SYMBOL MIN. MAX. UNIT SCL clock period Start condition hold time Stop condition setup-up time DATA to SCL setup time DATA to SCL hold time SCL and SDA rise time SCL and SDA fall time t-SCL tHD;SDA tSU;STO tSU;DAT tHD;DAT tR tF 10 4.7 4.7 120 5 1.0 300 uS uS uS nS nS uS nS - 17 - Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 10. THE TOP MARKING The top marking of W83L771W W83L771W 2826978Y-61 449OB Left: Winbond logo 1st line: Winbond logo and the type number: W83L771W 2nd line: Tracking code 2 826978Y-61 3rd line: Tracking code 449 O B 449: packages made in '04, week 49 O: assembly house ID; A means ASE, S means SPIL, O means OSE B: IC revision The top marking of W83L771G W83L771G 2826978Y-61 449OB Left: Winbond logo 1st line: Winbond logo and the type number: W83L771G 2nd line: Tracking code 2 826978Y-61 3rd line: Tracking code 449 O B 449: packages made in '04, week 49 O: assembly house ID; A means ASE, S means SPIL, O means OSE B: IC revision - 18 - Publication Release Date: March 06 Revision 0.7 W83L771W/G 11. PACKAGE SPECIFICATION TSSOP 8L 3X3 MM^2 - 19 - Publication Release Date: March 31, 2006 Revision 0.7 W83L771W/G 12. APPLICATION CIRCUITS Please note that all data and specifications are subject to change without notice. All the trademarks of products and companies mentioned in this data sheet belong to their respective owner. - 20 - Publication Release Date: March 06 Revision 0.7 W83L771W/G 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. - 21 - Publication Release Date: March 31, 2006 Revision 0.7