MAX6636 Datasheet | Maxim Integrated

19-3004; Rev 0; 12/07 7-Channel Precision Temperature Monitor .. General Description - - - - - - - - - - Features Six Thermal-Diode Inputs Local Temperature Sensor 1°C Remote Temperature Accuracy (+60°C to +100°C) Temperature Monitoring Begins at POR for Fail Safe System Protection ALERT and OVERT Outputs for Interrupts, Throttling, and Shutdown STBY Input for Hardware Standby Mode Small, 20-Pin TSSOP Package 2-Wire SMBus Interface Penryn CPU-patible Pin- and Register-patible with MAX6689 The MAX6636 precision multichannel temperature sensor monitors its own temperature and the temperatures of up to six external diode-connected transistors. All temperature channels have programmable alert thresholds. Channels 1, 4, 5, and 6 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, OVERT and ALERT, assert corresponding to these bits in the status register. The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds. The MAX6636 is specified for a -40°C to +125°C operating temperature range and is available in a 20-pin TSSOP package. Applications Desktop puters Notebook puters Workstations Servers SMBus is a trademark of Intel Corp. Pin Configuration appears at end of data sheet. PART Ordering Information PINPACKAGE SLAVE ADDRESS PKG CODE MAX6636UP9A+ 20 TSSOP 1001 101 U20-2 Note: Device specified over the -40°C to +125°C temperature range. +Denotes lead-free package. Typical Application Circuit +3.3V CPU 1 2200p F 2 3 2200p F 4 5 2200p F 6 7 2200p F 8 9 2200p F 10 DXN5 DXN6 11 DXN4 DXP5 STBY 13 DXP6 12 2200p F GPU DXN3 DXP4 OVERT 15 N.C. 14 TO SYSTEM SHUTDOWN DXN2 DXP3 ALERT 17 VCC 16 INTERRUPT TO μP DXN1 DXP2 DXP1 GND 20 4.7kΩ...