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19-2920; Rev 3; 10/09
KIT ATION EVALU E L B AVAILA
www.DataSheet4U.com
±1°C, SMBus-Compatible Remote/Local Temperature Sensor with Overtemperature Alarm
General Description
The MAX6642 precise, two-channel digital temperature sensor accurately measures the temperature of its own die and a remote PN junction and reports the temperature data over a 2-wire serial interface. The remote PN junction is typically a substrate PNP transistor on the die of a CPU, ASIC, GPU, or FPGA. The remote PN junction can also be a discrete diode-connected smallsignal transistor. The 2-wire serial interface accepts standard system management bus (SMBus™), Write Byte, Read Byte, Send Byte, and Receive Byte commands to read the temperature data and to program the alarm thresholds.
MAX6642 Datasheet
