TCM1617

EVALUATION KIT AVAILABLE TCM1617 SMBus Thermal Sensor with External Diode Input FEATURES s s s s s s s s s s Includes Internal External Sensing Capability Outputs Temperature as 8-Bit Digital Word Solid State Temperature Sensing; 1°C Resolution 3.0 – 5.5V Operating Range Independent Internal and External Threshold Set-Points With ALERT# Interrupt Output SMBus 2-Wire Serial Interface Up To Nine TCM1617s May Share the Same Bus Standby Mode for Low Standby Power Low Power ............................ 70µA (max) Operating ...................................... 10µA (max) Standby Mode 16-Pin Plastic QSOP Package GENERAL DESCRIPTION The TCM1617 is a serially programmable temperature sensor optimized for monitoring modern high performance CPUs with on-board integrated thermal diodes. Temperature data is converted from the CPU’s thermal diode outputs and made available as an 8-Bit digital word. Communication with the TCM1617 is accomplished via the standard System Management Bus (SMBus) commonly used in modern computer systems. This permits reading the current internal/external temperature, programming the threshold setpoints, and configuring the device. Additionally, an interrupt is generated on the ALERT# pin when temperature moves outside the preset threshold windows in either direction. A Standby command may be sent via the SMBus by signaling the STBY# input to activate the low-power Standby mode. Registers can be accessed while in Standby mode. Address selection inputs allow ...