MAX6640 Datasheet | Maxim Integrated

19-3344; Rev 2; 10/08 KIT ATION EVALU LE B A IL A AV .. 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller General Description The MAX6640 monitors its own temperature and one external diode-connected transistor or the temperatures of two external diode-connected transistors, typically available in CPUs, FPGAs, or GPUs. The 2-wire serial interface accepts standard System Management Bus (SMBus TM ) write byte, read byte, send byte, and receive byte mands to read the temperature data and program the alarm thresholds. Temperature data can be read at any time over the SMBus, and three programmable alarm outputs can be used to generate interrupts,...