LM95233

www.DataSheet4U.com LM95233 Dual Remote Diode and LocalTemperature Sensor with SMBus Interface, TCRITs and TruTherm Technology ADVANCE INFORMATION August 2006 LM95233 Dual Remote Diode and Local Temperature Sensor with SMBus Interface, TCRITs and TruTherm™ Technology General Description LM95233 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface that can monitor the temperature of two remote diodes as well as its own temperature. The LM95233 can be used to very accurately monitor the temperature of up to two external devices such as microprocessors, graphics processors or diodeconnected 2N3904s. The LM95233’s TruTherm technology allows sensing of 90nm or 65nm process thermal diodes accurately. The LM95233 reports temperature in two different formats for +127.875˚C/–128˚C range and 0˚C/255˚C range. The LM95233 TCRIT1, TCRIT2 and TCRIT3 outputs are triggered when any unmasked channel exceeds its corresponding programmable limit and can be used to shutdown the system, to turn on the system fans or as a microcontroller interrupt function. The current status of the TCRIT1, TCRIT2 and TCRIT3 pins can be read back from the status registers. Mask registers are available for further control of the TCRIT Key Specifications outputs. LM95233’s remote temperature channels have programj Local Temperature Accuracy ± 2.0 ˚C (max) mable digital filters to minimize unwanted TCRIT events j Remote Diode Temperature ± 0.75 ˚C (max) when temperature spi...