Circuit & System Protection


DDR3 monitoring IC

14 April 2010 Circuit & System Protection

The new STTS2002 from STMicroelectronics is an integrated serial presence detect (SPD) EEPROM memory and temperature monitoring IC which meets the latest JEDEC TSE2002 standard for DDR3 DRAM modules. The temperature sensor enables the CPU and chipset in the system to apply closed-loop thermal throttling (CLTT) when the temperature of the DDR3 DIMM modules exceeds a pre-programmed threshold value. The CLTT prevents overheating of the memory modules, thereby assuring reliability and optimal power consumption. The STTS2002 meets the form, function and performance requirements of JEDEC TSE2002, communicating SPD and temperature data over an industry-standard system management bus (SMBus) interface. By consuming low current, it can be implemented with low impact on the overall system power budget.



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