For product comparison, please consider:MCP98243
Feature
- Meets JEDEC JC42.4 Mobile Platform Memory Module Thermal Sensor specification plusincludes DDR2 compatible Serial Presence Detect (SPD) 2k bit serial EEPROM
 - Temperature Sensor Features:
   
- Critical Event output pin
 - User-programmalbe settings for shutdown modes, Event and critical output limits,and hysteresis limits
 - Resolution of 0.25°C per LSB
 - ±1°C Max accuracy from +75°C to +95°C
 - ±3°C Max accuracy from -20°C to +125°C
 
 - Serial EEPROM Features:
   
- DDR2 compatible SPD functionality
 - S/W write protection of lower half of array
 - Clear Write Protect functionality
 - Permanent Write Protect functionality
 
 - General Features:
   
- Low Operating Current: 200 µA typical (for temp sensor)
 - 2-wire I²C™/SMBus Compatible Interface
 - 8-pin TSSOP and 2mm x 3mm 8-pin DFN Packages
 
 

















