Description
The STTS424E02 is targeted for DIMM Modules in Mobile Personal Computing Platforms (Laptops), Server Memory Modules and other industrial applications. The Thermal Sensor (TS) in the STTS424E02 is fully compliant with the JEDEC 42.4 specification, which defines Memory Module Thermal Sensors requirements for Mobile platforms. The 2Kbit Serial Presence Detect (SPD) I2C-compatible Electrically Erasable Programmable Memory (EEPROM) in the STTS424E02 is organized as 256 x8 bits and is functionally identical to the industry standard M34E02.

FEATUREs
■ Temperature sensor compliant with JEDEC
   JC42.4, integrated with 2Kbit Serial Presence
   Detect (SPD) EEPROM.

Temperature sensor
■ Temperature sensor resolution:
   0.25°C (typ)/LSB
■ Temperature sensor accuracy:
   – ± 1°C from +75°C to +95°C
   – ± 2°C from +40°C to +125°C
   – ± 3°C from –40°C to +125°C
■ ADC conversion time: 125ms (max)
■ Supply voltage: 2.7V to 3.6 V
■ Maximum operating supply current: 200µA
■ Hysteresis selectable set points from: 0, 1.5, 3,
   6.0°C
■ Ambient temperature sensing range: -40°C to
   +125°C

2Kb SPD EEPROM
■ Functionality identical to ST’s M34E02 SPD
   EEPROM
■ Permanent and reversible software data
   protection for the lower 128 bytes
■ Single supply voltage: 2.7V to 3.6V
■ Byte and page write (up to 16 bytes)
■ Self-time WRITE cycle (5ms, max)
■ Automatic address incrementing
■ More than 1 million erase/WRITE cycles
■ Operating temperature range: -40°C to +85°C

Two-wire bus
■ 2-Wire SMBus/I2C -compatible serial interface
■ Supports up to 100kHz transfer rate

Packages
■ 2mm x 3mm DFN8, height: 0.85mm (typ)
■ 4.4mm x 3mm TSSOP8(a)
■ Halogen-free, lead-free