STTS424E02_08 Datasheet, PDF (1/51 Pages) STMicroelectronics – Memory module temperature sensor with a 2 Kb SPD EEPROM

STTS424E02
Memory module temperature sensor
with a 2 Kb SPD EEPROM
Features
■ STTS424E02 includes a JEDEC JC 42.4
compatible temperature sensor, integrated
with industry standard 2 Kbit 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: 125 ms (max)
■ Supply voltage: 2.7 V to 3.6 V
■ Maximum operating supply current: 210 µA
(EEPROM inactive)
■ 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: 2.7 V to 3.6 V
■ Byte and page write (up to 16 bytes)
■ Self-time WRITE cycle (5 ms, max)
■ Automatic address incrementing
■ More than 1 million erase/WRITE cycles
■ Operating temperature range:
– -40°C to +85°C (DA package only)
– -40°C to +125°C (DN package only)
TDFN8 (DN)^(a)
2 mm x 3 mm (max height 0.80 mm)
DFN8 (DA)
2 mm x 3 mm (max height 0.90 mm)
Two-wire bus
■ 2-wire SMBus/I²C - compatible serial interface
■ Temperature sensor supports SMBus timeout
■ Supports up to 400 kHz transfer rate
Packages
■ DN: 2 mm x 3 mm TDFN8, height: 0.80 mm
(max)^(a)
■ DA: 2 mm x 3 mm DFN8, height: 0.90 mm
(max)
■ RoHS compliant, halogen-free
a. Compliant to JEDEC MO-229, WCED-3
June 2008
Rev 6
1/51
www.st.com
1