STTS424E02 datasheet(1/51 Pages) STMICROELECTRONICS

Part #	STTS424E02

Description	Memory module temperature sensor with a 2 Kb SPD EEPROM

PDF	51 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 51 page

June 2008

Rev 6

1/51

1

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)

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

DFN8 (DA)

2 mm x 3 mm (max height 0.90 mm)

TDFN8 (DN)(a)

2 mm x 3 mm (max height 0.80 mm)

www.st.com

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STTS424E02 Datasheet(PDF) 1 Page - STMicroelectronics

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