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PDF STTS2002 Data sheet ( Hoja de datos )
| Número de pieza | STTS2002 | |
| Descripción | 2.3 V memory module temperature sensor | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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STTS2002
2.3 V memory module temperature sensor
with a 2 Kb SPD EEPROM
Data brief
Features
■ STTS2002 is a 2.3 V memory module
temperature sensor with 2 Kb SPD EEPROM
forward compatible with JEDEC standard TSE
2002a2 and backward compatible with
STTS424E02
■ Operating temperature range:
– –40 °C to +125 °C
■ Single supply voltage: 2.3 V to 3.6 V
■ 2 mm x 3 mm TDFN8, height: 0.80 mm (max)(a)
■ RoHS compliant, halogen-free
Temperature sensor
■ Temperature sensor resolution:
programmable (9-12 bits)
0.25 °C (typ)/LSB - (10-bit) default
■ Temperature sensor accuracy (max):
– ± 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) at default
resolution (10-bit)
■ Typical operating supply current: 160 µA
(EEPROM standby)
■ Temperature hysteresis selectable set points
from: 0, 1.5, 3, 6.0 °C
■ Supports SMBus timeout 25 ms - 35 ms
TDFN8 (DN)(a)
2 mm x 3 mm (max height 0.80 mm)
2 Kb SPD EEPROM
■ Functionality identical to ST’s M34E02 SPD
EEPROM
■ Permanent and reversible software data
protection for the lower 128 bytes
■ Byte and page write (up to 16 bytes)
■ Self-time WRITE cycle (5 ms, max)
■ Automatic address incrementing
Two-wire bus
■ Two-wire SMBus/I2C - compatible serial
interface
■ Supports up to 400 kHz transfer rate
■ Does not initiate clock stretching
www.DataSheet4U.com
a. Compliant to JEDEC MO-229, WCED-3
March 2010
Doc ID 17216 Rev 1
For further information contact your local STMicroelectronics sales office.
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STTS2002
2 Temperature sensor registers
Temperature sensor registers
The temperature sensor component is comprised of various user-programmable registers.
These registers are required to write their corresponding addresses to the pointer register.
They can be accessed by writing to their respective addresses (see Table 2). Pointer
register bits 7 - 4 must always be written to '0'. This must be maintained, as not setting these
bits to '0' may keep the device from performing to specifications.
The main registers include the :
● Capability register (read-only)
● Configuration register (read/write)
● Temperature register (read-only)
● Temperature trip point registers (read/write), including
– Alarm temperature upper boundary
– Alarm temperature lower boundary and
– Critical temperature
● Manufacturer’s ID register (read-only)
● Device ID and device revision ID register (read-only)
● Temperature resolution register (TRES) (read/write)
Table 2. Temperature sensor registers summary
Address (hex)
Register name
Not applicable Address pointer
00 Capability
B-grade
01 Configuration
02 Alarm temperature upper boundary trip
03 Alarm temperature lower boundary trip
04 Critical temperature trip
05 Temperature
06 Manufacturer’s ID
07 Device ID/revision
08 Temperature resolution register
Power-on default
Undefined
0x006F
0x0000
0x0000
0x0000
0x0000
Undefined
0x104A
0x0300
0x0001
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Doc ID 17216 Rev 1
5/9
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet STTS2002.PDF ] | |
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