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ATMEL Corporation - Digital Temperature Sensor

Numéro de référence AT30TS00
Description Digital Temperature Sensor
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT30TS00 fiche technique
Features
11-bit ADC Temp-to-Digital Converter with 0.125°C Resolution
Temperature Sensor Compliant with Jedec JC42.4
Two-wire Serial Interface: I2C/SMBuscompatible
SMBusTimeout supported
B-grade Accuracy
±1°C (max) for +75°C to +95°C
±2°C (max) for +40°C to +125°C
±3°C (max) for -20°C to +125°C
Optimized for voltage range: 2.7V to 3.6V
100khz and 400khz Compatibility
Up to Eight Devices on a Single Bus
Versatile Alarm Output with Programmable Trip Temperatures
Programmable hysteresis threshold: off, 0°C, 1.5°C, 3°C, 6 °C
Schmitt Trigger, filtered inputs for Noise Suppression
Low Operating current
Temperature Sensor Active ~ 0.2mA (typ.)
Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options
8-pad Very Very Thin DFN (2 x 3 x 0.8mm)
Description
The Atmel® AT30TS00 combines a temperature sensor, programmable over-
temperature alarms, and a 2-wire I2C/SMBus compatible serial interface into single
compact packages specifically designed for DRAM memory module applications.
However, the AT30TS00 is ideal for many other applications. The AT30TS00
converts its die temperature into digital values using internal analog-to-digital
converters (ADCs). The result of the conversion is held in a temperature register
and is readable at any time through the serial interface. The temperature sensor
converts temperatures from -20°C to +125°C to a digital word and provides an
accuracy of ±1°C (max.) in the temperature range +75°C to +95°C. The temperature
sensor continuously monitors temperature and updates data in the temperature
register at least 8 times per second.
The AT30TS00 supports the industry standard 2-wire I2C/ SMBus serial Interface to
include a time out feature to help prevent system lock-ups.
The AT30TS00 has flexible user programmable internal registers to configure the
temperature sensor performance and response to over temperature conditions. The
device contains programmable high, low, and critical temperature limits. A dedicated
alarm output, EVENT, activates if the conversion result exceeds the value
programmed in the high temperature register. The device EVENT pin is configured
as active low and can be configured to operate as an interrupt or as a comparator
output.
The AT30TS00 features a shutdown mode that saves power by turning off
everything but the power-on reset and the 2-wire interface. The AT30TS00 EVENT
and SDA pins are open-drains and require connection of a suitable external pull-up
resistor.
Digital Temperature
Sensor with
Two-Wire Interface
Atmel AT30TS00
Preliminary
8585BSEEPR8/10

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