General Description
The TC74 is a serially accessible, digital temperature sensor particularly suited for low cost and small formfactor applications. Temperature data is converted from the onboard thermal sensing element and made available as an 8-bit digital word.
Communication with the TC74 is accomplished via a 2-wire SMBus/I2C compatible serial port. This bus also can be used to implement multi-drop/multi-zone monitoring. The SHDN bit in the CONFIG register can be used to activate the low power Standby mode.
Temperature resolution is 1°C. Conversion rate is a nominal 8 samples/sec. During normal operation, the quiescent current is 200 μA (typ). During standby operation, the quiescent current is 5 μA (typ).
Small size, low installed cost and ease of use make the TC74 an ideal choice for implementing thermal management in a variety of systems.

Features
*Digital Temperature Sensing in SOT-23-5 or TO-220 Packages
*Outputs Temperature as an 8-Bit Digital Word
*Simple SMBus/I2C™ Serial Port Interface
*Solid-State Temperature Sensing:
 ±2°C (max.) Accuracy from +25°C to +85°C
 ±3°C (max.) Accuracy from 0°C to +125°C
*Supply Voltage of 2.7V to 5.5V
*Low Power:
 200 μA (typ.) Operating Current
 5 μA (typ.) Standby Mode Current

Applications
*Thermal Protection for Hard Disk Drives and other PC Peripherals
*PC Card Devices for Notebook Computers
*Low Cost Thermostat Controls
*Power Supplies
*Thermistor Replacement

TC74A0-3.3VCT, TC74A1-3.3VCT, TC74A2-3.3VCT, TC74A3-3.3VCT,
TC74A4-3.3VCT, TC74A5-3.3VCT, TC74A6-3.3VCT, TC74A7-3.3VCT

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