Microchip TC72 Digital Temperature Sensor Datasheet

The TC72 is a digital temperature sensor capable of reading temperatures from -55°C to +125°C. This sensor features a serial interface that allows communication with a host controller or other peripherals. The TC72 interface is compatible with the SPI protocol. The TC72 does not require any additional external components. However, it is recommended that a decoupling capacitor of 0.01 µF to 0.1 µF be provided between the VDD and GND pins. The TC72 can be used either in a Continuous Temperature Conversion mode or a One-Shot Conversion mode. The Continuous Conversion mode measures the temperature approximately every 150 ms and stores the data in the temperature registers. In contrast, the One-Shot mode performs a s


Microchip TC72 Digital Temperature Sensor Datasheet - cover page
Brand
MICROCHIP
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
24
File format
PDF
File size
320 KB
Published
01 June, 2012
Updated
29 September, 2023
Model
TC72
MD5 checksum
6481675FF3A717446F5B95E4532FF369

About this manual

The TC72 is a digital temperature sensor that communicates via a SPI‑compatible serial interface. It provides 10‑bit resolution (0.25 °C per bit) and offers ±2 °C accuracy from –40 °C to +85 °C and ±3 °C accuracy from –55 °C to +125 °C. The device can operate in continuous conversion mode, updating temperature roughly every 150 ms, or in a low‑power one‑shot mode.

The sensor is offered in two compact 8‑pin packages: a standard MSOP and a space‑saving 3 × 3 mm DFN. It is suited for a wide range of applications such as PCs, servers, hard‑disk drives, entertainment systems, mobile phones and general‑purpose temperature monitoring.

What's inside

  • Features
  • Typical Applications
  • Electrical Characteristics
  • Functional Description
  • Temperature Data Format
  • Power‑Up and Power‑Down
  • Serial Bus Interface
  • Read Operation
  • Write Operation
  • Product Identification System

Specifications

Operating Voltage Range2.65 V – 5.5 V
Operating Temperature Range–55 °C to +125 °C
Resolution10‑bit (0.25 °C/Bit)
Accuracy (–40 °C to +85 °C)±2 °C (max.)
Accuracy (–55 °C to +125 °C)±3 °C (max.)
InterfaceSPI‑compatible serial interface

Frequently asked questions

How is temperature data represented by the TC72?

Temperature data is output as a 10‑bit two’s‑complement word with a resolution of 0.25 °C per bit.

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