Low-power, digital temperature sensor with SMAART Wire™ / UART interface


Product details


Local sensor accuracy (Max) (+/- C) 1 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 1.4 Interface type UART Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 3 Temp resolution (Max) (bits) 12 Features Daisy chain Remote channels (#) 0 Addresses 16 Rating Catalog open-in-new Find other Digital temperature sensors

Package | Pins | Size

DSBGA (YFF) 4 1 mm² .8 x 1 open-in-new Find other Digital temperature sensors


  • Multiple Device Access (MDA):
    • Global read/write operations
  • SMAART Wire™ / UART interface
  • Resolution: 12-bit or 0.0625 °C
  • ±1 °C maximum (–10 °C to +100 °C)
  • ±2 °C maximum (–40 °C to +125 °C)
  • Low quiescent current:
    • 3-µA active IQ at 0.25 Hz
    • 0.6-µA shutdown
  • Supply range: 1.4 V to 3.6 V
  • Push-pull digital output
  • Package:
    • 0.76 mm × 0.96 mm, 150-µm maximum height, 4-ball YMT (DSBGA)
    • 0.76 mm × 0.96 mm, 625-µm maximum height, 4-ball YFF (DSBGA)

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The TMP144 digital output temperature sensor can read temperatures to a resolution of 0.0625 °C.

The device has a SMAART Wire™ / UART interface that supports daisy-chain configurations. The interface also supports Multiple Device Access (MDA) commands that let the host communicate with multiple devices on the bus simultaneously. MDA commands are used as an alternative to sending individual commands to each device on the bus. Up to 16 TMP144 devices can be attached together serially and can be read by the host computer.

The TMP144 device is designed for space-constrained, power-sensitive applications with multiple temperature measurement zones that must be monitored. The device is specified for operation over a temperature range of –40 °C to 125 °C and is available in two different 4-ball, low-height wafer chip-scale package (DSBGA) options. The YMT package of the device has a height of 150 µm, which is 40% thinner than a 0201 resistor. The thinner YMT package can be placed under heat-dissipating components on the system for better accuracy and faster thermal response times.

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Technical documentation

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Type Title Date
* Data sheet TMP144 Low-Power, Digital Temperature Sensor With SMAART Wire™ / UART Interface datasheet (Rev. B) Apr. 20, 2021
Application note Efficient Cold Chain Management With Scalable High-Accuracy Temperature Sensors (Rev. A) Dec. 11, 2020
Application note How to Boost Your CPU, GPU, and SoC Performance Through Thermal Accuracy Sep. 22, 2020
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical article How to select a temperature sensor probe Feb. 18, 2016

Design & development

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Hardware development

document-generic User guide
The TMP144 digital output temperature sensor is capable of reporting temperature with 0.0625°C resolution. The SMAART Wire™ Interface supports up to 16 devices connected serially in conjunction with a UART host. The TMP144EVM leverages the MSP430F5528 to create a USB-to-SMAART Wire(TM (...)
  • Four Accurate Temperature Sensor Nodes
  • Breakable PCB allows for breadboard compatibility

CAD/CAE symbols

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(YMT) 4 View options
DSBGA (YFF) 4 View options

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