SBOA542 November   2022 TMP1826 , TMP1827

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Bus Reset and Response
    2. 1.2 Host Write, Device Read
    3. 1.3 Host Read, Device Write
  4. 2Interfacing TMP1826 With the Host MCU
    1. 2.1 Using GPIO as Host Interface
    2. 2.2 Software Driver for GPIO
    3. 2.3 Using UART as Host Interface
    4. 2.4 Software Driver for UART
    5. 2.5 Using SPI as Host Interface
    6. 2.6 Software Driver for SPI
  5. 3Summary
  6. 4References

3 Summary

In conclusion, this application note explains how host MCUs ranging from slow 8- or 16-bit processors to fast 32-bit processors can be used to implement the host controller function for a single-wire TMP1826 and TMP1827 digital temperature sensors using bit-banged GPIO as well as higher throughput peripherals like UART and SPI. Based on the application and host MCU capabilities one or more of these methods can significantly reduce the development effort for software engineers. In addition, Texas Instruments provides an MCU independent application framework software which can rapidly get a design from concept to production.

With the capability of integrating power delivery and digital communication in a single conductor along with a ground reference, the TMP1826 and TMP1827 devices provide excellent scalability in applications like factory automation, power delivery, building automation, and medical equipment.