SBOA631 August   2025 HDC1010 , HDC1080 , HDC2010 , HDC2021 , HDC2022 , HDC2080 , HDC3020 , HDC3020-Q1 , HDC3021 , HDC3021-Q1 , HDC3022 , HDC3022-Q1 , HDC3120 , HDC3120-Q1

1.   1
2.   Abstract
3.   Trademarks
4. 1Introduction
5. 2Digital I2C Interface Overview
   1. 2.1 Register Map Protocol
      1. 2.1.1 A Quick Overview of I2C Register Map Protocol
         1. 2.1.1.1 HDC1x
         2. 2.1.1.2 HDC2x
            1. 2.1.1.2.1 Interfacing in Trigger-On Demand Mode
            2. 2.1.1.2.2 Interfacing Using Auto Measurement Mode (AMM)
   2. 2.2 Command Protocol
      1. 2.2.1 HDC302x
         1. 2.2.1.1 Interfacing in Trigger-On Demand Mode (One-Shot)
         2. 2.2.1.2 Interfacing in Auto Measurement Mode (AMM)
         3.       How to Check Measurement Data With CRC
6. 3Analog Interface Overview
   1. 3.1 HDC3120
7. 4Summary
8. 5Development Support and Documentation
   1. 5.1 Software Support
   2. 5.2 References

TI Humidity Sensors: Programming & Integration Guide