Datasheet SHT21

www.sensirion.com / D1

Version 5 – October 2022

13/14

Revision History

Date

Version

Page(s)

Changes

6 May 2009

0.3

1 – 9

Initial preliminary release

21 January 2010

1.0

1 – 4, 7 – 10 Complete revision. For complete revision list please require respective document.

5 May 2010

1.1

1 – 12

Typical specification for temperature sensor. Elimination of errors. For detailed

information, please require complete change list at info@sensirion.com.

9 May 2011

2

1 – 7, 10 –

13

Updated temperature accuracy specifications, MSL and standards. Elimination of

errors. For detailed information, please require complete change list at

info@sensirion.com.

December 2011

3

1, 7-10

Tolerance of threshold value for low battery signal, minor text adaptations and

corrections.

May 2014

4

1-4, 7-8, 9-10 Sensor window dimension updated, several minor adjustments

October 2022

5

10

Changed wait from 20 µs to 18.5 µs in Figure 16 and added a corresponding

clarification chapter 5.8 I2C communication recommendation, corrected typos,

added bibliography, updated important notices.