HTU21D Datasheet, PDF (1/7 Pages) TE Connectivity Ltd – Digital Relative Humidity sensor with Temperature output

Performance
 0% to 100% relative humidity range
 -40°C to 125°C temperature range
 Very low power consumption
 Operates from 1.5V to 3.6V
 Fast response time – 5 seconds typical
 Built-in heater for fast recovery from saturation
 Recovers fully from condensation
 Fast conversion time – 14ms typical
Features
 20-pin Xplained Pro compatible connector
 I²C interface
 Xplained Pro Hardware identification Chip
 Atmel Studio 6 Project available for download
 µC C code available for download
 Selectable 8-12 bit resolution for humidity
 Selectable 12-14 bit resolution for temperature
Schematic
MEAS HTU21D
XPLAINED PRO BOARD
Digital Humidity
Digital Component Sensor (DCS) Development Tools
The HTU21D Xplained Pro provides the necessary hardware to
interface the HTU21D digital relative humidity and temperature sensor
to any system that utilizes Xplained Pro compatible expansion ports
configurable for I²C communication. The HTU21D sensor is a self-
contained humidity and temperature sensor that is fully calibrated
during manufacture. The sensor can operate from 1.5V to 3.6V, has
selectable resolution, low battery detect, and checksum capability. The
HTU21D has a low power stand-by mode for power-sensitive
applications.
Refer to the HTU21D datasheet for detailed information regarding
operation of the IC:
http://www.te.com/usa-en/product-CAT-HSC0004.html
Specifications
 Measures relative humidity from 0% to 100%
 Measures temperature from -40°C to 125°C
 I²C communication
 Fully calibrated
 Fast response time
 Selectable resolution
 Very low power consumption
SENSOR SOLUTIONS /// MEAS HTU21D XPLAINED PRO BOARD
062017
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