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The HTS221 is an ultra-compact sensor for relative humidity and temperature. It includes a sensing element and a mixed signal ASIC to provide the measurement information through digital serial interfaces.
The sensing element consists of a polymer dielectric planar capacitor structure capable of detecting relative humidity variations and is manufactured using a dedicated ST process.
The HTS221 is available in a small top-holed cap land grid array (HLGA) package guaranteed to operate over a temperature range from -40 °C to +120 °C.Key Features
- 0 to 100% relative humidity range
- Supply voltage: 1.7 to 3.6 V
- Low power consumption: 2 μA @ 1 Hz ODR
- Selectable ODR from 1 Hz to 12.5 Hz
- High rH sensitivity: 0.004% rH/LSB
- Humidity accuracy: ± 3.5% rH, 20 to +80% rH
- Temperature accuracy: ± 0.5 °C,15 to +40 °C
- Embedded 16-bit ADC
- 16-bit humidity and temperature output data
- SPI and I²C interfaces
- Factory calibrated
- Tiny 2 x 2 x 0.9 mm package
- ECOPACK® compliant
Featured Videos
This video on the SensorTile.box Pro Mode shows you how to use this IoT and wearable sensor development kit to create customized wireless applications using an STM32Cube function pack. Use-case on a Human Activity Recognition algorithm included.
Watch this short tutorial on the Expert mode of the SensorTile.box to learn how to use a graphical wizard to build programs without having to write any code.
The first video in the SensorTile.box series of short tutorials will guide you through the pre-recorded examples in the device firmware to help you use IoT and wearable sensor applications.
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - HTS221
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| HTS221TR |
Active
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HLGA-6L 2X2X0.9 | Ecopack2 |
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HTS221TR
Package:
HLGA-6L 2X2X0.9Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| HTS221TR | 3 distributors |
Active
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EAR99 | NEC | Tape And Reel | HLGA-6L 2X2X0.9 | -40 | 120 | MALTA | 1.4 / 1k | ||
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.4 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
