HTS221

Active

Capacitive digital sensor for relative humidity and temperature

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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

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      Status
      Description
      Type
      Supplier

      AWS IoT Core

      Active

      AWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices

      Cloud AWS

      AZURE Cloud

      Active

      Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.

      Cloud Microsoft

      Watson IoT Platform

      Active

      IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices.

      Cloud IBM
      AWS IoT Core

      Description:

      AWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices
      AZURE Cloud

      Description:

      Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.
      Watson IoT Platform

      Description:

      IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices.
    • Part number
      Status
      Description
      Type
      Supplier

      SensiBLE

      Active

      Ready-to-use BLE System-on-Module packed with sensors, low power ARM® 32-bit Cortex®-M4 CPU and coin battery. Speed up IoT product development today!

      Components and Modules SensiEDGE

      SensiBLE 2.0

      Active

      SensiBLE 2.0 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols.

      Components and Modules SensiEDGE

      SensiBLE 2.1

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      SensiBLE 2.1 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols.

      Components and Modules SensiEDGE

      SensiSUB

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      Connecting low-power SUB 1GHZ RF transceiver to the Cloud with fully customisable sensors, ARM® 32-bit Cortex®-M4 CPU and coin battery.

      Components and Modules SensiEDGE

      Temp&Hum click

      Active

      Temp&Hum click carries ST's HTS221 temperature and relative humidity sensor. Its temperature measurement accuracy is ±1°C within a 0-60°C range.

      Components and Modules MikroElektronika
      SensiBLE

      Description:

      Ready-to-use BLE System-on-Module packed with sensors, low power ARM® 32-bit Cortex®-M4 CPU and coin battery. Speed up IoT product development today!
      SensiBLE 2.0

      Description:

      SensiBLE 2.0 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols.
      SensiBLE 2.1

      Description:

      SensiBLE 2.1 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols.
      SensiSUB

      Description:

      Connecting low-power SUB 1GHZ RF transceiver to the Cloud with fully customisable sensors, ARM® 32-bit Cortex®-M4 CPU and coin battery.
      Temp&Hum click

      Description:

      Temp&Hum click carries ST's HTS221 temperature and relative humidity sensor. Its temperature measurement accuracy is ±1°C within a 0-60°C range.
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      Status
      Description
      Type
      Supplier

      X-NUCLEO-IKS01A1

      NRND

      Motion MEMS and environmental sensor expansion board for STM32 Nucleo

      STM32 ODE Sense HW ST

      X-NUCLEO-IKS01A2

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      Motion MEMS and environmental sensor expansion board for STM32 Nucleo

      STM32 ODE Sense HW ST

      X-NUCLEO-IKS01A3

      Active

      Motion MEMS and environmental sensor expansion board for STM32 Nucleo

      STM32 ODE Sense HW ST
      X-NUCLEO-IKS01A1

      Description:

      Motion MEMS and environmental sensor expansion board for STM32 Nucleo
      X-NUCLEO-IKS01A2

      Description:

      Motion MEMS and environmental sensor expansion board for STM32 Nucleo
      X-NUCLEO-IKS01A3

      Description:

      Motion MEMS and environmental sensor expansion board for STM32 Nucleo
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      Status
      Description
      Type
      Supplier

      X-CUBE-MEMS-XT1

      NRND

      Sensor and DSP algorithm software expansion for STM32Cube

      STM32Cube Expansion Packages ST

      X-CUBE-MEMS1

      Active

      Sensor and motion algorithm software expansion for STM32Cube

      STM32Cube Expansion Packages ST
      X-CUBE-MEMS-XT1

      Description:

      Sensor and DSP algorithm software expansion for STM32Cube
      X-CUBE-MEMS1

      Description:

      Sensor and motion algorithm software expansion for STM32Cube
    • Part number
      Status
      Description
      Type
      Supplier

      AndroidHAL-IIO

      Active

      Android sensor HAL for MEMS motion and environmental sensors (Industrial I/O framework)

      Drivers for MEMS ST

      AndroidHALInput

      Active

      Android sensor HAL for MEMS motion and environmental sensors (Input framework)

      Drivers for MEMS ST

      C-Driver-MEMS

      Active

      Standard C platform-independent drivers for MEMS motion and environmental sensors

      Drivers for MEMS ST

      LinuxDriverIIO

      Active

      Linux device drivers for MEMS motion and environmental sensors (Industrial I/O framework)

      Drivers for MEMS ST

      LinuxDriverInput

      Active

      Linux device drivers for MEMS motion and environmental sensors (Input framework)

      Drivers for MEMS ST
      AndroidHAL-IIO

      Description:

      Android sensor HAL for MEMS motion and environmental sensors (Industrial I/O framework)
      AndroidHALInput

      Description:

      Android sensor HAL for MEMS motion and environmental sensors (Input framework)
      C-Driver-MEMS

      Description:

      Standard C platform-independent drivers for MEMS motion and environmental sensors
      LinuxDriverIIO

      Description:

      Linux device drivers for MEMS motion and environmental sensors (Industrial I/O framework)
      LinuxDriverInput

      Description:

      Linux device drivers for MEMS motion and environmental sensors (Input framework)
    • Part number
      Status
      Description
      Type
      Supplier

      STDES-MKI128V7

      Active

      Smart MEMS Multi-sensor module

      MEMS Motion Sensor Eval Boards ST

      STEVAL-MKI141V2

      Active

      HTS221 humidity sensor adapter board for standard DIL24 socket (full pinout)

      MEMS Motion Sensor Eval Boards ST

      STEVAL-MKSBOX1V1

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      MEMS Motion Sensor Eval Boards ST

      STEVAL-SMARTAG1

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      NFC Dynamic Tag sensor node evaluation board

      ST25 NFC/RFID Eval Boards ST

      STREF-MKI128V6

      Active

      Smart MEMS Multi-sensor module

      MEMS Motion Sensor Eval Boards ST
      STDES-MKI128V7

      Description:

      Smart MEMS Multi-sensor module
      STEVAL-MKI141V2

      Description:

      HTS221 humidity sensor adapter board for standard DIL24 socket (full pinout)
      STEVAL-MKSBOX1V1

      Description:

      SensorTile.box wireless multi sensor development kit with user friendly app for IoT and wearable sensor applications
      STEVAL-SMARTAG1

      Description:

      NFC Dynamic Tag sensor node evaluation board
      STREF-MKI128V6

      Description:

      Smart MEMS Multi-sensor module
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      Status
      Description
      Type
      Supplier

      STEVAL-BCN002V1B

      Active

      BlueTile - Bluetooth LE enabled sensor node development kit

      Sensor Solution Eval Boards ST

      STEVAL-BFA001V1B

      NRND

      Predictive maintenance kit with sensors and IO-Link capability

      Communication and Connectivity Solution Eval Boards ST

      STEVAL-IDI001V1

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      Sensor Solution Eval Boards ST

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      ArgonKey mezzanine board based on different ST sensors

      Sensor Solution Eval Boards ST
      STEVAL-BCN002V1B

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      STEVAL-BFA001V1B

      Description:

      Predictive maintenance kit with sensors and IO-Link capability
      STEVAL-IDI001V1

      Description:

      A premium developer's tool for sensor hub applications
      STEVAL-MKI187V1

      Description:

      ArgonKey mezzanine board based on different ST sensors
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      Status
      Description
      Type
      Supplier

      SensiEDGE customization services

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      End-to-end development services: Hardware, Firmware, Software development, Enclosure, Cloud and mobile APPs. Speed up your IoT project with SensiEDGE!

      Engineering Services SensiEDGE

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      Engineering services on theSensorTile.box surch as Plastic housing, HW and SW/App customizations and boards Manufacturing.

      Engineering Services FAE Technology
      SensiEDGE customization services

      Description:

      End-to-end development services: Hardware, Firmware, Software development, Enclosure, Cloud and mobile APPs. Speed up your IoT project with SensiEDGE!
      SensorTile.box customization services

      Description:

      Engineering services on theSensorTile.box surch as Plastic housing, HW and SW/App customizations and boards Manufacturing.

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STMicroelectronics - HTS221

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Quality and Reliability

Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
HTS221TR
Active
HLGA-6L 2X2X0.9 Ecopack2

HTS221TR

Package:

HLGA-6L 2X2X0.9

Material Declaration**:

Marketing Status

Active

Package

HLGA-6L 2X2X0.9

RoHS Compliance Grade

Ecopack2

(**) 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
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ECCN (US)
ECCN (EU)
Packing Type
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Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
HTS221TR Available at 5 distributors

Distributor availability ofHTS221TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5886 1 Order Now
COMPEL EUROPE 3771 1 Order Now
RS COMPONENTS EUROPE 878 2 Order Now
MOUSER WORLDWIDE 2120 1 Order Now
Farnell Element14 EUROPE 10 1 Order Now

Distributor reported inventory date: 2020-10-30

Distributor Name

DIGIKEY

Stock

5886

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3771

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

878

Min.Order

2

Region

EUROPE Order Now

MOUSER

Stock

2120

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-30

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel HLGA-6L 2X2X0.9 -40 120 MALTA 1.4 / 1k

HTS221TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.4 / 1k

Distributor availability ofHTS221TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5886 1 Order Now
COMPEL EUROPE 3771 1 Order Now
RS COMPONENTS EUROPE 878 2 Order Now
MOUSER WORLDWIDE 2120 1 Order Now
Farnell Element14 EUROPE 10 1 Order Now

Distributor reported inventory date: 2020-10-30

Distributor Name

DIGIKEY

Stock

5886

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3771

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

878

Min.Order

2

Region

EUROPE Order Now

MOUSER

Stock

2120

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

HLGA-6L 2X2X0.9

Operating Temperature (°C)

(min)

-40

(max)

120

Budgetary Price (US$)* / Qty

1.4 / 1k

Country of Origin

MALTA

(*) 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