HTS221 Sensor: Datasheet, Pinout and Block Diagram

Sophie

Published: 27 October 2021 | Last Updated: 27 October 2021

1928

HTS221TR

HTS221TR

STMicroelectronics

SENS HUMI/TEMP 2.5V I2C 4.5% SMD

Purchase Guide

SENS HUMI/TEMP 2.5V I2C 4.5% SMD

The HTS221 is an ultra-compact sensor for relative humidity and temperature. This article will unlock more details about HTS221. There is a huge range of Semiconductors, Capacitors, Resistors and ICs in stock. Welcome RFQ.

HTS221 Capacitive Digital Sensor for Relative Humidity and Temperature I²C Mini Module. It includes a sensing element and a mixed signal ASIC to provide the measurement information through digital serial interfaces.

Arduino Nano - HTS221 Relative Humidity and Temperature Sensor Tutorial

HTS221 Pinout

HTS221 Pinout.jpg

HTS221 Pinout

HTS221 CAD Model

Symbol

HTS221 Symbol.jpg

HTS221 Symbol

Footprint

HTS221 Footprint.jpg

HTS221 Footprint

3D Model

HTS221 3D Model.jpg

HTS221 3D Model

HTS221 Description

The HTS221 is a super-compact relative humidity and temperature sensor. It has a sensor element as well as a mixed-signal ASIC that provides measurement data via digital serial ports.

A polymer dielectric planar capacitor structure capable of detecting relative humidity variations makes up the sensor element, which is made via a special ST method.


Specifications

STMicroelectronics HTS221TR technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics HTS221TR.
  • Type
    Parameter
  • Lifecycle Status

    Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.

    ACTIVE (Last Updated: 7 months ago)
  • Factory Lead Time
    16 Weeks
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Surface Mount
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    6-VFLGA
  • Number of Pins
    6
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~120°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Cut Tape (CT)
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    3 (168 Hours)
  • Number of Terminations
    6
  • ECCN Code

    An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.

    EAR99
  • HTS Code

    HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.

    8542.39.00.01
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    1.7V~3.6V
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    BOTTOM
  • Number of Functions
    1
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    2.5V
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    HTS221
  • Output

    In electronic components, the parameter "Output" typically refers to the signal or data that is produced by the component and sent to another part of the circuit or system. The output can be in the form of voltage, current, frequency, or any other measurable quantity depending on the specific component. The output of a component is often crucial in determining its functionality and how it interacts with other components in the circuit. Understanding the output characteristics of electronic components is essential for designing and troubleshooting electronic circuits effectively.

    16b
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    I2C, SPI
  • Operating Supply Voltage

    The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.

    3.6V
  • Supply Voltage-Min (Vsup)

    The parameter "Supply Voltage-Min (Vsup)" in electronic components refers to the minimum voltage level required for the component to operate within its specified performance range. This parameter indicates the lowest voltage that can be safely applied to the component without risking damage or malfunction. It is crucial to ensure that the supply voltage provided to the component meets or exceeds this minimum value to ensure proper functionality and reliability. Failure to adhere to the specified minimum supply voltage may result in erratic behavior, reduced performance, or even permanent damage to the component.

    1.7V
  • Interface

    In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.

    I2C, SPI
  • Analog IC - Other Type

    Analog IC - Other Type is a parameter used to categorize electronic components that are integrated circuits (ICs) designed for analog signal processing but do not fall into more specific subcategories such as amplifiers, comparators, or voltage regulators. These ICs may include specialized analog functions such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), voltage references, or signal conditioning circuits. They are typically used in various applications where precise analog signal processing is required, such as in audio equipment, instrumentation, communication systems, and industrial control systems. Manufacturers provide detailed specifications for these components to help engineers select the most suitable IC for their specific design requirements.

    ANALOG CIRCUIT
  • Operating Supply Current

    Operating Supply Current, also known as supply current or quiescent current, is a crucial parameter in electronic components that indicates the amount of current required for the device to operate under normal conditions. It represents the current drawn by the component from the power supply while it is functioning. This parameter is important for determining the power consumption of the component and is typically specified in datasheets to help designers calculate the overall power requirements of their circuits. Understanding the operating supply current is essential for ensuring proper functionality and efficiency of electronic systems.

    2μA
  • Accuracy

    Accuracy in electronic components refers to the degree to which a measured value agrees with the true or accepted value. It evaluates the precision of a component in providing correct output or measurement under specified conditions. High accuracy indicates minimal deviation from the actual value, while low accuracy shows significant error in measurement. This parameter is crucial in applications where precise data is essential for reliable performance and decision-making.

    ±4.5% RH
  • Response Time

    the time taken for a circuit or measuring device, when subjected to a change in input signal, to change its state by a specified fraction of its total response to that change.

    10s
  • Resolution

    Resolution in electronic components refers to the smallest increment of measurement or change that can be detected or represented by the component. It is a crucial specification in devices such as sensors, displays, and converters, as it determines the level of detail or accuracy that can be achieved. For example, in a digital camera, resolution refers to the number of pixels that make up an image, with higher resolution indicating a greater level of detail. In analog-to-digital converters, resolution is the number of discrete values that can be represented in the digital output, determining the precision of the conversion process. Overall, resolution plays a significant role in determining the performance and capabilities of electronic components in various applications.

    2 B
  • Sensor Type

    In electronic components, the parameter "Sensor Type" refers to the specific type of sensor technology used in a particular component to detect and measure physical phenomena such as light, temperature, pressure, motion, or proximity. Different sensor types utilize various principles and mechanisms to convert the detected input into an electrical signal that can be processed by the electronic component. Common sensor types include photodiodes, thermistors, accelerometers, and proximity sensors, each designed for specific applications and environments. Understanding the sensor type is crucial for selecting the right component for a given task and ensuring accurate and reliable sensing capabilities in electronic systems.

    Humidity, Temperature
  • Humidity Range

    Humidity is a measure of the amount of water vapor in the air. Relative humidity measures the amount of water in the air in relation to the maximum amount of water vapor (moisture).

    0 ~ 100% RH
  • Height
    1mm
  • Length
    2mm
  • Width
    2mm
  • Radiation Hardening

    Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.

    No
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
  • Lead Free

    Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.

    Lead Free
0 Similar Products Remaining

Parts with Similar Specs

The three parts on the right have similar specifications to STMicroelectronics & HTS221TR.

HTS221 Feature

 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


HTS221 Application

  • Air conditioning, heating and ventilation

  • Air humidifiers

  • Refrigerators

  • Wearable devices

  • Smart home automation

  • Industrial automation

  • Respiratory equipment

  • Asset and goods tracking


HTS221 Block Diagram

HTS221 Block Diagram.jpg

HTS221 Block Diagram

How to use HTS221

HTS221 electrical connections.jpg

HTS221 Electrical Connection

As the HTS221 electrical connection is shown above. The VDD line is used to power the gadget. The power supply decoupling capacitor (100 nF ceramic) should be installed as close to the device's supply pad as practicable (common design practice). Through the I2C/SPI interfaces, the device's functionality and measured data outputs can be selected and accessed. The CS line must be tied high (i.e. linked to VDD) or left unconnected to pick the I2C interface (thanks to the internal pull-up). To ensure optimal IC behaviour, all voltage and ground supplies must be present at the same time. 



HTS221 Package

HTS221 Package.jpg

HTS221 Package

HTS221 Manufacturer

STMicroelectronics is a globally recognized semiconductor company. They are dedicated to developing semiconductor solutions for various microelectronics applications. STMicroelectronics enjoys unrivalled silicon and system expertise, strong manufacturing strength, IP portfolio, and solid relationships with their strategic partners. Based on these advantages, STMicroelectronics has become a pioneer in System-on-Chip (SoC) technology and its products have a positive effect in realizing today's convergence trends.

 


Datasheet PDF

Download datasheets and manufacturer documentation for STMicroelectronics HTS221TR.

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Frequently Asked Questions

What are the operating conditions of the HTS221?

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.and from± 0.5 °C,15 to +40 °C temperature accuracy. The datasheet contains all final specifications and operating conditions.

What is the functionality of HTS221?

The HTS221 is a digital humidity and temperature sensor, packaged in an HLGA holed package. The device includes the sensing element and an IC (integrated circuit) interface able to take information from the sensing element and provide a digital signal to the application, communicating through I²C/SPI interfaces with the host controller.
HTS221TR

STMicroelectronics

In Stock: 60

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