STS1TX

Active
Education

Low data rate, low power sub-1GHz transmitter

Download datasheet Order Direct
Overview
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
eDesignSuite
Get Started
Partner products
Sales Briefcase
  • The STS1TX is a very low-power RF transmitter intended for RF wireless applications in the sub-1 GHz band. It is designed to operate both in the license-free ISM and SRD frequency bands at 169, 315, 433, 868, and 915 MHz, but can also be programmed to operate at other frequencies in the 300-348, 387-470, and 779-956 MHz bands. The air data rate is programmable from 1 to 500 kbps, and the STS1TX can be used in systems with channel spacing of 12.5/25 kHz, complying with the EN 300 220 standard. It uses very few discrete external components and integrates a configurable baseband modem, which supports data management and modulation. The data management handles the data in the proprietary fully-programmable packet format, and also allows the M-Bus standard compliance format (all performance classes).

    An AES 128-bit encryption co-processor is available for secure data transfer. The STS1TX supports different modulation schemes: 2-FSK, GFSK, OOK, ASK, and MSK. Transmitted data bytes are buffered in FIFO (TX FIFO), accessible via the SPI interface for host processing.

    Key Features

    • Frequency bands: 150-174 MHz, 300-348 MHz, 387-470 MHz, 779-956 MHz
    • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
    • Air data rate from 1 to 500 kbps
    • Very low power consumption (21 mA TX at +11 dBm)
    • Programmable channel spacing (12.5 kHz min.)
    • Programmable output power up to +16 dBm
    • Fast startup and frequency synthesizer settling time (6 μs)
    • Integrated temperature sensor
    • Battery indicator and low battery detector
    • TX FIFO buffer (96 bytes each)
    • Configurability via SPI interface
    • AES 128-bit encryption co-processor
    • Fully integrated ultra low power RC oscillator
    • Wakeup on internal timer and on external event
    • Flexible packet length with dynamic payload length
    • Automatic CRC handling
    • FEC with interleaving
    • Whitening of data
    • Wireless M-BUS, EN 300 220, FCC CFR47 15 (15.205, 15.209, 15.231, 15.247, 15.249), and ARIB STD T-67, T93, T-108 compliant
    • QFN20 4x4 mm RoHS package
    • Operating temperature range from -40 °C to 85 °C

Recommended for you

Related Applications

Home, Building and City Automation

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      SensiSUB

      Active

      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
      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.
    • Part number
      Status
      Description
      Type
      Supplier

      STSW-CONNECT009

      Active

      Setup for SPIRIT1 design kit

      Evaluation Tool Software ST
      STSW-CONNECT009

      Description:

      Setup for SPIRIT1 design kit
    • Part number
      Status
      Description
      Type
      Supplier

      STM32CubeWL

      Active

      STM32Cube MCU Package for STM32WL series (HAL, Low-Layer APIs and CMSIS, File system, RTOS, KMS, Secure Engine, Sub-GHz Phy, LoRaWAN and Sigfox stacks - and examples running on ST boards)

      STM32Cube MCU & MPU Packages ST
      STM32CubeWL

      Description:

      STM32Cube MCU Package for STM32WL series (HAL, Low-Layer APIs and CMSIS, File system, RTOS, KMS, Secure Engine, Sub-GHz Phy, LoRaWAN and Sigfox stacks - and examples running on ST boards)
    • Part number
      Status
      Description
      Type
      Supplier

      NUCLEO-WL55JC

      Active

      STM32 Nucleo-64 development board with STM32WL55JCI MCU, SMPS, supports Arduino and morpho connectivity

      STM32 Nucleo Boards ST
      NUCLEO-WL55JC

      Description:

      STM32 Nucleo-64 development board with STM32WL55JCI MCU, SMPS, supports Arduino and morpho connectivity
    • Part number
      Status
      Description
      Type
      Supplier

      HW Design Service

      Active

      Complete OEM solution from end to end.

      Engineering Services DiZiC
      HW Design Service

      Description:

      Complete OEM solution from end to end.

      SensiEDGE customization services

      Active

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

      Engineering Services SensiEDGE
      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!

      Short-Range-Devices Test Services

      Active

      Consulting, Test, Certification & Approval Services for Sub 1 GHz / SRD products

      Engineering Services 7Layers
      Short-Range-Devices Test Services

      Description:

      Consulting, Test, Certification & Approval Services for Sub 1 GHz / SRD products

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STS1TX

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

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STS1TXQTR
Active
VFQFPN 20 4x4x1.0 Industrial Ecopack3

STS1TXQTR

Package:

VFQFPN 20 4x4x1.0

Material Declaration**:

Marketing Status

Active

Package

VFQFPN 20 4x4x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) 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
STS1TXQTR Available at 3 distributors

Distributor availability ofSTS1TXQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4392 1 Order Now
MOUSER WORLDWIDE 4497 1 Order Now
Farnell Element14 EUROPE 2887 1 Order Now

Distributor reported inventory date: 2021-01-27

Distributor Name

DIGIKEY

Stock

4392

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

4497

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2887

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-27

Free Sample Buy Direct
Active
5A992C 5A002A2 Tape And Reel VFQFPN 20 4x4x1.0 -40 85 PHILIPPINES 1.125 / 1k

STS1TXQTR

Marketing Status

Active

ECCN (US)

5A992C

Budgetary Price (US$)*/Qty

1.125 / 1k

Distributor availability ofSTS1TXQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4392 1 Order Now
MOUSER WORLDWIDE 4497 1 Order Now
Farnell Element14 EUROPE 2887 1 Order Now

Distributor reported inventory date: 2021-01-27

Distributor Name

DIGIKEY

Stock

4392

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

4497

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2887

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-27

ECCN (EU)

5A002A2

Packing Type

Tape And Reel

Package

VFQFPN 20 4x4x1.0

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

1.125 / 1k

Country of Origin

PHILIPPINES

(*) 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