STM8L050J3

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Ultra-low-power Value line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

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Product overview

Description

STM8L050J3 is member of the STM8L ultra-low-power 8-bit family.

STM8L050J3 features an enhanced STM8 CPU core providing increased processing power (up to 16 MIPS at 16 MHz) while maintaining the advantages of a CISC architecture with improved code density, a 24-bit linear addressing space and an optimized architecture for low-power operations.

The STM8L050J3 MCU includes an integrated debug module with a hardware interface (SWIM) which allows non-intrusive In-Application debugging and ultra-fast Flash programming. It features an embedded data EEPROM and low-power, low-voltage, single-supply program Flash memory.

The device incorporates an extensive range of enhanced I/Os and peripherals, a 12-bit ADC, two comparators, a real-time clock, two 16-bit timers, one 8-bit timer, as well as standard communication interfaces such as an SPI, an I2C interface, and one USART.

The modular design of the peripheral set allows this device to have the same peripherals that can be found in different ST microcontroller families including 32-bit families. This makes any transition to a different family very easy, supported also by the use of a common set of development tools.

STM8L050J3 as all the value line STM8L ultra-low-power products are based on the same architecture with the same memory mapping and a coherent pinout.

  • All features

    • Operating conditions
      • Operating power supply: 1.8 V to 3.6 V Temperature range: -40 °C to 125 °C
    • Low-power features
      • 5 low-power modes: Wait, Low-power run (5.1 µA), Low-power wait (3 µA), Active-halt with RTC (1.3 µA), Halt (350 nA)
      • Ultra-low leakage per I/O: 50 nA
      • Fast wakeup from Halt: 5 µs
    • Advanced STM8 core
      • Harvard architecture and 3-stage pipeline
      • Max freq: 16 MHz, 16 CISC MIPS peak
      • Up to 6 external interrupt sources
    • Reset and supply management
      • Low power, ultra-safe BOR reset with 5 selectable thresholds
      • Ultra-low power POR/PDR
      • Programmable voltage detector (PVD)
    • Clock management
      • 32 kHz and 1 to 16 MHz crystal oscillators
      • Internal 16 MHz factory-trimmed RC
      • Internal 38 kHz low consumption RC
      • Clock security system
    • Low-power RTC
      • BCD calendar with alarm interrupt
      • Digital calibration with +/- 0.5 ppm accuracy
      • LSE security system
      • Auto-wakeup from Halt w/ periodic interrupt
    • Memories
      • 8 Kbytes of Flash program memory and 256 bytes of data EEPROM with ECC
      • Flexible write and read protection modes
      • 1 Kbyte of RAM
    • DMA
      • 4 channels supporting ADC, SPI, I2C, USART, timers
      • 1 channel for memory-to-memory
    • 12-bit ADC up to 1 Msps/4 channels
      • Internal reference voltage
    • Timers
      • Two 16-bit timers with 2 channels (used as IC, OC, PWM), quadrature encoder
      • One 8-bit timer with 7-bit prescaler
      • 2 watchdogs: 1 Window, 1 Independent
      • Beeper timer with 1, 2 or 4 kHz frequencies
    • Communication interfaces
      • Synchronous serial interface (SPI)
      • Fast I2C 400 kHz SMBus and PMBus
      • USART
    • Up to 6 I/Os, all mappable on interrupt vectors
    • Development support
      • Fast on-chip programming and non-intrusive debugging with SWIM
      • Bootloader using USART
    • Two ultra-low-power comparators
      • One with fixed threshold and another one with rail to rail
    • Wakeup capability

Circuit Diagram

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      AP350/SG5000 Automatic System

      Active

      Automatic programmers for STM MCUs series & PMUs

      Hardware Development Tools from Partners System General
      AP350/SG5000 Automatic System

      Description:

      Automatic programmers for STM MCUs series & PMUs

      CXSTM8

      Active

      C Compiler and associated tools for the STM8 family

      Software Development Tools from Partners Cosmic Software
      CXSTM8

      Description:

      C Compiler and associated tools for the STM8 family

      IAR C-STAT

      Active

      Static analysis tool, add-on to IAR Embedded Workbench

      Software Development Tools from Partners IAR Systems
      IAR C-STAT

      Description:

      Static analysis tool, add-on to IAR Embedded Workbench

      IAR Embedded Workbench for STM8 - Functional Safety

      Active

      Functional safety edition of IAR Embedded Workbench for STM8

      Software Development Tools from Partners IAR Systems
      IAR Embedded Workbench for STM8 - Functional Safety

      Description:

      Functional safety edition of IAR Embedded Workbench for STM8

      IAR Visual State

      Active

      State-machine modelling tool

      Software Development Tools from Partners IAR Systems
      IAR Visual State

      Description:

      State-machine modelling tool

      Lauterbach PowerDebug for STM8

      Active

      Debug Solution for STM8 series

      Hardware Development Tools from Partners Lauterbach
      Lauterbach PowerDebug for STM8

      Description:

      Debug Solution for STM8 series

      Production Flash Programmer

      Active

      Flash and Gang Programmer for STM32, STM8, and BlueNRG MCUs

      Hardware Development Tools from Partners Elprotronic
      Production Flash Programmer

      Description:

      Flash and Gang Programmer for STM32, STM8, and BlueNRG MCUs

      SENSE

      Active

      End-to-end solution for the design & system-level simulation of capacitive touch sensors

      Software Development Tools from Partners Fieldscale
      SENSE

      Description:

      End-to-end solution for the design & system-level simulation of capacitive touch sensors

      T9800/SG8000 Device Programmer

      Active

      Universal programmers for ST MCUs series & PMUs

      Hardware Development Tools from Partners System General
      T9800/SG8000 Device Programmer

      Description:

      Universal programmers for ST MCUs series & PMUs

      winIDEA-STM8

      Active

      Complete software development and test solution for STM8

      Software Development Tools from Partners iSYSTEM
      winIDEA-STM8

      Description:

      Complete software development and test solution for STM8
    • Part number
      Status
      Description
      Type
      Supplier

      TEConcept IO-Link Device Software Stack

      Active

      Way to integrate state-of-the-art IO-Link technology

      Embedded Software from Partners TEConcept
      TEConcept IO-Link Device Software Stack

      Description:

      Way to integrate state-of-the-art IO-Link technology

      TapKo KNX KAIstack

      Active

      KAIstack together with EnergyLite for STM8 and STM32

      Embedded Software from Partners TAPKO Technologies
      TapKo KNX KAIstack

      Description:

      KAIstack together with EnergyLite for STM8 and STM32

      Tuxera Bootloaders

      Active

      Optimized high quality solutions bootloaders

      Embedded Software from Partners Tuxera
      Tuxera Bootloaders

      Description:

      Optimized high quality solutions bootloaders

      Tuxera FAT File System

      Active

      FAT File systems for flash storage media

      Embedded Software from Partners Tuxera
      Tuxera FAT File System

      Description:

      FAT File systems for flash storage media

      Tuxera Fail-safe File System

      Active

      All Flash File Systems with fail-safe mechanisms for STM32

      Embedded Software from Partners Tuxera
      Tuxera Fail-safe File System

      Description:

      All Flash File Systems with fail-safe mechanisms for STM32
    • Part number
      Status
      Description
      Type
      Supplier

      ST-LINK/V2

      Active

      ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32

      Hardware Debugger and Programmer Tools for STM32 ST
      ST-LINK/V2

      Description:

      ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32

      STLINK-V3SET

      Active

      STLINK-V3 modular in-circuit debugger and programmer for STM32/STM8

      Hardware Debugger and Programmer Tools for STM32 ST
      STLINK-V3SET

      Description:

      STLINK-V3 modular in-circuit debugger and programmer for STM32/STM8
    • Part number
      Status
      Description
      Type
      Supplier

      STM8-SafeCLASSB

      Active

      Functional safety package to achieve IEC 60730 Class B certification with the STM8

      STM8 Embedded Software ST
      STM8-SafeCLASSB

      Description:

      Functional safety package to achieve IEC 60730 Class B certification with the STM8

      STM8L-TOUCH-LIB

      Active

      STM8L STMTouch touch-sensing library

      STM8 Embedded Software ST
      STM8L-TOUCH-LIB

      Description:

      STM8L STMTouch touch-sensing library

      STSW-STM8004

      Active

      STM8 optimized I2C examples (AN3281)

      STM8 Embedded Software ST
      STSW-STM8004

      Description:

      STM8 optimized I2C examples (AN3281)

      STSW-STM8006

      Active

      Example of implementation of user bootloader (AN2659)

      STM8 Embedded Software ST
      STSW-STM8006

      Description:

      Example of implementation of user bootloader (AN2659)

      STSW-STM8016

      Active

      STM8L15x/16x/05x/AL3Lx/AL31x standard peripheral library

      STM8 Embedded Software ST
      STSW-STM8016

      Description:

      STM8L15x/16x/05x/AL3Lx/AL31x standard peripheral library

      STSW-STM8045

      Active

      Audio software codec for the STM8S

      STM8 Embedded Software ST
      STSW-STM8045

      Description:

      Audio software codec for the STM8S

      STSW-STM8048

      Active

      Precision improvement techniques for the A/D converter of the STM8 microcontroller (AN2719)

      STM8 Embedded Software ST
      STSW-STM8048

      Description:

      Precision improvement techniques for the A/D converter of the STM8 microcontroller (AN2719)

      STSW-STM8049

      Active

      Basic in-application programming example using the STM8 I2C and SPI peripherals (AN2737)

      STM8 Embedded Software ST
      STSW-STM8049

      Description:

      Basic in-application programming example using the STM8 I2C and SPI peripherals (AN2737)

      STSW-STM8061

      Active

      ISO/IEC 15693 and Dual Interface EEPROM library for STM8L microcontrollers (AN3985)

      STM8 Embedded Software ST
      STSW-STM8061

      Description:

      ISO/IEC 15693 and Dual Interface EEPROM library for STM8L microcontrollers (AN3985)

      STSW-STM8062

      Active

      STM8 in-application programming (IAP) using a customized bootloader (AN2659)

      STM8 Embedded Software ST
      STSW-STM8062

      Description:

      STM8 in-application programming (IAP) using a customized bootloader (AN2659)

      STSW-STM8064

      Active

      Setup screensaver STM8 1024x768

      STM8 Embedded Software ST
      STSW-STM8064

      Description:

      Setup screensaver STM8 1024x768

      STSW-STM8065

      Active

      Setup screensaver STM8 1280x1024

      STM8 Embedded Software ST
      STSW-STM8065

      Description:

      Setup screensaver STM8 1280x1024

      STSW-STM8068

      Active

      Erase/write routines for STM8 ROM bootloader (UM0560)

      STM8 Embedded Software ST
      STSW-STM8068

      Description:

      Erase/write routines for STM8 ROM bootloader (UM0560)
    • Part number
      Status
      Description
      Type
      Supplier

      NUCLEO-8L152R8

      Active

      STM8 Nucleo-64 development board with STM8L152R8 MCU, supports Arduino Uno and ST morpho connectivity

      STM8 Nucleo Boards ST
      NUCLEO-8L152R8

      Description:

      STM8 Nucleo-64 development board with STM8L152R8 MCU, supports Arduino Uno and ST morpho connectivity

      STM8-SO8-DISCO

      Active

      Discovery kit with STM8L001J3,STM8L050J3,STM8S001J3 MCUs

      STM8 MCU Eval Boards ST
      STM8-SO8-DISCO

      Description:

      Discovery kit with STM8L001J3,STM8L050J3,STM8S001J3 MCUs

      STM8L-DISCOVERY

      Active

      Discovery kit with STM8L152C6 MCU

      STM8 MCU Eval Boards ST
      STM8L-DISCOVERY

      Description:

      Discovery kit with STM8L152C6 MCU

      STM8L1528-EVAL

      Active

      Evaluation board with STM8L152M8 MCU

      STM8 MCU Eval Boards ST
      STM8L1528-EVAL

      Description:

      Evaluation board with STM8L152M8 MCU
    • Part number
      Status
      Description
      Type
      Supplier

      IAR Academy

      Active

      IAR Academy

      Training from Partners IAR Systems
      IAR Academy

      Description:

      IAR Academy

      NewTec Functional Safety Training

      Active

      NewTec Functional Safety Training

      Training from Partners NewTec
      NewTec Functional Safety Training

      Description:

      NewTec Functional Safety Training

      ST Trainings

      Active

      ST Trainings

      Training from Partners MASTERS
      ST Trainings

      Description:

      ST Trainings
    • Part number
      Status
      Description
      Type
      Supplier

      FLASHER-STM8

      Active

      STM8 Flash loader demonstrator (UM0462)

      STM8 Programmers ST
      FLASHER-STM8

      Description:

      STM8 Flash loader demonstrator (UM0462)

      STM-STUDIO-STM8

      Active

      STM Studio run-time variables monitoring and visualization tool for STM8 microcontrollers

      STM8 Performance and Debuggers ST
      STM-STUDIO-STM8

      Description:

      STM Studio run-time variables monitoring and visualization tool for STM8 microcontrollers

      STM8CubeMX

      Active

      STM8Cube configuration and report tool

      STM8 Configurators and Code Generators ST
      STM8CubeMX

      Description:

      STM8Cube configuration and report tool

      STVD-STM8

      Active

      ST Visual develop IDE for developing ST7 and STM8 applications

      STM8 IDEs ST
      STVD-STM8

      Description:

      ST Visual develop IDE for developing ST7 and STM8 applications

      STVP-LIB-STM8

      Active

      STVP programming toolkit: C++ source files for creating PC programming interface

      STM8 Programmers ST
      STVP-LIB-STM8

      Description:

      STVP programming toolkit: C++ source files for creating PC programming interface

      STVP-STM8

      Active

      ST Visual Programmer STM8

      STM8 Programmers ST
      STVP-STM8

      Description:

      ST Visual Programmer STM8

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STM8L050J3

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.

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM8L050J3M3
Active
SO-8 Industrial Ecopack2
STM8L050J3M3TR
Active
SO-8 Industrial Ecopack2

STM8L050J3M3

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8L050J3M3TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

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

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EAR99 NEC Tape and Reel SO-8 -40 125 CHINA
STM8L050J3M3 Available at distributors

Distributor availability of STM8L050J3M3

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Active
EAR99 NEC Tube SO-8 -40 125 CHINA

STM8L050J3M3TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM8L050J3M3TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Country of Origin:

CHINA

STM8L050J3M3 Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM8L050J3M3

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-40

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors