STM8L051F3

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

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Product overview

Description

STM8L051F3 is member of the STM8L ultra-low-power 8-bit family.

STM8L051F3 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 STM8L051F3 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, 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.

STM8L051F3 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 85 °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 40 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/10 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 18 I/Os, all mappable on interrupt vectors
    • Development support
      • Fast on-chip programming and non-intrusive debugging with SWIM
      • Bootloader using USART

Circuit Diagram

EDA Symbols, Footprints and 3D Models

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM8L051F3P6
Active
TSSOP-20 Industrial Ecopack2
STM8L051F3P6TR
Active
TSSOP-20 Industrial Ecopack2

STM8L051F3P6

Package:

TSSOP-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-20

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8L051F3P6TR

Package:

TSSOP-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-20

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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Part Number
Marketing Status
Budgetary Price (US$)*/Qty
Order from ST
Order from distributors
Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Operating temperature (°C)
min
max
STM8L051F3P6
Active
0.3286 / 10k
Available at 4 distributors

Distributor availability of STM8L051F3P6

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 51877 1
ANGLIA Live EUROPE 2609 1
MOUSER WORLDWIDE 18314 1
DIGIKEY WORLDWIDE 7917 1

Distributor reported inventory date: 3/13/2025

TSSOP-20 Tube CHINA EAR99 NEC -40 85
STM8L051F3P6TR
Active
0.3286 / 10k
Available at 4 distributors

Distributor availability of STM8L051F3P6TR

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 39340 1
MOUSER WORLDWIDE 55542 1
FUTURE WORLDWIDE 5000 0
DIGIKEY WORLDWIDE 2945 1

Distributor reported inventory date: 3/13/2025

TSSOP-20 Tape and Reel CHINA EAR99 NEC -40 85

STM8L051F3P6 Active

Budgetary Price (US$)*/Qty:
0.3286 / 10k
Package:
TSSOP-20
Packing Type:
Tube
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

Part Number:

STM8L051F3P6

Operating Temperature (°C)

Min:

-40

Max:

85

Distributor Name

Farnell Element14

Stock

51877

Min.Order

1

ANGLIA Live

Stock

2609

Min.Order

1

MOUSER

Stock

18314

Min.Order

1

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

7917

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 3/13/2025

STM8L051F3P6TR Active

Budgetary Price (US$)*/Qty:
0.3286 / 10k
Package:
TSSOP-20
Packing Type:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

Part Number:

STM8L051F3P6TR

Operating Temperature (°C)

Min:

-40

Max:

85

Distributor Name

Farnell Element14

Stock

39340

Min.Order

1

MOUSER

Stock

55542

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

5000

Min.Order

0

Region

WORLDWIDE Buy from Distributor

DIGIKEY

Stock

2945

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 3/13/2025

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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