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STM8L051F3P6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM8L051F3P6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · TSSOP-20
STM8L051F3P6 from STMicroelectronics, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PC5 | bidirectional | Port C5 I/O pin with LSE oscillator input as main function; supports alternate mappings to SPI1 NSS, USART TX, and TIM2 channel 1. |
| 2 | PC6 | bidirectional | Port C6 I/O pin with LSE oscillator output as main function; supports alternate mappings to SPI1 SCK, USART RX, and TIM2 channel 2. |
| 3 | PA0 | bidirectional | Port A0 I/O pin with high-sink LED driver capability (up to 80 mA); functions as SWIM debug interface, beeper output, and infrared timer output. |
| 4 | NRST/PA1 | input | Active-low device reset input with internal pull-up (30-60 kΩ), VIL max 0.8V; can be remapped as Port A1 open-drain or push-pull output only. |
| 5 | PA2 | bidirectional | Port A2 I/O pin with HSE oscillator input as main function; supports alternate mappings to USART TX and SPI MISO. |
| 6 | PA3 | bidirectional | Port A3 I/O pin with HSE oscillator output as main function; supports alternate mappings to USART RX and SPI MOSI. |
| 7 | VSS/VREF-/VSSA | power_in | Ground connections (VSS, VSSA) and ADC negative reference (VREF-), 0V reference potential; must be connected to external power return. |
| 8 | VDD/VDDA/VREF+ | power_in | Power supply (VDD, VDDA) and ADC positive reference (VREF+) connections, 1.8-3.6V operating range, up to 80 mA total output current. |
| 9 | PD0 | bidirectional | Port D0 I/O pin with functions as Timer 3 channel 2 input/output, ADC1 trigger input, and ADC1 analog input channel 22. |
| 10 | PB0 | bidirectional | Port B0 I/O pin; functions as Timer 2 channel 1 input/output and ADC1 analog input channel 18; pull-up applied during reset phase only. |
| 11 | PB1 | bidirectional | Port B1 I/O pin with Timer 3 channel 1 input/output and ADC1 analog input channel 17 functions. |
| 12 | PB2 | bidirectional | Port B2 I/O pin with Timer 2 channel 2 input/output and ADC1 analog input channel 16 functions. |
| 13 | PB3 | bidirectional | Port B3 I/O pin functioning as Timer 2 external trigger input, RTC alarm output, and ADC1 analog input channel 15. |
| 14 | PB4 | bidirectional | Port B4 I/O pin functioning as SPI1 slave select (NSS) input and ADC1 analog input channel 14; pull-up applied during reset phase only. |
| 15 | PB5 | bidirectional | Port B5 I/O pin functioning as SPI1 clock (SCK) input/output and ADC1 analog input channel 13. |
| 16 | PB6 | bidirectional | Port B6 I/O pin functioning as SPI1 master-out/slave-in (MOSI) and ADC1 analog input channel 12. |
| 17 | PB7 | bidirectional | Port B7 I/O pin functioning as SPI1 master-in/slave-out (MISO) and ADC1 analog input channel 11. |
| 18 | PC0 | tri_state | I2C1 data (SDA) pin with true open-drain output, 5-volt tolerant input (up to 5.5V), and integrated weak pull-up (30-60 kΩ). |
| 19 | PC1 | tri_state | I2C1 clock (SCL) pin with true open-drain output, 5-volt tolerant input (up to 5.5V), and integrated weak pull-up (30-60 kΩ). |
| 20 | PC4 | bidirectional | Port C4 I/O pin with USART1 synchronous clock, I2C1 SMBus, configurable clock output, and ADC1 analog input channel 4 functions. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-20 |
| Category | Embedded Processors & Controllers |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
STM8L051F3P6 - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
stm8l051f3p6-etched.step/stm8l051f3p6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm8l051f3p6.step/stm8l051f3p6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (93 pp, sha256
49eab539fe1f16e1, retrieved 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).