STM8L051F3P6TR

@@ -0,0 +1,60 @@+# STM8L051F3P6TR++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · TSSOP-20++STM8L051F3P6TR from STMicroelectronics, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | PC5/OSC32_IN/[SPI1_NSS]/[USART_TX]/TIM2_CH1 | bidirectional | Port C bit 5 general-purpose I/O (5 V tolerant not indicated; high-sink 20 mA output). Alternate functions: LSE oscillator input (OSC32_IN), remappable SPI1_NSS or USART_TX, and TIM2 channel 1 capture/compare. |+| 2 | PC6/OSC32_OUT/[SPI_SCK]/[USART_RX]/TIM2_CH2 | bidirectional | Port C bit 6 general-purpose I/O (high-sink 20 mA). Alternate functions: LSE oscillator output (OSC32_OUT), remappable SPI clock or USART_RX, and TIM2 channel 2 capture/compare. |+| 3 | PA0/[USART_CK]/SWIM/BEEP/IR_TIM | bidirectional | Port A bit 0 general-purpose I/O with high-sink LED-driver capability. Serves as the SWIM single-wire debug/programming pin, and provides BEEP output, IR timer output, or optional USART synchronous clock. |+| 4 | NRST/PA1 | bidirectional | Active-low device reset input with internal pull-up (high-sink output when used as GPIO). Can be reconfigured via option byte as general-purpose PA1 output (open-drain or push-pull); do not use as a general-purpose input. |+| 5 | PA2/OSC_IN/[USART_TX]/[SPI_MISO] | bidirectional | Port A bit 2 general-purpose I/O (high-sink 20 mA). Alternate functions: HSE crystal oscillator input (OSC_IN), remappable USART transmit or SPI master-in/slave-out. |+| 6 | PA3/OSC_OUT/[USART_RX]/[SPI_MOSI] | bidirectional | Port A bit 3 general-purpose I/O (high-sink 20 mA). Alternate functions: HSE crystal oscillator output (OSC_OUT), remappable USART receive or SPI master-out/slave-in. |+| 7 | VSS/VSSA/VREF- | power_in | Combined digital ground, analog ground and ADC1 negative reference. Tie to system ground (0 V). |+| 8 | VDD/VDDA/VREF+ | power_in | Combined digital supply, analog supply and ADC1 positive voltage reference. 1.8 V to 3.6 V operating range; decouple locally. |+| 9 | PD0/TIM3_CH2/[ADC1_TRIG]/ADC1_IN22 | bidirectional | Port D bit 0 general-purpose I/O (high-sink 20 mA). Alternate functions: TIM3 channel 2 capture/compare, remappable ADC1 external trigger input, and ADC1 analog input channel 22. |+| 10 | PB0/TIM2_CH1/ADC1_IN18 | bidirectional | Port B bit 0 general-purpose I/O (high-sink 20 mA). Alternate functions: TIM2 channel 1 capture/compare and ADC1 analog input channel 18. |+| 11 | PB1/TIM3_CH1/ADC1_IN17 | bidirectional | Port B bit 1 general-purpose I/O (high-sink 20 mA). Alternate functions: TIM3 channel 1 capture/compare and ADC1 analog input channel 17. |+| 12 | PB2/TIM2_CH2/ADC1_IN16 | bidirectional | Port B bit 2 general-purpose I/O (high-sink 20 mA). Alternate functions: TIM2 channel 2 capture/compare and ADC1 analog input channel 16. |+| 13 | PB3/TIM2_ETR/ADC1_IN15/RTC_ALARM | bidirectional | Port B bit 3 general-purpose I/O (high-sink 20 mA). Alternate functions: TIM2 external trigger, ADC1 analog input channel 15, and RTC alarm output. |+| 14 | PB4/SPI1_NSS/ADC1_IN14 | bidirectional | Port B bit 4 general-purpose I/O (high-sink 20 mA). Alternate functions: SPI1 master/slave select (NSS) and ADC1 analog input channel 14. |+| 15 | PB5/SPI_SCK/ADC1_IN13 | bidirectional | Port B bit 5 general-purpose I/O (high-sink 20 mA). Alternate functions: SPI1 clock and ADC1 analog input channel 13. |+| 16 | PB6/SPI1_MOSI/ADC1_IN12 | bidirectional | Port B bit 6 general-purpose I/O (high-sink 20 mA). Alternate functions: SPI1 master-out/slave-in (MOSI) and ADC1 analog input channel 12. |+| 17 | PB7/SPI1_MISO/ADC1_IN11 | bidirectional | Port B bit 7 general-purpose I/O (high-sink 20 mA). Alternate functions: SPI1 master-in/slave-out (MISO) and ADC1 analog input channel 11. |+| 18 | PC0/I2C_SDA | bidirectional | Port C bit 0 general-purpose I/O, 5 V tolerant (FT), true open-drain output only. Alternate function: I2C1 data line (SDA). |+| 19 | PC1/I2C_SCL | bidirectional | Port C bit 1 general-purpose I/O, 5 V tolerant (FT), true open-drain output only. Alternate function: I2C1 clock line (SCL). |+| 20 | PC4/USART_CK/I2C_SMB/CCO/ADC1_IN4 | bidirectional | Port C bit 4 general-purpose I/O (high-sink 20 mA). Alternate functions: USART synchronous clock, I2C SMBus alert, configurable clock output (CCO), and ADC1 analog input channel 4 (fast channel). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TSSOP-20 |+| Category | MCU |+| Pins | 20 |++## Ordering variants++- `STM8L051F3P6TRP6`+- `STM8L051F3P6TRP6TR`++## CAD (KiCad official)++- Symbol: `STM8L051F3P6TR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/stm8l051f3p6tr.pdf) (93 pp, sha256 `4db2aed5fb3f8c22`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm8l051f3p6tr-datasheet.pdf)

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