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STM8S103F2P6TR

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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STM8S103F2P6TR

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · TSSOP-20

STM8S103F2P6TR 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 PD4 bidirectional Timer 2 channel 1 / BEEP output / UART1 clock; general-purpose I/O with high sink output capability (HS), output speed O3.
2 PD5 bidirectional UART1 transmit data output (AIN5) / analog input 5; general-purpose I/O with high sink capability (HS), output speed O3.
3 PD6 bidirectional UART1 receive data input (AIN6) / analog input 6; general-purpose I/O with high sink capability (HS), output speed O3.
4 NRST input External reset input pin; active low resets the device with internal weak pull-up resistor.
5 PA1 input Oscillator crystal input (OSCIN) or general-purpose I/O; operates at 1.8 to 5.5 V with output speed O1.
6 PA2 output Oscillator crystal output (OSCOUT) or general-purpose I/O; operates at 1.8 to 5.5 V with output speed O1.
7 VSS power_in Digital ground reference (0 V).
8 VCAP passive 1.8 V internal regulator power supply bypass capacitor; requires 1 µF to 10 µF ceramic capacitor.
9 VDD power_in Positive digital power supply pin; operating voltage range 2.95 to 5.5 V.
10 PA3 bidirectional Timer 2 channel 3 / SPI slave select (NSS) [AFR1 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
11 PB5 bidirectional I²C data line (I²C_SDA) with true open-drain output / Timer 1 break input (TIM1_BKIN) [AFR4 remapping]; output speed O1 with true open drain.
12 PB4 bidirectional I²C clock line (I²C_SCL) with true open-drain output / ADC external trigger (ADC_ETR) [AFR4 remapping]; output speed O1 with true open drain.
13 PC3 bidirectional Timer 1 channel 3 output / top-level interrupt (TLI) [AFR3 remapping] / Timer 1 channel 1N complementary output [AFR7 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
14 PC4 bidirectional Timer 1 channel 4 output / configurable clock output (CLK_CCO) / analog input 2 (AIN2) / Timer 1 channel 2N complementary output [AFR7 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
15 PC5 bidirectional SPI clock (SPI_SCK) / Timer 2 channel 1 output [AFR0 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
16 PC6 bidirectional SPI master-out/slave-in (SPI_MOSI) / Timer 1 channel 1 output [AFR0 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
17 PC7 bidirectional SPI master-in/slave-out (SPI_MISO) / Timer 1 channel 2 output [AFR0 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
18 PD1 bidirectional SWIM (single-wire interface module) data interface for on-chip debugging and programming; weak pull-up during reset phase; general-purpose I/O with high sink capability (HS), output speed O4.
19 PD2 bidirectional Analog input 3 (AIN3) / Timer 2 channel 3 output [AFR1 remapping]; general-purpose I/O with high sink capability (HS), output speed O3.
20 PD3 bidirectional Analog input 4 (AIN4) / Timer 2 channel 2 output / ADC external trigger input (ADC_ETR); general-purpose I/O with high sink capability (HS), output speed O3.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TSSOP-20
Category Embedded Processors & Controllers
Pins 20

CAD (KiCad official)

  • Symbol: STM8S103F2P6TR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: stm8s103f2p6tr-etched.step / stm8s103f2p6tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm8s103f2p6tr.step / stm8s103f2p6tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (113 pp, sha256 9f8cfb286f831178, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (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).

Datasheet PDF