STM8S103K3T6C

@@ -0,0 +1,80 @@+# STM8S103K3T6C++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)++STM8S103K3T6C from STMicroelectronics, in a LQFP-32(7x7). 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 | NRST | bidirectional | Bidirectional device reset pin, active low. Internal pull-up holds the pin high; drive low to force a reset. Reset state is input with weak pull-up. |+| 2 | PA1/OSCIN | bidirectional | Port A1 general-purpose I/O; alternate function is the HSE resonator/crystal input (OSCIN). Slow (O1) push-pull/open-drain output. In Halt/Active-halt mode PA1 is auto-configured as input weak pull-up and cannot wake the device. |+| 3 | PA2/OSCOUT | bidirectional | Port A2 general-purpose I/O; alternate function is the HSE resonator/crystal output (OSCOUT). Slow (O1) push-pull/open-drain output. |+| 4 | VSS | power_in | Digital ground reference. |+| 5 | VCAP | passive | 1.8 V internal regulator decoupling capacitor pin. Connect an external ceramic capacitor to VSS as specified in the VCAP external capacitor section of the datasheet. |+| 6 | VDD | power_in | Digital power supply, operating range 2.95 V to 5.5 V. |+| 7 | PA3/TIM2_CH3/[SPI_NSS] | bidirectional | Port A3 GPIO with high-sink capability. Default alternate function: TIM2 channel 3. Remapped alternate function: SPI master/slave select (SPI_NSS) via option bit AFR1. |+| 8 | PF4 | bidirectional | Port F4 general-purpose I/O. Slow (O1) push-pull/open-drain output, no external interrupt or high-sink capability. |+| 9 | PB7 | bidirectional | Port B7 general-purpose I/O with external interrupt capability. Slow (O1) push-pull/open-drain output. |+| 10 | PB6 | bidirectional | Port B6 general-purpose I/O with external interrupt capability. Slow (O1) push-pull/open-drain output. |+| 11 | PB5/I2C_SDA | bidirectional | Port B5 GPIO / I2C data (SDA). True open-drain output (no P-buffer, no pull-up, no VDD protection diode) - requires an external pull-up. I2C up to 400 kbit/s. |+| 12 | PB4/I2C_SCL | bidirectional | Port B4 GPIO / I2C clock (SCL). True open-drain output (no P-buffer, no pull-up, no VDD protection diode) - requires an external pull-up. I2C up to 400 kbit/s. |+| 13 | PB3/AIN3/TIM1_ETR | bidirectional | Port B3 GPIO with high-sink capability. Alternate functions: ADC analog input 3 (AIN3) and TIM1 external trigger input (TIM1_ETR). |+| 14 | PB2/AIN2/TIM1_CH3N | bidirectional | Port B2 GPIO with high-sink capability. Alternate functions: ADC analog input 2 (AIN2) and TIM1 inverted channel 3 output (TIM1_CH3N). |+| 15 | PB1/AIN1/TIM1_CH2N | bidirectional | Port B1 GPIO with high-sink capability. Alternate functions: ADC analog input 1 (AIN1) and TIM1 inverted channel 2 output (TIM1_CH2N). |+| 16 | PB0/AIN0/TIM1_CH1N | bidirectional | Port B0 GPIO with high-sink capability. Alternate functions: ADC analog input 0 (AIN0) and TIM1 inverted channel 1 output (TIM1_CH1N). |+| 17 | PE5/SPI_NSS | bidirectional | Port E5 GPIO with high-sink capability. Default alternate function: SPI master/slave select (SPI_NSS). |+| 18 | PC1/TIM1_CH1/UART1_CK | bidirectional | Port C1 GPIO with high-sink capability. Default alternate function: TIM1 channel 1 and UART1 synchronous clock output (UART1_CK). |+| 19 | PC2/TIM1_CH2 | bidirectional | Port C2 GPIO with high-sink capability. Default alternate function: TIM1 channel 2. |+| 20 | PC3/TIM1_CH3 | bidirectional | Port C3 GPIO with high-sink capability. Default alternate function: TIM1 channel 3. |+| 21 | PC4/TIM1_CH4/CLK_CCO | bidirectional | Port C4 GPIO with high-sink capability. Default alternate function: TIM1 channel 4 and configurable clock output (CLK_CCO). |+| 22 | PC5/SPI_SCK | bidirectional | Port C5 GPIO with high-sink capability. Default alternate function: SPI clock (SPI_SCK), up to 8 Mbit/s. |+| 23 | PC6/SPI_MOSI | bidirectional | Port C6 GPIO with high-sink capability. Default alternate function: SPI master-out/slave-in (SPI_MOSI). |+| 24 | PC7/SPI_MISO | bidirectional | Port C7 GPIO with high-sink capability. Default alternate function: SPI master-in/slave-out (SPI_MISO). |+| 25 | PD0/TIM1_BKIN/[CLK_CCO] | bidirectional | Port D0 GPIO with high-sink capability. Default alternate function: TIM1 break input (TIM1_BKIN). Remapped alternate function: configurable clock output (CLK_CCO) via option bit AFR5. |+| 26 | PD1/SWIM | bidirectional | Port D1 GPIO with high-sink capability. Default alternate function: SWIM (Single Wire Interface Module) data - used for on-chip programming and non-intrusive debugging. Pin is input pull-up during and after reset release. |+| 27 | PD2/[TIM2_CH3] | bidirectional | Port D2 GPIO with high-sink capability. Remapped alternate function: TIM2 channel 3 via option bit AFR1. |+| 28 | PD3/TIM2_CH2/ADC_ETR | bidirectional | Port D3 GPIO with high-sink capability. Default alternate functions: TIM2 channel 2 and ADC external trigger (ADC_ETR). |+| 29 | PD4/BEEP/TIM2_CH1 | bidirectional | Port D4 GPIO with high-sink capability. Default alternate functions: TIM2 channel 1 and BEEP output (beeper). |+| 30 | PD5/UART1_TX | bidirectional | Port D5 GPIO with high-sink capability. Default alternate function: UART1 data transmit (UART1_TX). UART1 supports asynchronous, synchronous, Smartcard, IrDA, LIN master modes. |+| 31 | PD6/UART1_RX | bidirectional | Port D6 GPIO with high-sink capability. Default alternate function: UART1 data receive (UART1_RX). |+| 32 | PD7/TLI/[TIM1_CH4] | bidirectional | Port D7 GPIO with high-sink capability. Default alternate function: top-level interrupt (TLI). Remapped alternate function: TIM1 channel 4 via option bit AFR6. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-32(7x7) |+| Category | MCU |+| Pins | 32 |++## Ordering variants++- `STM8S103K3T6C`+- `STM8S103K3T6CT3C`+- `STM8S103K3T6CU6`+- `STM8S103K3T6CU3`+- `STM8S103K3T6CB6`+- `STM8S103K3T6CB3`+- `STM8S103K3T6CP6`+- `STM8S103K3T6CP3`+- `STM8S103K3T6CM6`+- `STM8S103K3T6CM3`++## CAD (KiCad official)++- Symbol: `STM8S103K3T6C`+- Footprint: `Package_QFP:LQFP-32_7x7mm_P0.8mm`+- 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/stm8s103k3t6c.pdf) (117 pp, sha256 `1574cc17747269f6`, 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/stm8s103k3t6c-datasheet.pdf)