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STM32F103C6T7A
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, 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
markdownSTM32F103C6T7A
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)
STM32F103C6T7A from STMicroelectronics, in a LQFP-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VBAT | power_in | Backup power supply for RTC and backup registers, 1.8 to 3.6 V |
| 2 | PC13-TAMPER-RTC | bidirectional | GPIO port C pin 13 with TAMPER-RTC function, output current limited to 3 mA maximum, speed not to exceed 2 MHz with 30 pF load |
| 3 | PC14-OSC32_IN | bidirectional | GPIO port C pin 14, external 32 kHz oscillator input pin |
| 4 | PC15-OSC32_OUT | bidirectional | GPIO port C pin 15, external 32 kHz oscillator output pin |
| 5 | OSC_IN | input | High-speed external clock input pin for 4 to 16 MHz crystal/ceramic resonator oscillator |
| 6 | OSC_OUT | output | High-speed external clock output pin for 4 to 16 MHz crystal/ceramic resonator oscillator |
| 7 | NRST | bidirectional | Active low external reset pin with integrated pull-up resistor and Schmitt trigger input, filtered 100 ns minimum |
| 8 | VSSA | power_in | Analog ground reference for ADC and internal circuitry, must be connected to VSS |
| 9 | VDDA | power_in | Analog power supply for ADC and internal reference voltage, 2.4 to 3.6 V when ADC is used |
| 10 | PA0-WKUP | bidirectional | GPIO port A pin 0 with wakeup capability from Standby mode, alternate functions include USART2_CTS, ADC12_IN0, TIM2_CH1_ETR |
| 11 | PA1 | bidirectional | GPIO port A pin 1, alternate functions include USART2_RTS, ADC12_IN1, TIM2_CH2 |
| 12 | PA2 | bidirectional | GPIO port A pin 2, alternate functions include USART2_TX, ADC12_IN2, TIM2_CH3 |
| 13 | PA3 | bidirectional | GPIO port A pin 3, alternate functions include USART2_RX, ADC12_IN3, TIM2_CH4 |
| 14 | PA4 | bidirectional | GPIO port A pin 4, alternate functions include SPI1_NSS, USART2_CK, ADC12_IN4 |
| 15 | PA5 | bidirectional | GPIO port A pin 5, alternate functions include SPI1_SCK, ADC12_IN5 |
| 16 | PA6 | bidirectional | 5 V tolerant GPIO port A pin 6, alternate functions include SPI1_MISO (default), ADC12_IN6, TIM3_CH1, TIM1_BKIN (remap) |
| 17 | PA7 | bidirectional | 5 V tolerant GPIO port A pin 7, alternate functions include SPI1_MOSI (default), ADC12_IN7, TIM3_CH2, TIM1_CH1N (remap) |
| 18 | PB0 | bidirectional | GPIO port B pin 0, alternate functions include ADC12_IN8, TIM3_CH3 (default), TIM1_CH2N (remap) |
| 19 | PB1 | bidirectional | GPIO port B pin 1, alternate functions include ADC12_IN9, TIM3_CH4 (default), TIM1_CH3N (remap) |
| 20 | PB2 | bidirectional | 5 V tolerant GPIO port B pin 2 with BOOT1 functionality |
| 21 | PB10 | bidirectional | 5 V tolerant GPIO port B pin 10, alternate functions include TIM2_CH3 (remap) |
| 22 | PB11 | bidirectional | 5 V tolerant GPIO port B pin 11, alternate functions include TIM2_CH4 (remap) |
| 23 | VSS_1 | power_in | Ground reference for main power supply |
| 24 | VDD_1 | power_in | Main power supply for I/Os and core, 2.0 to 3.6 V |
| 25 | PB12 | bidirectional | 5 V tolerant GPIO port B pin 12, alternate functions include TIM1_BKIN |
| 26 | PB13 | bidirectional | 5 V tolerant GPIO port B pin 13, alternate functions include TIM1_CH1N |
| 27 | PB14 | bidirectional | 5 V tolerant GPIO port B pin 14, alternate functions include TIM1_CH2N |
| 28 | PB15 | bidirectional | 5 V tolerant GPIO port B pin 15, alternate functions include TIM1_CH3N |
| 29 | PA8 | bidirectional | 5 V tolerant GPIO port A pin 8, alternate functions include USART1_CK, TIM1_CH1, MCO (microcontroller clock output) |
| 30 | PA9 | bidirectional | 5 V tolerant GPIO port A pin 9, alternate functions include USART1_TX (default), TIM1_CH2 (default) |
| 31 | PA10 | bidirectional | 5 V tolerant GPIO port A pin 10, alternate functions include USART1_RX (default), TIM1_CH3 |
| 32 | PA11 | bidirectional | 5 V tolerant GPIO port A pin 11, alternate functions include USART1_CTS, CAN_RX (default), TIM1_CH4, USBDM |
| 33 | PA12 | bidirectional | 5 V tolerant GPIO port A pin 12, alternate functions include USART1_RTS, CAN_TX (default), TIM1_ETR, USBDP |
| 34 | PA13 | bidirectional | 5 V tolerant JTMS/SWDIO debug pin for JTAG and serial wire debug interface |
| 35 | VSS_2 | power_in | Ground reference for main power supply |
| 36 | VDD_2 | power_in | Main power supply for I/Os and core, 2.0 to 3.6 V |
| 37 | PA14 | bidirectional | 5 V tolerant JTCK/SWCLK debug pin for JTAG and serial wire debug interface |
| 38 | PA15 | bidirectional | 5 V tolerant JTDI debug pin, alternate functions include TIM2_CH1_ETR (remap), SPI1_NSS (remap) |
| 39 | PB3 | bidirectional | 5 V tolerant JTDO debug pin, alternate functions include TIM2_CH2 (remap), TRACESWO (remap) |
| 40 | PB4 | bidirectional | 5 V tolerant NJTRST debug pin, alternate functions include TIM3_CH1 (remap), SPI1_MISO (remap) |
| 41 | PB5 | bidirectional | GPIO port B pin 5, alternate functions include I2C1_SMBA, TIM3_CH2 (remap), SPI1_MOSI (remap) |
| 42 | PB6 | bidirectional | 5 V tolerant GPIO port B pin 6, alternate functions include I2C1_SCL (default), USART1_TX |
| 43 | PB7 | bidirectional | 5 V tolerant GPIO port B pin 7, alternate functions include I2C1_SDA (default), USART1_RX |
| 44 | BOOT0 | input | Boot mode selection pin sampled at power-up and external reset to select boot from User Flash, System Memory, or embedded SRAM |
| 45 | PB8 | bidirectional | 5 V tolerant GPIO port B pin 8, alternate functions include I2C1_SCL (remap), CAN_RX (remap) |
| 46 | PB9 | bidirectional | 5 V tolerant GPIO port B pin 9, alternate functions include I2C1_SDA (remap), CAN_TX (remap) |
| 47 | VSS_3 | power_in | Ground reference for main power supply |
| 48 | VDD_3 | power_in | Main power supply for I/Os and core, 2.0 to 3.6 V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-48(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 48 |
CAD (KiCad official)
- Symbol:
STM32F103C6T7A - Footprint:
Package_QFP:LQFP-48_7x7mm_P0.5mm - 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files:
stm32f103c6t7a-etched.step/stm32f103c6t7a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f103c6t7a.step/stm32f103c6t7a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (99 pp, sha256
31ab1fe3de6e6cf3, 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).