component
STM32F103R8T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). 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
markdownSTM32F103R8T6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32F103R8T6 from STMicroelectronics, in a LQFP-64(10x10). 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 | VBAT | power_in | Backup domain power supply 1.8-3.6V for RTC and backup registers |
| 2 | PC13-TAMPER-RTC | bidirectional | PC13 GPIO or TAMPER-RTC alternate function |
| 3 | PC14-OSC32_IN | bidirectional | PC14 GPIO or low-speed 32.768 kHz oscillator input |
| 4 | PC15-OSC32_OUT | bidirectional | PC15 GPIO or low-speed 32.768 kHz oscillator output |
| 5 | OSC_IN (PD0) | input | High-speed 4-16 MHz oscillator input or remappable PD0 GPIO |
| 6 | OSC_OUT (PD1) | output | High-speed 4-16 MHz oscillator output or remappable PD1 GPIO |
| 7 | NRST | bidirectional | Active-low asynchronous reset pin with internal 40-50kΩ pull-up |
| 8 | PC0 | bidirectional | GPIO PC0 or ADC12_IN10 analog input 0-VDDA |
| 9 | PC1 | bidirectional | GPIO PC1 or ADC12_IN11 analog input 0-VDDA |
| 10 | PC2 | bidirectional | GPIO PC2 or ADC12_IN12 analog input 0-VDDA |
| 11 | PC3 | bidirectional | GPIO PC3 or ADC12_IN13 analog input 0-VDDA |
| 12 | VSSA | power_in | Analog ground reference |
| 13 | VDDA | power_in | Analog power supply 2.4-3.6V minimum when ADC is used |
| 14 | PA0-WKUP | bidirectional | GPIO PA0 or wake-up pin or USART2_CTS or ADC12_IN0 or TIM2_CH1_ETR |
| 15 | PA1 | bidirectional | GPIO PA1 or USART2_RTS or ADC12_IN1 or TIM2_CH2 |
| 16 | PA2 | bidirectional | GPIO PA2 or USART2_TX or ADC12_IN2 or TIM2_CH3 |
| 17 | PA3 | bidirectional | GPIO PA3 or USART2_RX or ADC12_IN3 or TIM2_CH4 |
| 18 | VSS_4 | power_in | Ground |
| 19 | VDD_4 | power_in | Main power supply 2.0-3.6V |
| 20 | PA4 | bidirectional | GPIO PA4 or SPI1_NSS or USART2_CK or ADC12_IN4 |
| 21 | PA5 | bidirectional | GPIO PA5 or SPI1_SCK or ADC12_IN5 |
| 22 | PA6 | bidirectional | GPIO PA6 or SPI1_MISO or ADC12_IN6 or TIM3_CH1 or TIM1_BKIN |
| 23 | PA7 | bidirectional | GPIO PA7 or SPI1_MOSI or ADC12_IN7 or TIM3_CH2 or TIM1_CH1N |
| 24 | PC4 | bidirectional | GPIO PC4 or ADC12_IN14 analog input |
| 25 | PC5 | bidirectional | GPIO PC5 or ADC12_IN15 analog input |
| 26 | PB0 | bidirectional | GPIO PB0 or ADC12_IN8 or TIM3_CH3 or TIM1_CH2N |
| 27 | PB1 | bidirectional | GPIO PB1 or ADC12_IN9 or TIM3_CH4 or TIM1_CH3N |
| 28 | PB2 | bidirectional | GPIO PB2/BOOT1 for selecting boot source |
| 29 | PB10 | bidirectional | GPIO PB10 or I2C2_SCL or USART3_TX or TIM2_CH3 |
| 30 | PB11 | bidirectional | GPIO PB11 or I2C2_SDA or USART3_RX or TIM2_CH4 |
| 31 | VSS_1 | power_in | Ground |
| 32 | VDD_1 | power_in | Main power supply 2.0-3.6V |
| 33 | PB12 | bidirectional | GPIO PB12 or SPI2_NSS or I2C2_SMBA or USART3_CK or TIM1_BKIN |
| 34 | PB13 | bidirectional | GPIO PB13 or SPI2_SCK or USART3_CTS or TIM1_CH1N |
| 35 | PB14 | bidirectional | GPIO PB14 or SPI2_MISO or USART3_RTS or TIM1_CH2N |
| 36 | PB15 | bidirectional | GPIO PB15 or SPI2_MOSI or TIM1_CH3N |
| 37 | PC6 | bidirectional | 5V-tolerant GPIO PC6 or TIM3_CH1 |
| 38 | PC7 | bidirectional | 5V-tolerant GPIO PC7 or TIM3_CH2 |
| 39 | PC8 | bidirectional | 5V-tolerant GPIO PC8 or TIM3_CH3 |
| 40 | PC9 | bidirectional | 5V-tolerant GPIO PC9 or TIM3_CH4 |
| 41 | PA8 | bidirectional | 5V-tolerant GPIO PA8 or USART1_CK or TIM1_CH1 or MCO clock output |
| 42 | PA9 | bidirectional | 5V-tolerant GPIO PA9 or USART1_TX or TIM1_CH2 |
| 43 | PA10 | bidirectional | 5V-tolerant GPIO PA10 or USART1_RX or TIM1_CH3 |
| 44 | PA11 | bidirectional | 5V-tolerant GPIO PA11 or USART1_CTS or CANRX or USBDM or TIM1_CH4 |
| 45 | PA12 | bidirectional | 5V-tolerant GPIO PA12 or USART1_RTS or CANTX or USBDP or TIM1_ETR |
| 46 | PA13 | bidirectional | 5V-tolerant JTMS/SWDIO serial-wire and JTAG debug interface |
| 47 | VSS_2 | power_in | Ground |
| 48 | VDD_2 | power_in | Main power supply 2.0-3.6V |
| 49 | PA14 | bidirectional | 5V-tolerant JTCK/SWCLK serial-wire and JTAG debug interface |
| 50 | PA15 | bidirectional | 5V-tolerant JTDI debug interface or GPIO PA15 or TIM2_CH1_ETR or SPI1_NSS |
| 51 | PC10 | bidirectional | 5V-tolerant GPIO PC10 or USART3_TX |
| 52 | PC11 | bidirectional | 5V-tolerant GPIO PC11 or USART3_RX |
| 53 | PC12 | bidirectional | 5V-tolerant GPIO PC12 or USART3_CK |
| 54 | PD2 | bidirectional | 5V-tolerant GPIO PD2 or TIM3_ETR |
| 55 | PB3 | bidirectional | 5V-tolerant JTDO debug interface or GPIO PB3 or TIM2_CH2 or SPI1_SCK or TRACESWO |
| 56 | PB4 | bidirectional | 5V-tolerant JNTRST debug interface or GPIO PB4 or TIM3_CH1 or SPI1_MISO |
| 57 | PB5 | bidirectional | GPIO PB5 or I2C1_SMBA or TIM3_CH2 or SPI1_MOSI |
| 58 | PB6 | bidirectional | 5V-tolerant GPIO PB6 or I2C1_SCL or TIM4_CH1 or USART1_TX |
| 59 | PB7 | bidirectional | 5V-tolerant GPIO PB7 or I2C1_SDA or TIM4_CH2 or USART1_RX |
| 60 | BOOT0 | input | Boot mode selection input strapped to VSS for normal operation or VDD for bootloader |
| 61 | PB8 | bidirectional | 5V-tolerant GPIO PB8 or TIM4_CH3 or I2C1_SCL or CANRX |
| 62 | PB9 | bidirectional | 5V-tolerant GPIO PB9 or TIM4_CH4 or I2C1_SDA or CANTX |
| 63 | VSS_3 | power_in | Ground |
| 64 | VDD_3 | power_in | Main power supply 2.0-3.6V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32F103R8T6 - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32f103r8t6-etched.step/stm32f103r8t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f103r8t6.step/stm32f103r8t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (105 pp, sha256
ceab0f159ae79118, retrieved 2026-09-23, 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).