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STM32F103RDT6
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
markdownSTM32F103RDT6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32F103RDT6 from STMicroelectronics, in a LQFP-64(10x10). 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 battery supply for RTC, external clock 32 kHz oscillator and backup registers; 1.8 to 3.6 V. |
| 2 | PC13-TAMPER-RTC | bidirectional | General-purpose I/O or tamper/RTC alarm output; 3.3V I/O with limited current capability (3 mA max). |
| 3 | PC14-OSC32_IN | input | 32.768 kHz crystal oscillator input or general-purpose I/O. |
| 4 | PC15-OSC32_OUT | output | 32.768 kHz crystal oscillator output or general-purpose I/O. |
| 5 | PD0 | bidirectional | General-purpose I/O; 5V tolerant; default OSC_IN or remapped as FSMC_D2/CAN_RX. |
| 6 | PD1 | bidirectional | General-purpose I/O; 5V tolerant; default OSC_OUT or remapped as FSMC_D3/CAN_TX. |
| 7 | NRST | bidirectional | Active low external reset input with internal pull-up and filter; typical reset threshold 0.8V max. |
| 8 | PC0 | bidirectional | General-purpose I/O or ADC123_IN10 analog input channel. |
| 9 | PC1 | bidirectional | General-purpose I/O or ADC123_IN11 analog input channel. |
| 10 | PC2 | bidirectional | General-purpose I/O or ADC123_IN12 analog input channel. |
| 11 | PC3 | bidirectional | General-purpose I/O or ADC123_IN13 analog input channel. |
| 12 | VSSA | power_in | Analog ground for ADC, DAC, reset blocks and internal oscillators; must be connected to VSS. |
| 13 | VDDA | power_in | Analog power supply for ADC, DAC and internal oscillators; 2.4 to 3.6 V when ADC/DAC used. |
| 14 | PA0-WKUP | bidirectional | General-purpose I/O or wakeup signal with pull-down; ADC123_IN0; TIM2_CH1_ETR/TIM5_CH1. |
| 15 | PA1 | bidirectional | General-purpose I/O; ADC123_IN1; USART2_RTS or TIM5_CH2/TIM2_CH2. |
| 16 | PA2 | bidirectional | General-purpose I/O; ADC123_IN2; USART2_TX or TIM5_CH3/TIM2_CH3. |
| 17 | PA3 | bidirectional | General-purpose I/O; ADC123_IN3; USART2_RX or TIM5_CH4/TIM2_CH4. |
| 18 | VSS_4 | power_in | Ground connection. |
| 19 | VDD_4 | power_in | Main power supply; 2.0 to 3.6 V. |
| 20 | PA4 | bidirectional | General-purpose I/O; DAC_OUT1; ADC12_IN4; SPI1_NSS or USART2_CK. |
| 21 | PA5 | bidirectional | General-purpose I/O; DAC_OUT2; ADC12_IN5; SPI1_SCK. |
| 22 | PA6 | bidirectional | General-purpose I/O; ADC12_IN6; SPI1_MISO or TIM3_CH1/TIM8_BKIN/TIM1_BKIN. |
| 23 | PA7 | bidirectional | General-purpose I/O; ADC12_IN7; SPI1_MOSI or TIM3_CH2/TIM8_CH1N/TIM1_CH1N. |
| 24 | PC4 | bidirectional | General-purpose I/O; ADC12_IN14. |
| 25 | PC5 | bidirectional | General-purpose I/O; ADC12_IN15. |
| 26 | PB0 | bidirectional | General-purpose I/O; ADC12_IN8; TIM3_CH3 or TIM8_CH2N/TIM1_CH2N. |
| 27 | PB1 | bidirectional | General-purpose I/O; ADC12_IN9; TIM3_CH4 or TIM8_CH3N/TIM1_CH3N. |
| 28 | PB2 | bidirectional | General-purpose I/O or BOOT1 mode selection; 5V tolerant. |
| 29 | VSS_1 | power_in | Ground connection. |
| 30 | VDD_1 | power_in | Main power supply; 2.0 to 3.6 V. |
| 31 | PB10 | bidirectional | General-purpose I/O; 5V tolerant; I2C2_SCL or USART3_TX/TIM2_CH3; UART4_TX or SDIO_D2. |
| 32 | PB11 | bidirectional | General-purpose I/O; 5V tolerant; I2C2_SDA or USART3_RX/TIM2_CH4; UART4_RX or SDIO_D3. |
| 33 | VSS_2 | power_in | Ground connection. |
| 34 | VDD_2 | power_in | Main power supply; 2.0 to 3.6 V. |
| 35 | PA13 | bidirectional | JTAG/SWDIO debug interface pin; 5V tolerant; general-purpose I/O after reconfiguration. |
| 36 | PA12 | bidirectional | General-purpose I/O; 5V tolerant; USART1_RTS/USBDP/CAN_TX/TIM1_ETR. |
| 37 | PA11 | bidirectional | General-purpose I/O; 5V tolerant; USART1_CTS/USBDM/CAN_RX/TIM1_CH4. |
| 38 | PA10 | bidirectional | General-purpose I/O; 5V tolerant; USART1_RX or TIM1_CH3. |
| 39 | PA9 | bidirectional | General-purpose I/O; 5V tolerant; USART1_TX or TIM1_CH2. |
| 40 | PA8 | bidirectional | General-purpose I/O; 5V tolerant; USART1_CK/TIM1_CH1/MCO. |
| 41 | PC9 | bidirectional | General-purpose I/O; 5V tolerant; TIM8_CH4/SDIO_D1 or TIM3_CH4. |
| 42 | PC8 | bidirectional | General-purpose I/O; 5V tolerant; TIM8_CH3/SDIO_D0 or TIM3_CH3. |
| 43 | PC7 | bidirectional | General-purpose I/O; 5V tolerant; I2S3_MCK/TIM8_CH2/SDIO_D7 or TIM3_CH2. |
| 44 | PC6 | bidirectional | General-purpose I/O; 5V tolerant; I2S2_MCK/TIM8_CH1/SDIO_D6 or TIM3_CH1. |
| 45 | PB15 | bidirectional | General-purpose I/O; 5V tolerant; SPI2_MOSI/I2S2_SD or TIM1_CH3N. |
| 46 | PB14 | bidirectional | General-purpose I/O; 5V tolerant; SPI2_MISO or TIM1_CH2N/USART3_RTS. |
| 47 | PB13 | bidirectional | General-purpose I/O; 5V tolerant; SPI2_SCK/I2S2_CK or USART3_CTS/TIM1_CH1N. |
| 48 | PB12 | bidirectional | General-purpose I/O; 5V tolerant; SPI2_NSS/I2S2_WS/I2C2_SMBA/USART3_CK or TIM1_BKIN. |
| 49 | PD2 | bidirectional | General-purpose I/O; 5V tolerant; TIM3_ETR/UART5_RX/SDIO_CMD. |
| 50 | PC12 | bidirectional | General-purpose I/O; 5V tolerant; UART5_TX/SDIO_CK or USART3_CK. |
| 51 | PC11 | bidirectional | General-purpose I/O; 5V tolerant; UART4_RX/SDIO_D3 or USART3_RX. |
| 52 | PC10 | bidirectional | General-purpose I/O; 5V tolerant; UART4_TX/SDIO_D2 or USART3_TX. |
| 53 | PA15 | bidirectional | JTAG/SPI NSS debug interface pin; 5V tolerant; SPI3_NSS/I2S3_WS or TIM2_CH1_ETR/SPI1_NSS. |
| 54 | PA14 | bidirectional | JTAG/SWCLK debug interface pin; 5V tolerant; general-purpose I/O after reconfiguration. |
| 55 | VSS_3 | power_in | Ground connection. |
| 56 | VDD_3 | power_in | Main power supply; 2.0 to 3.6 V. |
| 57 | PB9 | bidirectional | General-purpose I/O; 5V tolerant; TIM4_CH4/SDIO_D5 or I2C1_SDA/CAN_TX. |
| 58 | PB8 | bidirectional | General-purpose I/O; 5V tolerant; TIM4_CH3/SDIO_D4 or I2C1_SCL/CAN_RX. |
| 59 | BOOT0 | input | Boot mode selection pin for application boot from Flash (low) or system memory (high); sampled at reset. |
| 60 | PB7 | bidirectional | General-purpose I/O; 5V tolerant; I2C1_SDA/FSMC_NADV/TIM4_CH2 or USART1_RX. |
| 61 | PB6 | bidirectional | General-purpose I/O; 5V tolerant; I2C1_SCL or TIM4_CH1/USART1_TX. |
| 62 | PB5 | bidirectional | General-purpose I/O; I2C1_SMBA/SPI3_MOSI/I2S3_SD or TIM3_CH2/SPI1_MOSI. |
| 63 | PB4 | bidirectional | General-purpose I/O; 5V tolerant; NJTRST debug pin or SPI3_MISO/PB4/TIM3_CH1/SPI1_MISO. |
| 64 | PB3 | bidirectional | General-purpose I/O; 5V tolerant; JTAG/TRACESWO debug pin or SPI3_SCK/I2S3_CK/TIM2_CH2/SPI1_SCK. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32F103RDT6 - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32f103rdt6-etched.step/stm32f103rdt6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f103rdt6.step/stm32f103rdt6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (130 pp, sha256
6cc345d224870bff, retrieved 2026-09-24, tier: lcsc) - 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).