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STM32F105RBT6
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
markdownSTM32F105RBT6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32F105RBT6 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 power supply 1.8 to 3.6 V for RTC, backup registers, and external 32 kHz oscillator. |
| 2 | PC13-TAMPER-RTC | bidirectional | General-purpose I/O pin, can be configured as TAMPER-RTC function (supplied through power switch). |
| 3 | PC14-OSC32_IN | input | 32.768 kHz oscillator input pin (supplied through power switch). |
| 4 | PC15-OSC32_OUT | output | 32.768 kHz oscillator output pin (supplied through power switch). |
| 5 | OSC_IN | input | Main oscillator input for 3-25 MHz crystal/ceramic resonator; PD0 after software remap. |
| 6 | OSC_OUT | output | Main oscillator output; PD1 after software remap. |
| 7 | NRST | input | Active low external reset pin with internal pull-up and filtering. |
| 8 | PC0 | bidirectional | General-purpose I/O pin; alternate function ADC12_IN10. |
| 9 | PC1 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN11, ETH_MII_MDC, ETH_RMII_MDC. |
| 10 | PC2 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN12, ETH_MII_TXD2. |
| 11 | PC3 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN13, ETH_MII_TX_CLK. |
| 12 | VSSA | power_in | Analog ground for ADC, DAC, temperature sensor, and PLL/RC oscillators. |
| 13 | VDDA | power_in | Analog power supply 2.4 to 3.6 V for ADC, DAC, and analog circuits (minimum 2.4 V when ADC used). |
| 14 | PA0-WKUP | bidirectional | General-purpose I/O with wakeup from Stop/Standby; alternate functions USART2_CTS, ADC12_IN0, TIM2_CH1_ETR, TIM5_CH1, Ethernet. |
| 15 | PA1 | bidirectional | General-purpose I/O pin; alternate functions USART2_RTS, ADC12_IN1, TIM5_CH2, TIM2_CH2, Ethernet. |
| 16 | PA2 | bidirectional | General-purpose I/O pin; alternate functions USART2_TX, TIM5_CH3, ADC12_IN2, TIM2_CH3, Ethernet. |
| 17 | PA3 | bidirectional | General-purpose I/O pin; alternate functions USART2_RX, TIM5_CH4, ADC12_IN3, TIM2_CH4, Ethernet. |
| 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 pin; default functions SPI1_NSS, DAC_OUT1, USART2_CK, ADC12_IN4; remap functions SPI3_NSS, I2S3_WS. |
| 21 | PA5 | bidirectional | General-purpose I/O pin; alternate functions SPI1_SCK, DAC_OUT2, ADC12_IN5. |
| 22 | PA6 | bidirectional | General-purpose I/O pin; alternate functions SPI1_MISO, ADC12_IN6, TIM3_CH1; remap function TIM1_BKIN. |
| 23 | PA7 | bidirectional | 5V-tolerant general-purpose I/O; default functions SPI1_MOSI, ADC12_IN7, TIM3_CH2, Ethernet; remap function TIM1_CH1N. |
| 24 | PC4 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN14, ETH_MII_RXD0, ETH_RMII_RXD0. |
| 25 | PC5 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN15, ETH_MII_RXD1, ETH_RMII_RXD1. |
| 26 | PB0 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN8, TIM3_CH3, Ethernet; remap function TIM1_CH2N. |
| 27 | PB1 | bidirectional | General-purpose I/O pin; alternate functions ADC12_IN9, TIM3_CH4, Ethernet; remap function TIM1_CH3N. |
| 28 | PB2 | bidirectional | 5V-tolerant general-purpose I/O; main function PB2/BOOT1 (boot pin). |
| 29 | PB10 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions I2C2_SCL, USART3_TX, Ethernet; remap function TIM2_CH3. |
| 30 | PB11 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions I2C2_SDA, USART3_RX, Ethernet TX_EN; remap function TIM2_CH4. |
| 31 | VSS_1 | power_in | Ground connection. |
| 32 | VDD_1 | power_in | Main power supply 2.0 to 3.6 V. |
| 33 | PB12 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN, CAN2_RX, Ethernet TXD0. |
| 34 | PB13 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, CAN2_TX, Ethernet TXD1. |
| 35 | PB14 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions SPI2_MISO, TIM1_CH2N, USART3_RTS. |
| 36 | PB15 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions SPI2_MOSI, I2S2_SD, TIM1_CH3N. |
| 37 | PC6 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions I2S2_MCK, TIM3_CH1. |
| 38 | PC7 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions I2S3_MCK, TIM3_CH2. |
| 39 | PC8 | bidirectional | 5V-tolerant general-purpose I/O; remap function TIM3_CH3. |
| 40 | PC9 | bidirectional | 5V-tolerant general-purpose I/O; remap function TIM3_CH4. |
| 41 | PA8 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions USART1_CK, OTG_FS_SOF, TIM1_CH1, MCO (main clock output). |
| 42 | PA9 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions USART1_TX, TIM1_CH2, OTG_FS_VBUS. |
| 43 | PA10 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions USART1_RX, TIM1_CH3, OTG_FS_ID. |
| 44 | PA11 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions USART1_CTS, CAN1_RX, TIM1_CH4, OTG_FS_DM. |
| 45 | PA12 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions USART1_RTS, OTG_FS_DP, CAN1_TX, TIM1_ETR. |
| 46 | PA13 | bidirectional | 5V-tolerant SWDIO debug port (JTMS); after remap: PA13 general-purpose I/O. |
| 47 | VSS_2 | power_in | Ground connection. |
| 48 | VDD_2 | power_in | Main power supply 2.0 to 3.6 V. |
| 49 | PA14 | bidirectional | 5V-tolerant SWCLK debug port (JTCK); after remap: PA14 general-purpose I/O. |
| 50 | PA15 | bidirectional | 5V-tolerant JTDI debug port; remap functions SPI3_NSS, I2S3_WS, TIM2_CH1_ETR, SPI1_NSS, PA15. |
| 51 | PC10 | bidirectional | 5V-tolerant general-purpose I/O; default function UART4_TX; remap functions USART3_TX, SPI3_SCK, I2S3_CK. |
| 52 | PC11 | bidirectional | 5V-tolerant general-purpose I/O; default function UART4_RX; remap functions USART3_RX, SPI3_MISO. |
| 53 | PC12 | bidirectional | 5V-tolerant general-purpose I/O; default function UART5_TX; remap functions USART3_CK, SPI3_MOSI, I2S3_SD. |
| 54 | PD2 | bidirectional | 5V-tolerant general-purpose I/O; alternate functions TIM3_ETR, UART5_RX. |
| 55 | PB3 | bidirectional | 5V-tolerant JTDO debug port; remap functions SPI3_SCK, I2S3_CK, TIM2_CH2, SPI1_SCK, TRACESWO. |
| 56 | PB4 | bidirectional | 5V-tolerant NJTRST debug port; remap functions SPI3_MISO, TIM3_CH1, SPI1_MISO. |
| 57 | PB5 | bidirectional | General-purpose I/O; alternate functions I2C1_SMBA, SPI3_MOSI, Ethernet PPS_OUT, I2S3_SD; remap functions TIM3_CH2, SPI1_MOSI, CAN2_RX. |
| 58 | PB6 | bidirectional | 5V-tolerant general-purpose I/O; default functions I2C1_SCL, TIM4_CH1; remap functions USART1_TX, CAN2_TX. |
| 59 | PB7 | bidirectional | 5V-tolerant general-purpose I/O; default functions I2C1_SDA, TIM4_CH2; remap function USART1_RX. |
| 60 | BOOT0 | input | Boot pin to select boot from flash (low) or system memory/SRAM (high) after reset. |
| 61 | PB8 | bidirectional | 5V-tolerant general-purpose I/O; default functions TIM4_CH3, Ethernet TXD3; remap functions I2C1_SCL, CAN1_RX. |
| 62 | PB9 | bidirectional | 5V-tolerant general-purpose I/O; default function TIM4_CH4; remap functions I2C1_SDA, CAN1_TX. |
| 63 | VSS_3 | power_in | Ground connection. |
| 64 | VDD_3 | power_in | Main power supply 2.0 to 3.6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32F105RBT6 - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32f105rbt6-etched.step/stm32f105rbt6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f105rbt6.step/stm32f105rbt6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (104 pp, sha256
04f979ad6ea16a85, retrieved 2026-09-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).