STM32F105RCT6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32F105RCT6 is part of the STM32 family of microcontrollers developed by STMicroelectronics. Specifically, the STM32F105RCT6 is a microcontroller based on the ARM Cortex-M3 processor core, and it is used for embedded applications that require high-performance and efficient processing.

1. Package and Pinout Description

Package Type: LQFP (Low Profile Quad Flat Package) Pin Count: 100 pins Package Size: 14x14mm Pin Function Specification: The STM32F105RCT6 comes in a 100-pin LQFP package. All 100 pins have specific functions, which can be used for digital I/O, power supply, analog interface s, communication (UART, SPI, I2C), and other features.

2. Pinout and Functions Table

Below is a detailed list of the pin functions for the STM32F105RCT6. Please note that each pin has specific uses that may differ depending on the mode (input, output, analog, etc.) and the configuration of the microcontroller.

Pin Number Pin Name Function 1 PA0 GPIO, Analog input, External Interrupt (EXTI0), TIM2 CH1 input 2 PA1 GPIO, Analog input, External Interrupt (EXTI1), TIM2 CH2 input 3 PA2 GPIO, Analog input, External Interrupt (EXTI2), TIM2 CH3 input 4 PA3 GPIO, Analog input, External Interrupt (EXTI3), TIM2 CH4 input 5 PA4 GPIO, Analog input, External Interrupt (EXTI4), I2C1_SDA 6 PA5 GPIO, Analog input, External Interrupt (EXTI5), TIM2 CH1 7 PA6 GPIO, Analog input, External Interrupt (EXTI6), TIM3 CH1 8 PA7 GPIO, Analog input, External Interrupt (EXTI7), TIM3 CH2 9 PA8 GPIO, Analog input, External Interrupt (EXTI8), Clock output 10 PA9 GPIO, Analog input, External Interrupt (EXTI9), USART1_TX 11 PA10 GPIO, Analog input, External Interrupt (EXTI10), USART1_RX 12 PA11 GPIO, Analog input, External Interrupt (EXTI11), USB_DM 13 PA12 GPIO, Analog input, External Interrupt (EXTI12), USB_DP 14 PA13 GPIO, Analog input, External Interrupt (EXTI13), SWDIO 15 PA14 GPIO, Analog input, External Interrupt (EXTI14), SWCLK 16 PA15 GPIO, Analog input, External Interrupt (EXTI15), JTDI 17 PB0 GPIO, Analog input, External Interrupt (EXTI0), SPI1_NSS 18 PB1 GPIO, Analog input, External Interrupt (EXTI1), SPI1_SCK 19 PB2 GPIO, Analog input, External Interrupt (EXTI2), SPI1_MISO 20 PB3 GPIO, Analog input, External Interrupt (EXTI3), SPI1_MOSI 21 PB4 GPIO, Analog input, External Interrupt (EXTI4), I2C1_SCL 22 PB5 GPIO, Analog input, External Interrupt (EXTI5), SPI1_SCK 23 PB6 GPIO, Analog input, External Interrupt (EXTI6), TIM4 CH1 24 PB7 GPIO, Analog input, External Interrupt (EXTI7), TIM4 CH2 25 PB8 GPIO, Analog input, External Interrupt (EXTI8), TIM4 CH3 26 PB9 GPIO, Analog input, External Interrupt (EXTI9), TIM4 CH4 27 PB10 GPIO, Analog input, External Interrupt (EXTI10), USART3_TX 28 PB11 GPIO, Analog input, External Interrupt (EXTI11), USART3_RX 29 PB12 GPIO, Analog input, External Interrupt (EXTI12), SPI2_NSS 30 PB13 GPIO, Analog input, External Interrupt (EXTI13), SPI2_SCK 31 PB14 GPIO, Analog input, External Interrupt (EXTI14), SPI2_MISO 32 PB15 GPIO, Analog input, External Interrupt (EXTI15), SPI2_MOSI 33 PC0 GPIO, Analog input, External Interrupt (EXTI0), TIM8 CH1 input 34 PC1 GPIO, Analog input, External Interrupt (EXTI1), TIM8 CH2 input 35 PC2 GPIO, Analog input, External Interrupt (EXTI2), TIM8 CH3 input 36 PC3 GPIO, Analog input, External Interrupt (EXTI3), TIM8 CH4 input 37 PC4 GPIO, Analog input, External Interrupt (EXTI4), I2C1_SCL 38 PC5 GPIO, Analog input, External Interrupt (EXTI5), I2C1_SDA 39 PC6 GPIO, Analog input, External Interrupt (EXTI6), TIM3 CH1 40 PC7 GPIO, Analog input, External Interrupt (EXTI7), TIM3 CH2 41 PC8 GPIO, Analog input, External Interrupt (EXTI8), TIM3 CH3 42 PC9 GPIO, Analog input, External Interrupt (EXTI9), TIM3 CH4 43 PC10 GPIO, Analog input, External Interrupt (EXTI10), USART2_TX 44 PC11 GPIO, Analog input, External Interrupt (EXTI11), USART2_RX 45 PC12 GPIO, Analog input, External Interrupt (EXTI12), USART3_TX 46 PC13 GPIO, Analog input, External Interrupt (EXTI13), USART3_RX 47 PD0 GPIO, Analog input, External Interrupt (EXTI0), TIM4 CH1 48 PD1 GPIO, Analog input, External Interrupt (EXTI1), TIM4 CH2 49 PD2 GPIO, Analog input, External Interrupt (EXTI2), TIM4 CH3 50 PD3 GPIO, Analog input, External Interrupt (EXTI3), TIM4 CH4 51 PD4 GPIO, Analog input, External Interrupt (EXTI4), CAN1_RX 52 PD5 GPIO, Analog input, External Interrupt (EXTI5), CAN1_TX 53 PD6 GPIO