STM32F103VDT6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32F103 VDT6 is part of the STM32 family, which is produced by STMicroelectronics. It is a 32-bit ARM Cortex-M3 microcontroller, widely used in embedded systems and electronics.

Package and Pin Count

The STM32F103VDT6 microcontroller comes in a LQFP (Low-profile Quad Flat Package) with 100 pins. This package type is commonly used in various embedded systems, offering a good balance between size and the number of I/O pins.

Pin Function and Specification Details

Below is the detailed explanation of the pin functions for each pin on the STM32F103VDT6 in a 100-pin LQFP package.

Pin Number Pin Name Pin Type Function Description 1 VSS Power Ground pin for the device 2 VDD Power Power supply pin (3.3V) 3 VDDA Power Analog power supply pin (3.3V) 4 VSSA Power Analog ground pin 5 PA13 GPIO General-purpose I/O, used as SWDIO (Serial Wire Debug Data Input/Output) or GPIO 6 PA14 GPIO General-purpose I/O, used as SWCLK (Serial Wire Debug Clock ) or GPIO 7 PA15 GPIO General-purpose I/O, used as alternate function (USART1 TX) or GPIO 8 PB0 GPIO General-purpose I/O, used as alternate function (TIM3 CH3) or GPIO 9 PB1 GPIO General-purpose I/O, used as alternate function (TIM3 CH4) or GPIO 10 PB2 GPIO General-purpose I/O, used as alternate function (TIM3 CH1) or GPIO 11 PB3 GPIO General-purpose I/O, used as alternate function (TIM3 CH2) or GPIO 12 PB4 GPIO General-purpose I/O, used as alternate function (SPI1 MISO) or GPIO 13 PB5 GPIO General-purpose I/O, used as alternate function (SPI1 MOSI) or GPIO 14 PB6 GPIO General-purpose I/O, used as alternate function (SPI1 SCK) or GPIO 15 PB7 GPIO General-purpose I/O, used as alternate function (SPI1 NSS) or GPIO 16 PC13 GPIO General-purpose I/O, used for the external interrupt or wake-up pin (if configured) 17 PC14 GPIO General-purpose I/O, used for the external interrupt or wake-up pin (if configured) 18 PC15 GPIO General-purpose I/O, used for the external interrupt or wake-up pin (if configured) 19 PD0 GPIO General-purpose I/O, used as an external interrupt or USART1 RX 20 PD1 GPIO General-purpose I/O, used as an external interrupt or USART1 TX 21 PD2 GPIO General-purpose I/O, used as an external interrupt or I2C1 SDA 22 PD3 GPIO General-purpose I/O, used as an external interrupt or I2C1 SCL 23 PD4 GPIO General-purpose I/O, used as an external interrupt or SPI1 MISO 24 PD5 GPIO General-purpose I/O, used as an external interrupt or SPI1 MOSI 25 PD6 GPIO General-purpose I/O, used as an external interrupt or SPI1 SCK 26 PD7 GPIO General-purpose I/O, used as an external interrupt or SPI1 NSS 27 PE0 GPIO General-purpose I/O, used as an external interrupt or I2C1 SDA 28 PE1 GPIO General-purpose I/O, used as an external interrupt or I2C1 SCL 29 PE2 GPIO General-purpose I/O, used as an external interrupt or UART1 TX 30 PE3 GPIO General-purpose I/O, used as an external interrupt or UART1 RX 31 PE4 GPIO General-purpose I/O, used as an external interrupt or TIM9 CH1 32 PE5 GPIO General-purpose I/O, used as an external interrupt or TIM9 CH2 33 PE6 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH1 34 PE7 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH2 35 PE8 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH3 36 PE9 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH4 37 PE10 GPIO General-purpose I/O, used as an external interrupt or USART2 TX 38 PE11 GPIO General-purpose I/O, used as an external interrupt or USART2 RX 39 PE12 GPIO General-purpose I/O, used as an external interrupt or SPI2 MISO 40 PE13 GPIO General-purpose I/O, used as an external interrupt or SPI2 MOSI 41 PE14 GPIO General-purpose I/O, used as an external interrupt or SPI2 SCK 42 PE15 GPIO General-purpose I/O, used as an external interrupt or SPI2 NSS 43 PF0 GPIO General-purpose I/O, used as an external interrupt or TIM3 CH1 44 PF1 GPIO General-purpose I/O, used as an external interrupt or TIM3 CH2 45 PF2 GPIO General-purpose I/O, used as an external interrupt or TIM3 CH3 46 PF3 GPIO General-purpose I/O, used as an external interrupt or TIM3 CH4 47 PF4 GPIO General-purpose I/O, used as an external interrupt or UART4 TX 48 PF5 GPIO General-purpose I/O, used as an external interrupt or UART4 RX 49 PF6 GPIO General-purpose I/O, used as an external interrupt or UART5 TX 50 PF7 GPIO General-purpose I/O, used as an external interrupt or UART5 RX 51 PF8 GPIO General-purpose I/O, used as an external interrupt or SPI3 MISO 52 PF9 GPIO General-purpose I/O, used as an external interrupt or SPI3 MOSI 53 PF10 GPIO General-purpose I/O, used as an external interrupt or SPI3 SCK 54 PF11 GPIO General-purpose I/O, used as an external interrupt or SPI3 NSS 55 PG0 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH1 56 PG1 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH2 57 PG2 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH3 58 PG3 GPIO General-purpose I/O, used as an external interrupt or TIM1 CH4 59 PG4 GPIO General-purpose I/O, used as an external interrupt or I2C2 SDA 60 PG5 GPIO General-purpose I/O, used as an external interrupt or I2C2 SCL 61 PG6 GPIO General-purpose I/O, used as an external interrupt or USART3 TX 62 PG7 GPIO General-purpose I/O, used as an external interrupt or USART3 RX 63 PG8 GPIO General-purpose I/O, used as an external interrupt or SPI1 MISO 64 PG9 GPIO General-purpose I/O, used as an external interrupt or SPI1 MOSI 65 PG10 GPIO General-purpose I/O, used as an external interrupt or SPI1 SCK 66 PG11 GPIO General-purpose I/O, used as an external interrupt or SPI1 NSS 67 PG12 GPIO General-purpose I/O, used as an external interrupt or UART1 TX 68 PG13 GPIO General-purpose I/O, used as an external interrupt or UART1 RX 69 PG14 GPIO General-purpose I/O, used as an external interrupt or UART2 TX 70 PG15 GPIO General-purpose I/O, used as an external interrupt or UART2 RX 71 PH0 GPIO General-purpose I/O, used as an external interrupt or SPI2 MISO 72 PH1 GPIO General-purpose I/O, used as an external interrupt or SPI2 MOSI 73 PH2 GPIO General-purpose I/O, used as an external interrupt or SPI2 SCK 74 PH3 GPIO General-purpose I/O, used as an external interrupt or SPI2 NSS 75 PH4 GPIO General-purpose I/O, used as an external interrupt or TIM2 CH1 76 PH5 GPIO General-purpose I/O, used as an external interrupt or TIM2 CH2 77 PH6 GPIO General-purpose I/O, used as an external interrupt or TIM2 CH3 78 PH7 GPIO General-purpose I/O, used as an external interrupt or TIM2 CH4 79 PH8 GPIO General-purpose I/O, used as an external interrupt or SPI1 MISO 80 PH9 GPIO General-purpose I/O, used as an external interrupt or SPI1 MOSI 81 PH10 GPIO General-purpose I/O, used as an external interrupt or SPI1 SCK 82 PH11 GPIO General-purpose I/O, used as an external interrupt or SPI1 NSS 83 PH12 GPIO General-purpose I/O, used as an external interrupt or UART3 TX 84 PH13 GPIO General-purpose I/O, used as an external interrupt or UART3 RX 85 PH14 GPIO General-purpose I/O, used as an external interrupt or UART4 TX 86 PH15 GPIO General-purpose I/O, used as an external interrupt or UART4 RX 87 PI0 GPIO General-purpose I/O, used as an external interrupt or USART5 TX 88 PI1 GPIO General-purpose I/O, used as an external interrupt or USART5 RX 89 PI2 GPIO General-purpose I/O, used as an external interrupt or I2C2 SDA 90 PI3 GPIO General-purpose I/O, used as an external interrupt or I2C2 SCL 91 PI4 GPIO General-purpose I/O, used as an external interrupt or SPI2 MISO 92 PI5 GPIO General-purpose I/O, used as an external interrupt or SPI2 MOSI 93 PI6 GPIO General-purpose I/O, used as an external interrupt or SPI2 SCK 94 PI7 GPIO General-purpose I/O, used as an external interrupt or SPI2 NSS 95 PI8 GPIO General-purpose I/O, used as an external interrupt or USART6 TX 96 PI9 GPIO General-purpose I/O, used as an external interrupt or USART6 RX 97 PI10 GPIO General-purpose I/O, used as an external interrupt or SPI3 MISO 98 PI11 GPIO General-purpose I/O, used as an external interrupt or SPI3 MOSI 99 PI12 GPIO General-purpose I/O, used as an external interrupt or SPI3 SCK 100 PI13 GPIO General-purpose I/O, used as an external interrupt or SPI3 NSS

20 FAQ on STM32F103VDT6 Pin Functions

What is the pin count of STM32F103VDT6? The STM32F103VDT6 has 100 pins. What is the maximum operating voltage for STM32F103VDT6? The maximum operating voltage is 3.6V. Can the STM32F103VDT6 handle analog inputs? Yes, it has analog pins that can be used for ADCs (Analog-to-Digital Converters ). Is the STM32F103VDT6 compatible with 5V logic? No, STM32F103VDT6 operates at 3.3V logic levels. What type of package does STM32F103VDT6 use? STM32F103VDT6 uses an LQFP (Low-profile Quad Flat Package). Can I use the STM32F103VDT6 for serial communication? Yes, it supports USART and UART for serial communication. Does STM32F103VDT6 support I2C communication? Yes, it has I2C functionality on multiple pins. What type of debugging interface does STM32F103VDT6 have? It uses the Serial Wire Debug (SWD) interface for debugging. How many timers does STM32F103VDT6 have? STM32F103VDT6 has 4 general-purpose timers and 2 advanced-control timers. Does STM32F103VDT6 have an integrated DAC? No, STM32F103VDT6 does not have a DAC (Digital-to-Analog Converter). How many I/O pins does the STM32F103VDT6 have? It has 80 general-purpose I/O pins. What kind of power supply does STM32F103VDT6 require? It requires a 3.3V power supply. Can STM32F103VDT6 communicate with SPI devices? Yes, it has SPI interfaces for communication with peripherals. What is the operating temperature range for STM32F103VDT6? The operating temperature range is from -40°C to +85°C. Does STM32F103VDT6 support USB communication? No, STM32F103VDT6 does not have native USB support. Can STM32F103VDT6 work with external interrupts? Yes, it supports external interrupts on various pins. How many ADC channels are available in STM32F103VDT6? It has 16 ADC channels for analog input. Can I use STM32F103VDT6 for PWM? Yes, it supports PWM (Pulse Width Modulation) on certain pins. What is the maximum clock speed of STM32F103VDT6? The maximum clock speed is 72 MHz. Does STM32F103VDT6 have integrated EEPROM? No, STM32F103VDT6 does not have integrated EEPROM.