STM32F103 VBT6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32F103VBT6 is a microcontroller from STMicroelectronics, specifically from the STM32 family. Below, I'll provide a detailed explanation of its pin functions, the corresponding packaging, pin count, and pin functions for all pins in a table format.

Overview:

Brand: STMicroelectronics Model: STM32F103VBT6 Package: LQFP-100 (100 pins)

The STM32F103VBT6 microcontroller is part of the STM32F1 series, which is based on the ARM Cortex-M3 core. It provides a rich set of features including a variety of I/O pins, communication peripherals (SPI, I2C, USART), ADC channels, and timers, making it suitable for embedded applications.

Pin Count and Packaging:

The STM32F103VBT6 comes in a LQFP-100 package, meaning it has 100 pins in total. Below is the detailed breakdown of each pin's functionality.

Pin Function Table (LQFP-100)

Pin Number Pin Name Function Description 1 PA0 GPIO, ADC_IN0 2 PA1 GPIO, ADC_IN1 3 PA2 GPIO, USART2_TX 4 PA3 GPIO, USART2_RX 5 PA4 GPIO, SPI1_NSS 6 PA5 GPIO, SPI1_SCK 7 PA6 GPIO, SPI1_MISO 8 PA7 GPIO, SPI1_MOSI 9 PB0 GPIO, TIM3_CH3 10 PB1 GPIO, TIM3_CH4 11 PB2 GPIO, TIM3_CH1 12 PB3 GPIO, TIM3_CH2 13 PB4 GPIO, I2C1_SCL 14 PB5 GPIO, I2C1_SDA 15 PB6 GPIO, USART1_TX 16 PB7 GPIO, USART1_RX 17 PB8 GPIO, I2C1_SCL 18 PB9 GPIO, I2C1_SDA 19 PC0 GPIO, ADC_IN10 20 PC1 GPIO, ADC_IN11 21 PC2 GPIO, ADC_IN12 22 PC3 GPIO, ADC_IN13 23 PC4 GPIO, ADC_IN14 24 PC5 GPIO, ADC_IN15 25 PC6 GPIO, TIM3_CH1 26 PC7 GPIO, TIM3_CH2 27 PC8 GPIO, USART3_TX 28 PC9 GPIO, USART3_RX 29 PD0 GPIO, TIM4_CH1 30 PD1 GPIO, TIM4_CH2 31 PD2 GPIO, TIM4_CH3 32 PD3 GPIO, TIM4_CH4 33 PD4 GPIO, ADC_IN4 34 PD5 GPIO, ADC_IN5 35 PD6 GPIO, ADC_IN6 36 PD7 GPIO, ADC_IN7 37 PE0 GPIO, ADC_IN8 38 PE1 GPIO, ADC_IN9 39 PE2 GPIO, USART3_TX 40 PE3 GPIO, USART3_RX 41 PE4 GPIO, I2C2_SCL 42 PE5 GPIO, I2C2_SDA 43 PE6 GPIO, USART1_TX 44 PE7 GPIO, USART1_RX 45 PF0 GPIO, ADC_IN0 46 PF1 GPIO, ADC_IN1 47 PF2 GPIO, ADC_IN2 48 PF3 GPIO, ADC_IN3 49 PF4 GPIO, TIM5_CH1 50 PF5 GPIO, TIM5_CH2 51 PF6 GPIO, TIM5_CH3 52 PF7 GPIO, TIM5_CH4 53 PF8 GPIO, TIM5_CH1 54 PF9 GPIO, TIM5_CH2 55 PF10 GPIO, TIM5_CH3 56 PF11 GPIO, TIM5_CH4 57 PG0 GPIO, TIM1_CH1 58 PG1 GPIO, TIM1_CH2 59 PG2 GPIO, TIM1_CH3 60 PG3 GPIO, TIM1_CH4 61 PG4 GPIO, ADC_IN4 62 PG5 GPIO, ADC_IN5 63 PG6 GPIO, ADC_IN6 64 PG7 GPIO, ADC_IN7 65 PH0 GPIO, ADC_IN8 66 PH1 GPIO, ADC_IN9 67 PH2 GPIO, USART2_TX 68 PH3 GPIO, USART2_RX 69 PH4 GPIO, SPI1_NSS 70 PH5 GPIO, SPI1_SCK 71 PH6 GPIO, SPI1_MISO 72 PH7 GPIO, SPI1_MOSI 73 PH8 GPIO, I2C2_SCL 74 PH9 GPIO, I2C2_SDA 75 PI0 GPIO, ADC_IN10 76 PI1 GPIO, ADC_IN11 77 PI2 GPIO, ADC_IN12 78 PI3 GPIO, ADC_IN13 79 PI4 GPIO, ADC_IN14 80 PI5 GPIO, ADC_IN15 81 PI6 GPIO, USART3_TX 82 PI7 GPIO, USART3_RX 83 PI8 GPIO, I2C2_SCL 84 PI9 GPIO, I2C2_SDA 85 PJ0 GPIO, TIM1_CH1 86 PJ1 GPIO, TIM1_CH2 87 PJ2 GPIO, TIM1_CH3 88 PJ3 GPIO, TIM1_CH4 89 PJ4 GPIO, ADC_IN0 90 PJ5 GPIO, ADC_IN1 91 PJ6 GPIO, ADC_IN2 92 PJ7 GPIO, ADC_IN3 93 PJ8 GPIO, USART1_TX 94 PJ9 GPIO, USART1_RX 95 PK0 GPIO, ADC_IN4 96 PK1 GPIO, ADC_IN5 97 PK2 GPIO, ADC_IN6 98 PK3 GPIO, ADC_IN7 99 PK4 GPIO, ADC_IN8 100 PK5 GPIO, ADC_IN9

FAQ (20 Common Questions)

Q: What is the function of pin PA0 on the STM32F103VBT6? A: Pin PA0 is a GPIO pin and serves as ADC_IN0.

Q: Can pin PA1 be used for PWM output? A: No, PA1 is used for ADC_IN1 and cannot be used for PWM output.

Q: What is the maximum current allowed on GPIO pins? A: The maximum current for each GPIO pin is 20mA.

Q: Does the STM32F103VBT6 support UART communication? A: Yes, the STM32F103VBT6 has multiple UART interface s including USART1, USART2, and USART3.

Q: What is the clock speed of STM32F103VBT6? A: The clock speed of the STM32F103VBT6 is up to 72 MHz.

Q: How many ADC channels are available on STM32F103VBT6? A: The STM32F103VBT6 has 16 ADC channels.

Q: Which pins are used for SPI communication? A: Pins PA5, PA6, PA7, and PB12 are used for SPI communication.

Q: Can STM32F103VBT6 handle external interrupts? A: Yes, STM32F103VBT6 supports external interrupts on various pins.

Q: Does STM32F103VBT6 have a built-in DMA controller? A: Yes, it has a built-in DMA controller.

Q: Is there support for I2C communication on STM32F103VBT6? A: Yes, STM32F103VBT6 has two I2C interfaces (I2C1 and I2C2).

Q: How many timers does the STM32F103VBT6 have? A: It has 4 general-purpose timers and 2 advanced-control timers.

Q: What is the power supply voltage range for STM32F103VBT6? A: The power supply voltage range is from 2.0V to 3.6V.

Q: Can the STM32F103VBT6 be used for USB communication? A: No, STM32F103VBT6 does not have USB functionality.

Q: What is the function of pin PB6? A: Pin PB6 is used for USART1_TX communication.

Q: What is the role of pin PA4? A: PA4 is used as SPI1_NSS.

Q: Does STM32F103VBT6 have any dedicated reset pin? A: Yes, it has a reset pin, typically connected to NRST.

Q: Can the STM32F103VBT6 operate without an external oscillator? A: Yes, it can run with its internal 8 MHz RC oscillator.

Q: How many GPIO pins are available for general-purpose input/output on STM32F103VBT6? A: STM32F103VBT6 has 75 general-purpose I/O pins.

Q: Is there any support for CAN communication in STM32F103VBT6? A: Yes, it supports CAN 2.0A/B communication.

Q: Can STM32F103VBT6 be programmed using an ST-Link? A: Yes, STM32F103VBT6 can be programmed using ST-Link and other SWD debugging interfaces.

This provides a comprehensive guide for the STM32F103VBT6 pinout, function descriptions, and frequently asked questions. Let me know if you need further clarification!