STM32F303VBT6 Detailed explanation of pin function specifications and circuit principle instructions

STM32F303VBT6 Detailed explanation of pin function specifications and circuit principle instructions

The model "STM32F303VBT6" is part of the STM32 family, which is a series of microcontrollers developed by STMicroelectronics. The STM32F303VBT6 belongs to the STM32F3 series, which are designed with ARM Cortex-M4 cores and are often used in embedded applications that require real-time processing and low- Power consumption.

Packaging for STM32F303VBT6:

The STM32F303VBT6 is packaged in a LQFP-48 (Low-profile Quad Flat Package with 48 pins).

Pinout and Functions for STM32F303VBT6:

Pinout Description (48 pins):

Here’s a detailed breakdown of all the pins for the STM32F303VBT6 microcontroller in a 48-pin LQFP package:

Pin Number Pin Name Function Notes 1 VSS Ground Ground Pin 2 VDD Power Supply +3.3V power input 3 NC No connection Not connected to any function 4 PA0 GPIO / ADC General-purpose I/O or ADC input 5 PA1 GPIO / ADC General-purpose I/O or ADC input 6 PA2 GPIO / USART2_TX General-purpose I/O or USART2 Transmit 7 PA3 GPIO / USART2_RX General-purpose I/O or USART2 Receive 8 PA4 GPIO / SPI1_NSS General-purpose I/O or SPI1 Chip Select 9 PA5 GPIO / SPI1_SCK General-purpose I/O or SPI1 Clock 10 PA6 GPIO / SPI1_MISO General-purpose I/O or SPI1 Master In Slave Out 11 PA7 GPIO / SPI1_MOSI General-purpose I/O or SPI1 Master Out Slave In 12 PB0 GPIO / TIM3_CH3 General-purpose I/O or Timer 3 Channel 3 13 PB1 GPIO / TIM3_CH4 General-purpose I/O or Timer 3 Channel 4 14 PB2 GPIO / TIM3_CH1 General-purpose I/O or Timer 3 Channel 1 15 PB3 GPIO / TIM3_CH2 General-purpose I/O or Timer 3 Channel 2 16 PB4 GPIO / I2C1_SCL General-purpose I/O or I2C1 Clock 17 PB5 GPIO / I2C1_SDA General-purpose I/O or I2C1 Data 18 PB6 GPIO / SPI1_SCK General-purpose I/O or SPI1 Clock 19 PB7 GPIO / SPI1_MISO General-purpose I/O or SPI1 Master In Slave Out 20 PC0 GPIO / TIM3_ETR General-purpose I/O or Timer 3 External Trigger 21 PC1 GPIO / TIM8_CH1 General-purpose I/O or Timer 8 Channel 1 22 PC2 GPIO / TIM8_CH2 General-purpose I/O or Timer 8 Channel 2 23 PC3 GPIO / USART3_TX General-purpose I/O or USART3 Transmit 24 PC4 GPIO / USART3_RX General-purpose I/O or USART3 Receive 25 PC5 GPIO / SPI2_SCK General-purpose I/O or SPI2 Clock 26 PC6 GPIO / SPI2_MISO General-purpose I/O or SPI2 Master In Slave Out 27 PC7 GPIO / SPI2_MOSI General-purpose I/O or SPI2 Master Out Slave In 28 PD0 GPIO / TIM4_CH1 General-purpose I/O or Timer 4 Channel 1 29 PD1 GPIO / TIM4_CH2 General-purpose I/O or Timer 4 Channel 2 30 PD2 GPIO / TIM4_CH3 General-purpose I/O or Timer 4 Channel 3 31 PD3 GPIO / TIM4_CH4 General-purpose I/O or Timer 4 Channel 4 32 PD4 GPIO / TIM4_ETR General-purpose I/O or Timer 4 External Trigger 33 PD5 GPIO / I2C2_SCL General-purpose I/O or I2C2 Clock 34 PD6 GPIO / I2C2_SDA General-purpose I/O or I2C2 Data 35 PD7 GPIO / UART2_TX General-purpose I/O or UART2 Transmit 36 PD8 GPIO / UART2_RX General-purpose I/O or UART2 Receive 37 PD9 GPIO / UART2_RTS General-purpose I/O or UART2 Request to Send 38 PD10 GPIO / UART2_CTS General-purpose I/O or UART2 Clear to Send 39 VDD Power Supply +3.3V power input 40 VSS Ground Ground Pin 41 NC No connection Not connected to any function 42 NRST Reset Reset Pin 43 BOOT0 Boot Mode Selection Boot Mode Selection Pin 44 OSC_IN External Oscillator Input External oscillator input for the system clock 45 OSC_OUT External Oscillator Output External oscillator output for the system clock 46 USB_DM USB Data Minus USB Data - Pin 47 USB_DP USB Data Plus USB Data + Pin 48 VSS Ground Ground Pin

FAQs for STM32F303VBT6 Pin Functions:

Q: What is the function of pin PA0? A: Pin PA0 serves as a General Purpose Input/Output (GPIO) pin, and it can also function as an ADC input. Q: Can PA1 be used for communication? A: Yes, PA1 can be used as a GPIO pin or as an ADC input. It can also function in communication protocols like USART. Q: What is the role of pin PA2? A: Pin PA2 serves as a GPIO or can be used for USART2 Transmit (TX). Q: Is there a dedicated ground pin? A: Yes, pin VSS is the ground pin for STM32F303VBT6. Q: How does pin PA5 work? A: Pin PA5 serves as a GPIO or can function as the SPI1 Clock (SCK) pin. Q: How do pins PB0-PB7 relate to timers? A: Pins PB0-PB7 can be mapped to Timer 3 and Timer 8 channels, functioning as input capture, output compare, or PWM channels. Q: What can pin PA6 be used for? A: Pin PA6 can be used as a GPIO or as an SPI1 Master In Slave Out (MISO) pin. Q: Does the STM32F303VBT6 support USB? A: Yes, pins USBDM and USBDP support USB data communication for USB device functionality. Q: What is the function of the BOOT0 pin? A: Pin BOOT0 determines the boot mode of the microcontroller. If set high, the device will boot from Flash Memory ; if low, it will boot from System Memory.

Q: What is the purpose of the NRST pin?

A: The NRST pin is the reset pin. It resets the microcontroller when triggered.

Q: Can pin PA4 function as SPI?

A: Yes, PA4 can function as the SPI1 Chip Select (NSS) pin.

Q: Is there an external oscillator input?

A: Yes, pins OSCIN and OSCOUT are used for connecting an external crystal oscillator.

Q: How is the I2C protocol supported?

A: Pins PB4 and PB5 are used for I2C1 communication (SCL and SDA), and PD5/PD6 are used for I2C2.

Q: Can the STM32F303VBT6 be used for UART communication?

A: Yes, pins PA2/PA3, PB10/PB11, PD5/PD6, etc., support USART communication (TX, RX, RTS, CTS).

Q: How does the chip support SPI communication?

A: SPI communication can be used through pins such as PA5/PA6/PA7 for SPI1, PB3/PB4/PB5 for SPI2.

Q: What pin functions as the power supply?

A: Pin VDD is used for providing a 3.3V power supply to the device.

Q: Can the STM32F303VBT6 use timers for PWM generation?

A: Yes, multiple pins like PA6/PA7, PB0-PB3, PD0-PD3, etc., can function as PWM outputs controlled by timers.

Q: Does the chip support ADC inputs?

A: Yes, multiple GPIO pins such as PA0, PA1, PA2, etc., can function as analog inputs for the ADC.

Q: What is the role of pin VSS?

A: VSS is the ground pin, and it serves as the reference point for all signals.

Q: How is reset handled in STM32F303VBT6?

A: The NRST pin is used to trigger a system-wide reset when needed.

This overview covers the full pinout and functionality of the STM32F303VBT6 microcontroller. Should you need more specific details, feel free to ask!