STM32F722RET6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32F722RET6 is part of the STM32 family, which is a series of 32-bit microcontrollers developed by STMicroelectronics. Specifically, the STM32F722RET6 is based on the STM32F7 series of microcontrollers, which are known for their high performance and extensive peripheral options.

Package Type of STM32F722RET6:

Package: LQFP (Low-profile Quad Flat Package) Pin Count: 100 pins

Detailed Pin Function Specifications:

Below is the detailed function list of all 100 pins for the STM32F722RET6 microcontroller. The pins are categorized into various sections for easier understanding, such as power, Clock , GPIO, communication, and others.

Pin Number Pin Name Function Description 1 VSS Ground Pin 2 VDD Supply Pin (3.3V) 3 NRST Reset Pin 4 PA0 GPIO, External Interrupt, ADC Input 5 PA1 GPIO, External Interrupt, ADC Input 6 PA2 GPIO, External Interrupt, USART2_TX 7 PA3 GPIO, External Interrupt, USART2_RX 8 PA4 GPIO, SPI1_NSS 9 PA5 GPIO, SPI1_SCK 10 PA6 GPIO, SPI1_MISO 11 PA7 GPIO, SPI1_MOSI 12 PA8 GPIO, External Interrupt, CLKOUT 13 PA9 GPIO, USART1_TX 14 PA10 GPIO, USART1_RX 15 PA11 GPIO, CAN1_RX 16 PA12 GPIO, CAN1_TX 17 PA13 GPIO, SWDIO (Serial Wire Debug Data) 18 PA14 GPIO, SWCLK (Serial Wire Clock) 19 PA15 GPIO, External Interrupt, JTAG_TDI 20 PB0 GPIO, External Interrupt, TIM3_CH3 21 PB1 GPIO, External Interrupt, TIM3_CH4 22 PB2 GPIO, External Interrupt, SPI1_SCK 23 PB3 GPIO, External Interrupt, SPI1_MISO 24 PB4 GPIO, External Interrupt, I2C1_SCL 25 PB5 GPIO, External Interrupt, I2C1_SDA 26 PB6 GPIO, External Interrupt, UART4_TX 27 PB7 GPIO, External Interrupt, UART4_RX 28 PB8 GPIO, External Interrupt, USART3_TX 29 PB9 GPIO, External Interrupt, USART3_RX 30 PC0 GPIO, External Interrupt, ADC Input 31 PC1 GPIO, External Interrupt, ADC Input 32 PC2 GPIO, External Interrupt, ADC Input 33 PC3 GPIO, External Interrupt, ADC Input 34 PC4 GPIO, External Interrupt, ADC Input 35 PC5 GPIO, External Interrupt, ADC Input 36 PC6 GPIO, External Interrupt, TIM3_CH1 37 PC7 GPIO, External Interrupt, TIM3_CH2 38 PC8 GPIO, External Interrupt, USART1_TX 39 PC9 GPIO, External Interrupt, USART1_RX 40 PC10 GPIO, External Interrupt, TIM2_CH3 41 PC11 GPIO, External Interrupt, TIM2_CH4 42 PC12 GPIO, External Interrupt, SPI2_SCK 43 PC13 GPIO, External Interrupt, SWDIO 44 PC14 GPIO, External Interrupt, SWCLK 45 PC15 GPIO, External Interrupt, TIM8_CH1 46 PD0 GPIO, External Interrupt, USART2_TX 47 PD1 GPIO, External Interrupt, USART2_RX 48 PD2 GPIO, External Interrupt, TIM2_CH1 49 PD3 GPIO, External Interrupt, TIM2_CH2 50 PD4 GPIO, External Interrupt, I2C1_SDA 51 PD5 GPIO, External Interrupt, I2C1_SCL 52 PD6 GPIO, External Interrupt, UART3_TX 53 PD7 GPIO, External Interrupt, UART3_RX 54 PD8 GPIO, External Interrupt, TIM1_CH1 55 PD9 GPIO, External Interrupt, TIM1_CH2 56 PD10 GPIO, External Interrupt, SPI2_MISO 57 PD11 GPIO, External Interrupt, SPI2_MOSI 58 PD12 GPIO, External Interrupt, SPI2_SCK 59 PD13 GPIO, External Interrupt, TIM1_CH3 60 PD14 GPIO, External Interrupt, TIM1_CH4 61 PD15 GPIO, External Interrupt, TIM1_BKIN 62 PE0 GPIO, External Interrupt, CAN2_RX 63 PE1 GPIO, External Interrupt, CAN2_TX 64 PE2 GPIO, External Interrupt, UART5_TX 65 PE3 GPIO, External Interrupt, UART5_RX 66 PE4 GPIO, External Interrupt, I2C2_SDA 67 PE5 GPIO, External Interrupt, I2C2_SCL 68 PE6 GPIO, External Interrupt, SPI3_NSS 69 PE7 GPIO, External Interrupt, SPI3_SCK 70 PE8 GPIO, External Interrupt, SPI3_MISO 71 PE9 GPIO, External Interrupt, SPI3_MOSI 72 PE10 GPIO, External Interrupt, TIM4_CH1 73 PE11 GPIO, External Interrupt, TIM4_CH2 74 PE12 GPIO, External Interrupt, TIM4_CH3 75 PE13 GPIO, External Interrupt, TIM4_CH4 76 PE14 GPIO, External Interrupt, EXTI15 77 PE15 GPIO, External Interrupt, EXTI16 78 PF0 GPIO, External Interrupt, ADC Input 79 PF1 GPIO, External Interrupt, ADC Input 80 PF2 GPIO, External Interrupt, ADC Input 81 PF3 GPIO, External Interrupt, ADC Input 82 PF4 GPIO, External Interrupt, ADC Input 83 PF5 GPIO, External Interrupt, ADC Input 84 PF6 GPIO, External Interrupt, ADC Input 85 PF7 GPIO, External Interrupt, ADC Input 86 PF8 GPIO, External Interrupt, ADC Input 87 PF9 GPIO, External Interrupt, ADC Input 88 PF10 GPIO, External Interrupt, ADC Input 89 PF11 GPIO, External Interrupt, ADC Input 90 PF12 GPIO, External Interrupt, ADC Input 91 PF13 GPIO, External Interrupt, ADC Input 92 PF14 GPIO, External Interrupt, ADC Input 93 PF15 GPIO, External Interrupt, ADC Input 94 PG0 GPIO, External Interrupt, ADC Input 95 PG1 GPIO, External Interrupt, ADC Input 96 PG2 GPIO, External Interrupt, ADC Input 97 PG3 GPIO, External Interrupt, ADC Input 98 PG4 GPIO, External Interrupt, ADC Input 99 PG5 GPIO, External Interrupt, ADC Input 100 PG6 GPIO, External Interrupt, ADC Input

Pin Function FAQs (Frequently Asked Questions)

Q: What is the maximum operating voltage of the STM32F722RET6? A: The STM32F722RET6 operates at a voltage range of 2.7V to 3.6V.

Q: Can I use PA9 and PA10 for UART1 communication? A: Yes, PA9 and PA10 are used for UART1TX and UART1RX respectively.

Q: Is the PA13 pin used for debugging? A: Yes, PA13 is used for the SWDIO pin in Serial Wire Debug mode.

Q: How many ADC channels are available on STM32F722RET6? A: The STM32F722RET6 has up to 16 ADC channels.

Q: Can I use PB6 for UART4 transmission? A: Yes, PB6 is used for UART4_TX.

Q: Which pin is used for the external reset signal? A: The NRST pin is used for the external reset.

Q: What is the function of pin PA8 on STM32F722RET6? A: PA8 is used for the clock output signal (CLKOUT).

Q: Is it possible to use PC13 for debugging? A: Yes, PC13 is used for the SWDIO (Serial Wire Debug Data) signal.

Q: How can I connect external I2C devices to this microcontroller? A: You can use PB6 (I2C1SCL) and PB7 (I2C1SDA) for I2C communication.

Q: Can I use PD0 for USART2 communication? A: Yes, PD0 can be used for USART2_TX.

Q: How do I enable SPI communication on STM32F722RET6? A: Use PA4 for SPI1NSS, PA5 for SPI1SCK, PA6 for SPI1MISO, and PA7 for SPI1MOSI.

Q: Can the STM32F722RET6 handle CAN bus communication? A: Yes, it has CAN1RX on PA11 and CAN1TX on PA12.

Q: Is it possible to use PC14 and PC15 for debugging? A: Yes, PC14 is used for SWCLK and PC15 for TIM8_CH1.

Q: How can I reset the microcontroller externally? A: The NRST pin can be used for external reset.

Q: Can I use PE9 for SPI3 communication? A: Yes, PE9 is used for SPI3_MOSI.

Q: Is there a pin for external interrupts? A: Yes, several pins like PA0, PB1, PC0, and others support external interrupts.

Q: Can I use PA4 for an SPI chip select? A: Yes, PA4 serves as the SPI1_NSS (chip select).

Q: How do I connect UART communication? A: Use appropriate pins like PA2 for TX and PA3 for RX for USART2.

Q: Which pins can be used for PWM output? A: Pins such as PC6, PD12, and others can be used for PWM output.

Q: Can I use the STM32F722RET6 for ADC measurements? A: Yes, it supports multiple ADC inputs across several pins, such as PA0, PA1, and others.

This concludes the detailed explanation of the STM32F722RET6 pinout and frequently asked questions.