The "STM32G070RBT6" is a microcontroller from STMicroelectronics under the STM32 family of 32-bit microcontrollers based on ARM Cortex-M0+ core.
Pin Function Specifications and Circuit Principles
The STM32G070RBT6 is packaged in a LQFP-48 (Low-profile Quad Flat Package with 48 pins) type package. This microcontroller offers a wide range of I/O functions, advanced peripherals, and features that allow it to be used in various applications such as consumer electronics, industrial automation, and automotive systems.
The total number of pins for the STM32G070RBT6 is 48, and each pin serves different functions. Below is the detailed description of the pin functions:
Pin Function List (LQFP-48 Package)
Pin Number Pin Name Pin Function 1 VSS Ground pin. 2 VDDA Analog power supply (3.3V typical). 3 VREF+ Reference voltage input for ADC. 4 VREF- Reference voltage input for ADC (ground reference). 5 PA13 SWDIO (Serial Wire Debug Data Input/Output). 6 PA14 SWCLK (Serial Wire Debug Clock ). 7 PA15 USART2_TX (Universal Synchronous Asynchronous Receiver Transmitter, Transmit). 8 PB3 USART2_RX (Universal Synchronous Asynchronous Receiver Transmitter, Receive). 9 PB4 I2C1_SCL (I2C clock). 10 PB5 I2C1_SDA (I2C data). 11 PA8 MCO (Microcontroller Clock Output). 12 PA9 USART1_TX (Universal Synchronous Asynchronous Receiver Transmitter, Transmit). 13 PA10 USART1_RX (Universal Synchronous Asynchronous Receiver Transmitter, Receive). 14 PA11 USB_DM (USB Data Minus). 15 PA12 USB_DP (USB Data Plus). 16 PB0 GPIO Pin (General Purpose Input/Output). 17 PB1 GPIO Pin (General Purpose Input/Output). 18 PB6 SPI1_SCK (SPI Clock). 19 PB7 SPI1_MISO (SPI Master In Slave Out). 20 PB8 SPI1_MOSI (SPI Master Out Slave In). 21 PB9 SPI1_NSS (SPI Chip Select). 22 PC0 GPIO Pin (General Purpose Input/Output). 23 PC1 GPIO Pin (General Purpose Input/Output). 24 PC2 GPIO Pin (General Purpose Input/Output). 25 PC3 GPIO Pin (General Purpose Input/Output). 26 PC4 GPIO Pin (General Purpose Input/Output). 27 PC5 GPIO Pin (General Purpose Input/Output). 28 PC6 I2C2_SCL (I2C Clock for second I2C bus). 29 PC7 I2C2_SDA (I2C Data for second I2C bus). 30 PD0 GPIO Pin (General Purpose Input/Output). 31 PD1 GPIO Pin (General Purpose Input/Output). 32 PD2 GPIO Pin (General Purpose Input/Output). 33 PD3 GPIO Pin (General Purpose Input/Output). 34 PD4 GPIO Pin (General Purpose Input/Output). 35 PD5 GPIO Pin (General Purpose Input/Output). 36 PD6 GPIO Pin (General Purpose Input/Output). 37 PD7 GPIO Pin (General Purpose Input/Output). 38 PE0 GPIO Pin (General Purpose Input/Output). 39 PE1 GPIO Pin (General Purpose Input/Output). 40 PE2 GPIO Pin (General Purpose Input/Output). 41 PE3 GPIO Pin (General Purpose Input/Output). 42 PE4 GPIO Pin (General Purpose Input/Output). 43 PE5 GPIO Pin (General Purpose Input/Output). 44 PE6 GPIO Pin (General Purpose Input/Output). 45 PE7 GPIO Pin (General Purpose Input/Output). 46 RESET Reset pin, active low. 47 NC No connection. 48 NC No connection.Pin Function FAQs
Q1: What is the function of pin PA13 on the STM32G070RBT6? A1: PA13 is the SWDIO (Serial Wire Debug Data Input/Output) pin, used for debugging purposes.
Q2: What does the VDDA pin represent? A2: VDDA is the analog power supply pin, typically 3.3V, powering the analog peripherals.
Q3: How does pin PA14 work in the STM32G070RBT6? A3: PA14 is the SWCLK (Serial Wire Debug Clock) pin used for debugging with the Serial Wire Debug interface .
Q4: What are the uses of pins PA15, PB3, and PB4? A4: PA15 is USART2TX (Transmit) for serial communication, PB3 is I2C1SCL (Clock for I2C communication), and PB4 is I2C1_SDA (Data for I2C communication).
Q5: What does the PA8 pin do? A5: PA8 is the MCO (Microcontroller Clock Output) pin, which outputs the microcontroller’s clock to other systems.
Q6: How do I use the USB pins PA11 and PA12? A6: PA11 is USBDM (USB Data Minus), and PA12 is USBDP (USB Data Plus), used for USB data communication.
Q7: What is the function of the SPI1 interface on the STM32G070RBT6? A7: SPI1 includes pins PB6 (SCK - Clock), PB7 (MISO - Master In Slave Out), PB8 (MOSI - Master Out Slave In), and PB9 (NSS - Chip Select) for SPI communication.
Q8: Can pins PA9 and PA10 be used for UART communication? A8: Yes, PA9 is USART1TX (Transmit) and PA10 is USART1RX (Receive) for UART serial communication.
Q9: How do I use the I2C2 interface on this MCU? A9: I2C2 is provided by pins PC6 (SCL) and PC7 (SDA) for clock and data transfer, respectively.
Q10: What is the function of the RESET pin? A10: The RESET pin is used to reset the microcontroller when pulled low.
Q11: What can the pins labeled "NC" be used for? A11: NC pins are not connected to any function and are left unconnected.
Q12: How many general-purpose I/O pins are available on this MCU? A12: There are 48 pins in total, many of which are used as general-purpose input/output pins (GPIO).
Q13: Can I use the STM32G070RBT6 for USB communication? A13: Yes, PA11 and PA12 support USB communication as USBDM and USBDP.
Q14: Are there any analog pins in the STM32G070RBT6? A14: Yes, VDDA, VREF+, and VREF- are the analog pins for analog power and reference voltages.
Q15: Can I use PA13 and PA14 for debugging? A15: Yes, PA13 (SWDIO) and PA14 (SWCLK) are used for debugging with the Serial Wire Debug interface.
Q16: Does the STM32G070RBT6 support I2C communication? A16: Yes, it supports I2C communication through pins PB4 (SCL), PB5 (SDA) for I2C1 and PC6 (SCL), PC7 (SDA) for I2C2.
Q17: What is the purpose of the MCO pin PA8? A17: The MCO pin PA8 is used to output the microcontroller's clock signal to other devices.
Q18: Can the STM32G070RBT6 be used in automotive applications? A18: Yes, the STM32G070RBT6 is suitable for automotive applications due to its low-power features, reliability, and communication protocols like UART, SPI, and I2C.
Q19: Can the STM32G070RBT6 be used for audio applications? A19: Yes, with its high-performance core and multiple communication interfaces, it can be used in audio-related applications.
Q20: How can I interface this microcontroller with external memory? A20: External memory can be interfaced using SPI or I2C, which are supported by this microcontroller on pins such as PB6-PB9 for SPI and PB4-PB5 for I2C.
This pinout provides a detailed overview of the STM32G070RBT6's functionality, ensuring you can use the microcontroller efficiently for various applications.