The STM32F072C8T6 belongs to the STM32 family of microcontrollers, which is produced by STMicroelectronics. It is based on the ARM Cortex-M0 core and features a variety of functionalities designed for a wide range of applications.
The STM32F072C8T6 microcontroller comes in a LQFP-48 (Low-profile Quad Flat Package) package, which has 48 pins. Below is a detailed description of all the pins and their respective functions.
Pin Function Table for STM32F072C8T6 (48-Pin Package)
Pin Number Pin Name Function Description 1 VSS Ground pin (digital ground) 2 VDD Supply voltage (typically 3.3V) 3 NRST External reset pin (active low) 4 SWDIO Serial Wire Debug I/O pin 5 SWCLK Serial Wire Debug Clock pin 6 PA13 SWDIO (can also be used as a general I/O) 7 PA14 SWCLK (can also be used as a general I/O) 8 PA15 General I/O pin 9 PB3 General I/O pin 10 PB4 General I/O pin 11 PB5 General I/O pin 12 PB6 General I/O pin 13 PB7 General I/O pin 14 PB8 General I/O pin 15 PB9 General I/O pin 16 PB10 General I/O pin 17 PB11 General I/O pin 18 PB12 General I/O pin 19 PB13 General I/O pin 20 PB14 General I/O pin 21 PB15 General I/O pin 22 PC13 General I/O pin 23 PC14 General I/O pin 24 PC15 General I/O pin 25 PD0 General I/O pin 26 PD1 General I/O pin 27 PD2 General I/O pin 28 PD3 General I/O pin 29 PD4 General I/O pin 30 PD5 General I/O pin 31 PD6 General I/O pin 32 PD7 General I/O pin 33 PD8 General I/O pin 34 PD9 General I/O pin 35 PD10 General I/O pin 36 PD11 General I/O pin 37 PD12 General I/O pin 38 PD13 General I/O pin 39 PD14 General I/O pin 40 PD15 General I/O pin 41 VREF+ Reference voltage for analog functions 42 VREF- Ground reference for analog functions 43 PA0 Analog input pin (can also be used as a general I/O pin) 44 PA1 Analog input pin (can also be used as a general I/O pin) 45 PA2 Analog input pin (can also be used as a general I/O pin) 46 PA3 Analog input pin (can also be used as a general I/O pin) 47 PA4 General I/O pin 48 PA5 General I/O pin20 Common FAQs about the STM32F072C8T6 Pin Functions
Q: What is the function of the NRST pin on STM32F072C8T6? A: The NRST pin is the external reset pin, and it is active low. It is used to reset the microcontroller.
Q: Can I use PA13 and PA14 for general I/O? A: Yes, PA13 and PA14 can be used as general I/O pins, but by default, they are configured for Serial Wire Debug (SWDIO and SWCLK, respectively).
Q: How do I reset the STM32F072C8T6? A: You can reset the microcontroller by pulling the NRST pin low.
Q: What voltage range should be applied to the VDD pin? A: The VDD pin should typically have a voltage range of 3.0 to 3.6V.
Q: What is the purpose of the VREF+ and VREF- pins? A: VREF+ provides the reference voltage for the analog-to-digital converter (ADC) while VREF- provides the ground reference for the ADC.
Q: Can PB3, PB4, PB5, etc., be used for digital I/O? A: Yes, these pins can be configured as general digital I/O, depending on your needs.
Q: Can I use the PA0 to PA3 pins as analog inputs? A: Yes, PA0 to PA3 can be configured as analog inputs for the ADC.
Q: What is the role of the SWDIO and SWCLK pins? A: SWDIO is the data I/O for debugging, and SWCLK is the clock for debugging. These are used for Serial Wire Debugging.
Q: How many pins does the STM32F072C8T6 have in total? A: The STM32F072C8T6 has 48 pins.
Q: Can the PA15 pin be used as a regular I/O? A: Yes, PA15 is a general-purpose I/O pin that can be configured for various functions.
Q: What is the pin configuration for the reset functionality? A: The reset function is controlled by the NRST pin, which is active low.
Q: What is the maximum current rating for each I/O pin? A: Each I/O pin can typically drive 25mA of current. However, check the datasheet for the specific conditions.
Q: Are there any dedicated pins for the clock input? A: The STM32F072C8T6 does not have dedicated clock input pins, but the external oscillator pins (such as HSE or LSE) can be used for clock sources.
Q: Can I use the PB8 and PB9 pins for UART communication? A: Yes, PB8 and PB9 can be configured as UART1 TX and RX pins for serial communication.
Q: What is the purpose of the PA4 pin? A: PA4 is a general-purpose I/O pin but can also be configured for alternative functions.
Q: How can I use the PA13 pin for a different function? A: PA13 can be reconfigured to a different I/O function using alternate function mappings.
Q: Are there analog functions available on PB1 and PB2? A: Yes, PB1 and PB2 can be used as analog input pins.
Q: Does the STM32F072C8T6 support PWM outputs? A: Yes, several pins support Pulse Width Modulation (PWM) output.
Q: Can I use the PC13, PC14, and PC15 pins for external interrupts? A: Yes, these pins can be configured for external interrupts or event detection.
Q: How do I enable or disable specific pin functions? A: Pin functions can be modified by setting the appropriate bits in the pin configuration registers of the microcontroller.
This provides a detailed overview of the STM32F072C8T6 pin functions, packaging, and a helpful FAQ section. If you need more specific details, please refer to the official datasheet for STM32F072C8T6 from STMicroelectronics.
