STM32F103C8T6 Detailed explanation of pin function specifications and circuit principle instructions
The STM32F103 C8T6 is a microcontroller from STMicroelectronics, part of the STM32 family of ARM Cortex-M3-based microcontrollers. This specific model is a 32-bit microcontroller, popular in various embedded systems due to its balance of performance and Power efficiency.
Packaging Details and Pin Functions:
The STM32F103C8T6 typically comes in the LQFP-48 (Low-profile Quad Flat Package with 48 pins). Below is the detailed description of the 48 pins with their respective functions.
Pin Number Pin Name Function Description 1 VDD Power supply pin (3.3V) 2 VSS Ground pin 3 NRST External reset pin 4 PA13 SWDIO (Serial Wire Debug I/O) 5 PA14 SWCLK (Serial Wire Clock ) 6 PA15 USART1 TX (USART1 Transmit Pin) 7 PB3 USART1 RX (USART1 Receive Pin) 8 PB4 SPI1 NSS (Slave Select for SPI1) 9 PB5 SPI1 SCK (SPI1 Clock) 10 PB6 SPI1 MISO (SPI1 Master In Slave Out) 11 PB7 SPI1 MOSI (SPI1 Master Out Slave In) 12 PB8 I2C1 SCL (I2C Clock) 13 PB9 I2C1 SDA (I2C Data) 14 PA8 MCO (Microcontroller Clock Output) 15 PA9 USART1 TX (USART1 Transmit Pin) 16 PA10 USART1 RX (USART1 Receive Pin) 17 PA11 USB DM (USB Data Minus) 18 PA12 USB DP (USB Data Plus) 19 PB0 GPIO (General Purpose Input/Output) 20 PB1 GPIO (General Purpose Input/Output) 21 PB2 GPIO (General Purpose Input/Output) 22 PC13 TAMPER (Tamper detection pin) 23 PC14 OSC_IN (External Oscillator Input) 24 PC15 OSC_OUT (External Oscillator Output) 25 PA0 ADC_IN0 (Analog to Digital Converter Input 0) 26 PA1 ADC_IN1 (Analog to Digital Converter Input 1) 27 PA2 ADC_IN2 (Analog to Digital Converter Input 2) 28 PA3 ADC_IN3 (Analog to Digital Converter Input 3) 29 PA4 ADC_IN4 (Analog to Digital Converter Input 4) 30 PA5 ADC_IN5 (Analog to Digital Converter Input 5) 31 PA6 ADC_IN6 (Analog to Digital Converter Input 6) 32 PA7 ADC_IN7 (Analog to Digital Converter Input 7) 33 PB10 SPI1 SCK (SPI Clock) 34 PB11 SPI1 MISO (SPI Master In Slave Out) 35 PB12 SPI1 MOSI (SPI Master Out Slave In) 36 PB13 SPI1 SCK (SPI Clock) 37 PB14 SPI1 NSS (Slave Select for SPI1) 38 PB15 SPI1 MISO (SPI Master In Slave Out) 39 PC0 ADC_IN8 (Analog to Digital Converter Input 8) 40 PC1 ADC_IN9 (Analog to Digital Converter Input 9) 41 PC2 ADC_IN10 (Analog to Digital Converter Input 10) 42 PC3 ADC_IN11 (Analog to Digital Converter Input 11) 43 PC4 ADC_IN12 (Analog to Digital Converter Input 12) 44 PC5 ADC_IN13 (Analog to Digital Converter Input 13) 45 PC6 ADC_IN14 (Analog to Digital Converter Input 14) 46 PC7 ADC_IN15 (Analog to Digital Converter Input 15) 47 PA11 USB DM (USB Data Minus) 48 PA12 USB DP (USB Data Plus)FAQ – 20 Common Questions About STM32F103C8T6 Pin Functions
What is the maximum operating voltage for STM32F103C8T6? The maximum operating voltage for STM32F103C8T6 is 3.6V.
What are the power supply pins on STM32F103C8T6? The power supply pins are VDD (Pin 1) for positive voltage and VSS (Pin 2) for ground.
Can STM32F103C8T6 support USB functionality? Yes, STM32F103C8T6 supports USB with pins PA11 (USB DM) and PA12 (USB DP).
What is the function of pin PA13? Pin PA13 is used for SWDIO (Serial Wire Debug Input/Output).
What is the function of pin PA14? Pin PA14 is used for SWCLK (Serial Wire Clock), part of the debugging interface .
How can I use USART1 on STM32F103C8T6? You can use USART1 TX (Pin 6) and USART1 RX (Pin 7) for transmitting and receiving serial data.
What are the ADC input pins on STM32F103C8T6? The ADC input pins are PA0 to PA7 and PC0 to PC7 for analog-to-digital conversion.
Can STM32F103C8T6 support I2C communication? Yes, STM32F103C8T6 supports I2C with pins PB8 (I2C1 SCL) and PB9 (I2C1 SDA).
Which pin is used for SPI communication? STM32F103C8T6 supports SPI on pins PB3 to PB7, including NSS, SCK, MISO, and MOSI.
Can STM32F103C8T6 interface with external oscillators? Yes, it supports an external oscillator with pins PC14 (OSCIN) and PC15 (OSCOUT).
What is the function of pin NRST? Pin NRST is the external reset pin, which allows for hardware reset of the microcontroller.
How many GPIO pins does STM32F103C8T6 have? STM32F103C8T6 has 16 GPIO pins, accessible from PA0 to PA7 and PB0 to PB7.
What is the maximum clock frequency of STM32F103C8T6? The STM32F103C8T6 can operate at a maximum clock frequency of 72 MHz.
Can STM32F103C8T6 be used for low-power applications? Yes, STM32F103C8T6 supports low-power modes like Sleep and Stop.
What is the purpose of pin PA8? Pin PA8 is the MCO (Microcontroller Clock Output) pin, which can be used to output the system clock.
How does STM32F103C8T6 support external interrupts? External interrupts are supported via GPIO pins and the EXTI (External Interrupt) lines.
What is the function of pins PB12 to PB15? These pins are used for SPI communication (NSS, SCK, MISO, MOSI).
What is the function of pin PA10? Pin PA10 is used for USART1 RX, which is used to receive data serially.
What kind of temperature range does STM32F103C8T6 support? It typically supports a temperature range of -40°C to +85°C.
Can STM32F103C8T6 be programmed through USB? Yes, STM32F103C8T6 can be programmed via USB using the onboard USB interface.
This detailed description of the STM32F103C8T6’s pins and functionality should provide a comprehensive understanding of how to utilize the microcontroller's capabilities in various embedded applications.
