STM32F103C4T6A
32-bit ARM Cortex M3 microcontrollers with 16KB flash memory
Manufacturer： stm
series introduction
# Introduction to the STM32F103C4T6A Product Series
## 1. Overview
The STM32F103C4T6A is a member of the popular STM32F103 series of microcontrollers developed by STMicroelectronics. These microcontrollers are based on the ARM Cortex - M3 32 - bit RISC core, which offers a high - performance, low - power solution for a wide range of embedded applications. The STM32F103C4T6A combines the power of the Cortex - M3 core with a rich set of peripherals, making it suitable for various industrial, consumer, and automotive applications.
## 2. Key Features
### 2.1 Core and Performance
- **ARM Cortex - M3 Core**: The ARM Cortex - M3 core provides a high - performance processing engine with a Harvard architecture and a 3 - stage pipeline. It supports a wide range of instructions, including Thumb - 2 instruction set, which offers a good balance between code density and performance. The core can operate at a maximum frequency of 72 MHz, enabling fast execution of complex algorithms.
- **Memory**: The STM32F103C4T6A is equipped with 16 KB of Flash memory, which is used to store the program code. It also has 4 KB of SRAM, which provides fast access for data storage during program execution. The Flash memory has a high - endurance write cycle, allowing for reliable and long - term code storage.
### 2.2 Peripherals
#### 2.2.1 Communication Interfaces
- **USART (Universal Synchronous/Asynchronous Receiver/Transmitter)**: It has multiple USART interfaces, which can be used for serial communication with other devices such as sensors, displays, or other microcontrollers. The USART supports various communication modes, including asynchronous, synchronous, and single - wire modes, and can operate at different baud rates.
- **SPI (Serial Peripheral Interface)**: The SPI interface provides a high - speed serial communication protocol, which is commonly used for communicating with external devices such as flash memories, sensors, and LCD displays. It supports full - duplex communication and can operate at high clock frequencies, enabling fast data transfer.
- **I2C (Inter - Integrated Circuit)**: The I2C interface is a widely used serial communication protocol for connecting low - speed devices such as EEPROMs, sensors, and real - time clocks. It uses a two - wire bus structure, which simplifies the hardware design and reduces the number of pins required for communication.
#### 2.2.2 Timers
- **General - Purpose Timers**: The STM32F103C4T6A is equipped with multiple general - purpose timers, which can be used for a variety of applications such as pulse width modulation (PWM), input capture, and output compare. These timers can be used to control motors, generate waveforms, and measure time intervals.
- **SysTick Timer**: The SysTick timer is a 24 - bit down - counter that is part of the Cortex - M3 core. It is used for generating system ticks, which are used for operating system scheduling and time - based tasks.
#### 2.2.3 Analog - to - Digital Converter (ADC)
- The microcontroller has an integrated ADC with up to 10 channels. The ADC can convert analog signals from external sensors or other analog sources into digital values with a resolution of up to 12 bits. This allows the microcontroller to interface with a wide range of analog sensors, such as temperature sensors, pressure sensors, and light sensors.
### 2.3 Low - Power Modes
Images for reference
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