STM32F100VCT6 Series

series introduction

# Introduction to the STM32F100VCT6 Product Series

## 1. Overview
The STM32F100VCT6 is part of STMicroelectronics' STM32F100 value line microcontroller series. These microcontrollers are designed to offer a cost - effective yet feature - rich solution for a wide range of embedded applications. With a focus on providing essential functionality at an affordable price, the STM32F100VCT6 is suitable for developers who need to balance performance and cost in their projects.

## 2. Core and Architecture
### ARM Cortex - M3 Core
- The STM32F100VCT6 is based on the ARM Cortex - M3 32 - bit RISC core. This core offers a high level of performance with a Harvard architecture, which separates the instruction and data buses. This allows for simultaneous access to instructions and data, resulting in faster execution times.
- It has a Thumb - 2 instruction set, which combines the code density of 16 - bit Thumb instructions with the performance of 32 - bit ARM instructions. This enables developers to write more compact code while still achieving high - speed operation.

### Memory and Bus Architecture
- **Flash Memory**: It is equipped with 256 KB of embedded Flash memory. This non - volatile memory is used to store the program code of the application. The Flash memory has a high - speed access time, which allows for fast code execution.
- **SRAM**: The microcontroller has 32 KB of static random - access memory (SRAM). SRAM is used for storing variables, data buffers, and the stack during program execution. The relatively large SRAM size provides sufficient space for most applications to handle data efficiently.
- The memory and bus architecture also includes a high - performance AHB (Advanced High - performance Bus) and APB (Advanced Peripheral Bus) system. The AHB is used for high - speed communication between the core, memory, and high - speed peripherals, while the APB is used for connecting lower - speed peripherals.

## 3. Peripherals
### General - Purpose Input/Output (GPIO)
- The STM32F100VCT6 has a total of 80 GPIO pins. These pins can be configured as either input or output, and they support various modes such as push - pull, open - drain, and pull - up/down resistors. GPIO pins are commonly used for interfacing with external devices such as sensors, actuators, and displays.
- They can also be used for bit - banging communication protocols or for simple control tasks.

### Timers
- **Advanced - Control Timers**: There are 2 advanced - control timers. These timers are capable of generating complex waveforms, such as PWM (Pulse - Width Modulation) signals with high precision. They are often used in motor control applications, where accurate control of the motor speed and torque is required.
- **General - Purpose Timers**: There are 4 general - purpose timers. These timers can be used for a variety of tasks, including measuring time intervals, generating periodic interrupts, and implementing simple counting functions.
- **Basic Timers**: There are 2 basic timers, which are mainly used for generating simple time - base signals.

### Communication Interfaces
- **USART (Universal Synchronous/Asynchronous Receiver/Transmitter)**: It has 3 USART interfaces. USARTs are widely used for serial communication with other devices, such as computers, sensors, and modems. They support both synchronous and asynchronous communication modes and can operate at various baud rates.
- **SPI (Serial Peripheral Interface)**: There are 2 SPI interfaces. SPI is