This document describes the features and characteristics of the STM32F103x8B microcontroller released in April 2009. The microcontroller is a medium-density enhanced product based on the ARM Cortex-M3 core, with 64 or 128K bytes of flash memory, USB, CAN, 7 timers, 2 ADCs, and 9 communication interfaces.
This document is a datasheet for the STM32F103x8 and STM32F103xB series of medium-density enhanced microcontrollers. These devices utilize a high-performance ARM Cortex-M3 32-bit RISC core operating at up to 72MHz, with built-in high-speed memory including up to 128K bytes of Flash and 20K bytes of SRAM.
The microcontrollers feature a rich set of peripherals and communication interfaces, including up to two I2C interfaces, three USART interfaces, one USB 2.0 full-speed interface, and one CAN interface. They support a wide range of applications such as motor control, medical devices, and industrial automation, operating within a voltage range of 2.0V to 3.6V. This manual is written in Chinese.
The devices operate with a supply voltage between 2.0 and 3.6 volts.
The core has a maximum operating frequency of 72MHz.
The ADCs have a conversion time of 1 microsecond.