32F103 series MCU, based on 32-bit ARM?Cortex?-M3 core, built-in AHB high-performance bus, combined with high-speed memory and DMA, can realize fast data storage and processing; built-in APB advanced peripheral bus, combined with rich peripherals And enhanced I/O, which can ensure fast connection and flexible control of products.

Systems and Architecture

ARM?Cortex?-M3

Main frequency 96MHz

Built-in AHB and APB

storage

Flash: 16-512KB

SRAM: 4-128KB

ADCs and Sensors

12-bit ADC/DAC

Conversion range: 0~VREF+

Number of external channels: 21

On-chip temperature sensor: 1

timer

16-bit general purpose timer: 3/4

16-bit base timer: 2

16-bit advanced timer: 1/2, with dead-band control and emergency braking

Watchdog timers: 2, independent and windowed

System timer: 1, 24-bit auto-decrement

I/O

Up to 112/80/51/37/26 I/O

All I/O can be mapped to external interrupt controller

Almost all I/Os tolerate 5V signal input

Power consumption

Support sleep, stop and standby modes

Support battery power supply, RTC and backup register work

Operating power consumption: 340 μA/MHz

Power and reset

Supply voltage 2.0V~3.6V

Built-in power-on/power-down reset

Built-in configurable voltage monitoring module

debug mode

Serial debug SWD and JTAG debug interface

safety

96-bit non-rewritable unique identifier

Support intrusion detection

Peripherals

USART : 5

I2C : 2

SPI : 3

I2S : 2

USB: 1

CAN: 1

SDIO: 1

SDRAM: 1

Supports simultaneous use of USB and CAN interfaces

package

LQFP144/LQFP100/LQFP64/LQFP48/QFP36