Core Performance: ARM Cortex-M3 32-bit RISC core, maximum 120MHz operating frequency, 2.0V~3.6V power supply, operating temperature range -40℃ ~ +105℃, stable operation over a wide temperature range leap-tek.c... Storage Resources: Built-in 512KB Flash program memory, 97KB SRAM, with FSMC external memory controller, capable of connecting large-capacity external memory, meeting the needs of complex programs and caching uploadcdn.... Rich Peripherals: Integrated 3-channel 12-bit 1MSPS ADC, 2-channel DAC, multiple 16-bit timers, 6-channel USART, 3-channel SPI, 2-channel I2C, CAN, USB2.0 full-speed interface, 51 GPIOs, complete peripherals Shenzhen Hangshun... Domestic Compatible Replacement: Hangshun HK domestic MCU, LQFP64 package, software and hardware compatible with STM32F103RET6, can be directly replaced pin to pin, reducing material costs, stable supply Shenzhen Hangshun... Wide Application Scenarios: Suitable for embedded projects such as industrial control, motor drive, power equipment, instruments and meters, consumer electronics, smart homes, BMS battery management, etc., datasheet is available for download.