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CH32F203 Datasheet
V2.4
Overview
CH32F203 series is an industrial-grade enhanced small-and-medium capacity general-purpose microcontroller based on 32-bit ARM○R CortexTM-M3 core, which supports up to 144MHz system main frequency, high performance and low-power consumption. CH32F203 series integrates dual USB interface, supports USB Host and USB Device function, with a group of CAN interface (2.0B active), 2 groups of op-amp comparators, 4 groups of USART, 2 I2C, 12-bit ADC, 10-way Touchkey, multiple groups of timers and other rich peripheral resources.