CH32F203CBT6

Overview

The CH32F203 is an industrial-grade enhanced low-power general-purpose MCU based on the Cortex-M3 core. CH32F203 features high performance. The system clock frequency can be up to 144MHz. Operating power consumption is as low as 69uA/MHz at the highest system clock frequency. CH32F203 integrates 2-channel USB interface which supports USB Host and USB Device functions, and provides abundant peripheral resources such as 1-channel CAN interface (2.0B active), 2 OPAs, 3 UARTs, 2 IIC interfaces, 12-bit ADC clock, and 10-channel Touchkey.

System Block Diagram

Features

• Cortex-M3 core, up to 144MHz system clock frequency.
• Single-cycle multiplication and hardware division.
• 20KB SRAM, 64KB Flash.
• Supply voltage: 2.5/3.3V. GPIO unit is supplied independently.
• Low-power modes: sleep, stop, standby.
• As low as 69.3uA/MHz in Run mode.
• As low as 22.4uA/MHz in Sleep mode.
• Power-on/power-down reset, programmable voltage detector.
• 2 x 18-channel general DMA.
• 2 operational amplifier comparators.
• 10-channel 12-bit ADC converters, 10-channel TouchKey.
• 4 timers.
• One USB2.0 full-speed host/device interface.
• One USB2.0 full-speed device interface.
• 3 USARTs.
• One CAN interface (2.0B active).
• 2 IIC interfaces, 2 SPI interfaces.
• 37 I/O ports, can be mapped to 16 external interrupts.
• CRC calculation unit, 96-bit unique ID.
• Serial 2-wire debug interface.
• Packages: LQFP48, LQFP32.

Product Selection Guide