HT32F52220/HT32F52230 Datasheet 32-Bit ARM® Corte.
Holtek Semiconductor
HT32F52220 - 32-Bit Arm Cortex-M0+ Microcontroller
HT32F52220/HT32F52230 Datasheet 32-Bit ARM® Cortex™-M0+ Microcontroller, up to 32 KB Flash and 4 KB SRAM with 1 MSPS ADC, USART, UART, SPI, I2C, GPTM,.