HT32F52243/HT32F52253 Datasheet 32-Bit Arm® Corte.
Holtek Semiconductor
HT32F52253 - 32-Bit Arm Cortex-M0+ Microcontroller
HT32F52243/HT32F52253 Datasheet 32-Bit Arm® Cortex®-M0+ Microcontroller, up to 128 KB Flash and 16 KB SRAM with 1 MSPS ADC, DIV, PDMA, USART, UART, SP.