This guide provides hardware design information for HT32 MCU, covering power, clock, reset, startup and debugging.
The HT32 MCU Hardware Development Guide explains the essential hardware resources needed for HT32 microcontroller designs. It describes power domains (VDD, VDDIO, VDDA, VBAT), clock sources, reset mechanisms, boot options, and debugging interfaces.
Additional sections give practical PCB layout recommendations, boot‑pin considerations, and reference links to Holtek’s website. The document is intended to help new users quickly create safe and stable hardware for HT32 devices. This manual is written in Chinese.
Only HT32 models that have both BOOT0 and BOOT1 pins can select SRAM as a startup source; single‑BOOT models cannot.