Official user manual for Holtek HT48RA series remote‑control microcontrollers, covering hardware, programming, and development tools.
This manual provides complete specifications, hardware architecture, and functional details for the HT48RA0‑2, HT48RA0‑1, HT48RA1, HT48RA3 and HT48RA5 remote‑control microcontrollers. It includes pin assignments, electrical characteristics, timing diagrams, and special features such as pause/wake‑up, carrier generator, and watchdog timer.
The document also describes the programming model, instruction set, assembly language, and the Holtek development environment (HT‑IDE, HT‑ICE emulator, OTP programmer, etc.). A quick‑start section guides users through project creation, compilation, and OTP programming. This manual is written in Chinese.
| CPU architecture | 8‑bit RISC |
|---|---|
| Program memory type | One‑Time Programmable (OTP) |
| Integrated carrier generator | Yes |