SH69P461 is an advanced CMOS 4-bit microcontroller based on SH6610D CPU core, with OTPROM, RAM, timers, 5-channel 8-bit ADC, 2 complementary (6+2) -bit PWM, 1 comparator, oscillator clock circuit, watchdog timer, low-voltage reset.
The SH69P461 is a CMOS 4‑bit microcontroller that integrates a CPU core, 2 K×16‑bit OTP ROM, 123×4‑bit RAM, 35 system control registers, 88 data memory locations, a 5‑channel 8‑bit ADC, dual PWM outputs and a comparator. It is intended for DC fan applications and offers flexible clocking options.
The manual provides a complete description of the pin configuration, register map, instruction set, system initialization, oscillator selection, and package dimensions. It also includes tables for system register settings and initial reset values. This manual is written in Chinese.
| OTP ROM size | 2 K × 16 bits |
|---|---|
| RAM size | 123 × 4 bits |
| System control registers | 35 |
| Data memory locations | 88 |
| Operating voltage (VDD) | 2.4 V – 5.5 V (4.5 V – 5.5 V at higher fosc) |
| Clock frequency range | 30 kHz – 10 MHz |
| ADC channels | 5 channels, 8‑bit |
| PWM outputs | 2 complementary (6+2)‑bit PWM channels |
| Comparator outputs | 1 programmable comparator |
| Watchdog timer | Integrated |
| Low‑voltage reset | Integrated, two monitoring levels |
| Package | 8‑pin DIP / SOP / TSSOP |
The device operates with VDD from 2.4 V to 5.5 V (4.5 V – 5.5 V when fosc is 30 kHz – 4 MHz).
The microcontroller is available in an 8‑pin package (DIP, SOP or TSSOP).
The chip includes a 5‑channel, 8‑bit ADC.