SH69K20A is a advanced CMOS 4-bit microcontroller. The device integrates SH6610C CPU core, RAM, ROM, timer and I/O ports, 2MHz/4MHz/6MHz internal RC oscillator. SH69K20A adapts to general-purpose applications.
The SH69K20A is a CMOS 4‑bit microcontroller that integrates the SH6610C CPU core, RAM, ROM, timers, and I/O ports. It supports internal RC oscillators at 2 MHz, 4 MHz and 6 MHz and is suitable for general‑purpose applications.
This manual describes the device’s features, pin layout, register map, instruction set, clock options, power requirements, and initial reset states, along with package dimensions and recommended crystal load capacitors. This manual is written in Chinese.
| ROM size | 1K × 16 bits |
|---|---|
| RAM size | 96 × 4 bits |
| System control registers | 32 |
| Data memory | 64 bytes |
| I/O ports | 15 bidirectional MO ports + 1 input port |
| Stack layers | 4 |
| Timer | 8‑bit auto‑reload timer/counter |
| Internal RC oscillator frequencies | 2 MHz, 4 MHz, 6 MHz |
| Package | 18‑pin DIP/SOP |
It integrates the SH6610C CPU core.
The microcontroller provides four stack layers, including interrupt handling.
Crystal, ceramic, external RC, internal RC (2 MHz/4 MHz/6 MHz), and external clock sources are supported.
It is offered in an 18‑pin DIP/SOP package.