SH6603 is a 4-bit single-chip microcontroller with an LCD driver. It features a ROM of 2048 X 16 bits and a RAM of 128 X 4 bits (data memory). The operating voltage ranges from 2.2V to 3.6V (typical value 3.0V). It has 12 CMOS bidirectional input/output (I/O) ports, 4 layers of nested subroutines (including interrupts), two 8-bit timers/counters with preset circuits, on-chip watchdog timer, and 4 priority interrupt sources.
The SH6603 is a 4‑bit monolithic microcontroller that integrates an LCD driver, EL‑LIGHT driver, programmable sound generator, RFC circuit and watchdog timer. It uses the SH6610C core, provides 2048 × 16‑bit ROM, 128 × 4‑bit RAM, and operates from 2.2 V‑3.6 V.
The manual details the pin layout, system registers, port configurations, bonding options, clock sources, low‑power modes (HALT and STOP) and includes typical application circuits and register maps for developers. This manual is written in Chinese.
| ROM size | 2048 × 16 bits |
|---|---|
| RAM size | 128 × 4 bits |
| Operating voltage | 2.2 V – 3.6 V (typical 3.0 V) |
| I/O ports | 12 CMOS bidirectional ports |
| Timers | Two 8‑bit timers with prescaler |
| Watchdog timer | Integrated watchdog timer |
| LCD driver | 4 × 34 segment driver |
| EL‑LIGHT driver | Built‑in electroluminescent driver |
| RFC circuit | Resistor‑frequency conversion circuit |
| Programmable sound generator | Single‑channel PSG |
| Low‑power modes | HALT and STOP |
| Low‑power consumption | < 2 µA at 32.768 kHz, 3 V |
The SH6603 uses the SH6610C core.
The device provides 12 CMOS bidirectional input/output ports.
It operates from 2.2 V to 3.6 V, with a typical value of 3.0 V.
The microcontroller supports HALT and STOP low‑power modes.