EPH3600 RISC II Series Microcontroller Product Specification
The EPH3600 is an 8‑bit RISC II microcontroller designed for low‑power portable devices. It integrates a 10‑bit SAR A/D converter, multiple timers, UART, SPI, IR generator, EL timer, watchdog timer, and a speech synthesizer, making it suitable for handwriting‑recognition applications such as stylus remote controllers and mobile phones.
The datasheet details electrical characteristics, memory organization (16 KB program ROM, 256 KB data ROM, 4 224 bytes RAM), pin assignments, and peripheral functions. It also lists important register usage notes and provides application circuit examples and pad diagrams for PCB design.
| Program ROM size | 16K words maximum |
|---|---|
| Data ROM size | 256K words maximum |
| I/O ports | 1 input port (Port A) and 24 general I/O pins (Port B, C, D) |
| Timers | One 16‑bit general timer with capture and event counter, two 8‑bit timers, EL timer, watchdog timer |
| A/D converter | 10‑bit SAR A/D converter with touch‑screen controller |
The program ROM can address up to 16 K words.
It provides one input port (Port A) and 24 general I/O pins across Port B, Port C, and Port D.