The 3886 group is an 8-bit microcomputer based on the 740 family core technology. It is designed for controlling systems that require analog signal processing and includes two serial I/O functions, A-D converters, D-A converters, system data bus interface function, watchdog timer, and comparator circuit. The multi-master I2C bus interface can be added by option.
The Mitsubishi 3886 Group is an 8‑bit CMOS microcomputer offering analog signal processing, serial I/O, A‑D/D‑A converters, watchdog timer, and optional multi‑master I²C bus. It is available in mask‑ROM, EPROM, One‑Time‑PROM and flash‑memory versions with various package types.
The document provides pin configurations, functional block diagrams, part numbering, memory expansion options, and detailed electrical specifications such as voltage ranges, power dissipation, and operating temperature.
| ROM size | 4096 bytes (example size) |
|---|---|
| RAM size | 256 bytes (example size) |
| Maximum clock frequency | 10 MHz (high‑speed mode) |
| Power dissipation (high‑speed) | 40 mW |
The flash‑memory version requires a supply voltage of 4.0 V to 5.5 V.
The high‑speed mode runs at a 10 MHz oscillation frequency.
That version provides 1024 bytes of RAM.