The 38C2 series is an 8-bit microcomputer based on the 740 family core technology
The 38C2 Group is an 8‑bit CMOS microcomputer based on the 740 family core. It includes an LCD drive control circuit, a 10‑channel A‑D converter, serial I/O, timers, PWM, and a watchdog timer. Various versions differ in ROM/Flash memory size, RAM size, and package type (64‑pin QFP).
The document lists pin configurations, functional block diagrams, part numbering, memory expansion plans, and a table of supported product part numbers. It also contains electrical specifications such as operating voltage, temperature range, and current limits, as well as a revision history.
| Operating temperature range | -20 to 85 °C |
|---|---|
| Power supply voltage | 1.8 V to 5.5 V |
| LED direct‑drive port current | average 15 mA, peak 30 mA, total 90 mA |
| Package type | 64‑pin QFP (FP: 64P6N‑A, HP: 64P6Q‑A) |
The device operates from –20 °C to 85 °C.
It can be powered from 1.8 V up to 5.5 V.
The chip provides an 8‑bit I/O port (P0) and additional ports P1‑P6 for various functions.