Technical data sheet for the Renesas 3803 Group (Spec.L) 8‑bit CMOS microcomputer, covering features, pinout, performance and package options.
The Renesas 3803 Group (Spec.L) is an 8‑bit single‑chip CMOS microcomputer based on the 740 family core. It is intended for household products, office automation equipment, and control systems that require analog signal processing, offering built‑in A/D and D/A converters, UART interfaces, timers, PWM, and a watchdog timer.
The document provides detailed specifications, pin configurations for four package types (64‑pin SDIP, LQFP, and FLGA), functional block diagrams, and performance tables. It also includes part numbering, memory expansion plans, and legal notices for product use.
| Minimum instruction execution time | 0.24 µs (at 16.8 MHz) |
|---|---|
| Mask ROM / Flash memory size | 60 Kbytes |
| RAM size | 2048 bytes |
| Programmable I/O ports | 56 |
| Interrupt sources | 21 (16 vectors) |
| A/D converter | 10‑bit × 16 channels (8‑bit reading enabled) |
| D/A converter | 8‑bit × 2 channels |
| Watchdog timer | 16‑bit × 1 |
| Operating temperature range | -20 °C to 85 °C |
The minimum instruction execution time is 0.24 µs when the device runs at a 16.8 MHz oscillation frequency.
It provides 56 programmable input/output ports.
The device operates from –20 °C up to 85 °C.