The DS80C320/DS80C323 series are high-performance, low-power 8051-compatible microcontrollers that are available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP packages.
The DS80C320 and DS80C323 are 80C32‑compatible microcontrollers that run at up to 33 MHz (DS80C320) or 18 MHz (DS80C323). They provide four 8‑bit I/O ports, three 16‑bit timer/counters, two full‑duplex hardware serial ports, dual data pointers and a programmable watchdog timer, all while consuming low power. The devices are pin‑compatible with standard 80C32 packages (40‑pin DIP, 44‑pin PLCC, 44‑pin TQFP) and support both 5 V and 2.7 V operation, making them suitable for upgrading existing 5 V systems or for low‑power designs.
The datasheet includes a detailed pin description, electrical specifications (supply voltage, current consumption, temperature ranges), instruction‑set timing tables, and ordering part numbers. It also references a separate High‑Speed Microcontroller User’s Guide for full functional details.
| Operating Supply Voltage (VCC) | 4.5 V – 5.5 V |
|---|---|
| Maximum Clock Speed (DS80C320) | 33 MHz |
| Maximum Clock Speed (DS80C323) | 18 MHz |
| Operating Voltage Range (DS80C323) | 2.7 V – 5.5 V |
| Supply Current Active Mode @ 25 MHz | 30 mA – 45 mA |
| Number of Full‑Duplex Serial Ports | 2 |
| Available Packages | 40‑pin DIP, 44‑pin PLCC, 44‑pin TQFP |
The DS80C320 can operate up to 33 MHz.
The device includes two full‑duplex hardware serial ports.
They are offered in 40‑pin DIP, 44‑pin PLCC, and 44‑pin TQFP packages.