This data sheet provides specifications information about ds80c320/ds80c323 microcontrollers.
The DS80C320 and DS80C323 are high‑speed, low‑power 80C32‑compatible microcontrollers offering up to 33 MHz crystal operation, 256 bytes of scratchpad RAM, four 8‑bit I/O ports, three 16‑bit timer/counters, two full‑duplex serial ports and 13 interrupt sources. They are pin‑compatible with standard 80C32 packages and run on 4.25‑5.5 V (DS80C320) or 2.7‑5.5 V (DS80C323).
The datasheet includes detailed pin descriptions for DIP, PLCC and TQFP packages, ordering information with RoHS‑compliant part numbers, revision change summaries, and references to the accompanying High‑Speed Microcontroller User’s Guide for full functional details.
| Maximum crystal rate | 33 MHz |
|---|---|
| Operating voltage (DS80C320) | 4.25 V to 5.5 V |
| Operating voltage (DS80C323) | 2.7 V to 5.5 V |
| Scratchpad RAM | 256 bytes |
| Addressable memory | 64 kB ROM and 64 kB RAM |
| I/O ports | Four 8‑bit ports |
| Timer/Counters | Three 16‑bit |
| Serial ports | Two full‑duplex hardware ports |
| Interrupt sources | 13 total |
| Package options | 40‑Pin DIP, 44‑Pin PLCC, 44‑Pin TQFP |
The DS80C320 operates from 4.25 V to 5.5 V.
The device supports a maximum crystal rate of 33 MHz.
It provides four 8‑bit I/O ports.
They are offered in 40‑Pin DIP, 44‑Pin PLCC, and 44‑Pin TQFP packages.