Key facts
- Brand
- Maxim
- Model
- DS80C323
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-05-03
Start here
Maxim DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers Datasheet
The DS80C320 and DS80C323 are high‑speed, low‑power 80C32‑compatible microcontrollers offering up to 33 MHz (DS80C320) or 18 MHz (DS80C323) crystal rates. They retain full 8051 instruction compatibility while delivering 1.5‑3× faster execution, dual full‑duplex serial ports, additional interrupts, and programmable watchdog features.
These devices are available in 40‑pin DIP, 44‑pin PLCC, and 44‑pin TQFP packages, support operating voltages from 4.25 V to 5.5 V (DS80C320) or 2.7 V to 5.5 V (DS80C323), and provide 256 B of scratchpad RAM, 64 kB ROM, 64 kB RAM, three 16‑bit timers, and four 8‑bit I/O ports.
Maxim DS80C323 specifications
| Operating voltage (DS80C320) | 4.25 V to 5.5 V |
|---|---|
| Maximum crystal frequency (DS80C320) | 33 MHz |
| Package options | 40‑Pin DIP, 44‑Pin PLCC, 44‑Pin TQFP |
| I/O ports | Four 8‑bit ports |
| Timer/Counters | Three 16‑bit timer/counters |
| Scratchpad RAM | 256 Bytes |
| Memory address space | 64 kB ROM, 64 kB RAM |
| Serial ports | Two full‑duplex hardware serial ports |
| Interrupt sources | 13 total (6 external) |
Source: Maxim DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers Datasheet
All Maxim DS80C323 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range for the DS80C320?
The DS80C320 operates from 4.25 V up to 5.5 V.
From: Maxim DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers Datasheet
How many full‑duplex serial ports does the DS80C320/DS80C323 provide?
Both devices include two full‑duplex hardware serial ports.
From: Maxim DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers Datasheet
What is the operating voltage range for the DS80C320?
The DS80C320 operates from 4.25 V to 5.5 V.
What is the maximum crystal frequency supported?
The device supports a maximum crystal rate of 33 MHz.
What is the maximum clock speed for the DS80C320?
The DS80C320 can operate up to 33 MHz.
From: Maxim DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers Datasheet
How many hardware serial ports are provided?
The device includes two full‑duplex hardware serial ports.
From: Maxim DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers Datasheet