Maxim > Products > Microcontrollers > DS80C320, DS80C323

DS80C320, DS80C323

High-Speed/Low-Power Microcontrollers

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
DS80C320	Active: In Production. See Ordering Information for details.
DS80C323	Active: In Production.

Description

The DS80C320/DS80C323 are fast 80C31/80C32-compatible microcontrollers. Wasted clock and memory cycles have been removed using a redesigned processor core. As a result, every 8051 instruction is executed between 1.5 and 3 times faster than the original for the same crystal speed. Typical applications see a speed improvement of 2.5 times using the same code and same crystal. The DS80C320 offers a maximum crystal rate of 33MHz, resulting in apparent execution speeds of 82.5MHz (approximately 2.5X).

The DS80C320/DS80C323 are pin compatible with all three packages of the standard 80C32 and offer the same timer/counters, serial port, and I/O ports. In short, the devices are extremely familiar to 8051users, but provide the speed of a 16-bit processor.

The DS80C320 provides several extras in addition to greater speed. These include a second full hardware serial port, seven additional interrupts, programmable watchdog timer, power-fail interrupt and reset. The device also provides dual data pointers (DPTRs) to speed block data memory moves. It can also adjust the speed of off-chip data memory access to between two and nine machine cycles for flexibility in selecting memory and peripherals.

The DS80C320 operating voltage ranges from 4.25V to 5.5V, making it ideal as a high-performance upgrade to existing 5V systems. For applications in which power consumption is critical, the DS80C323 offers the same feature set as the DS80C320, but with 2.7V to 5.5V operation.

Designers must have two documents to fully use all the features of this device: this data sheet and the High-Speed Microcontroller User's Guide, available on our website at www.maxim-ic.com/microcontrollers. Data sheets contain pin descriptions, feature overviews, and electrical specifications, whereas our user's guides contain detailed information about device features and operation.

Data Sheet

Download	Rev 4	(PDF, 700kB)
E-Mail

Errata DS80C320 80C320A6.pdf
Errata DS80C320 80C320B3.pdf
Errata DS80C320 80C320B5.pdf
Errata DS80C320 80C320C4.pdf
Errata DS80C320 80C320C5.pdf
Errata DS80C323 80C323B5.pdf
Errata DS80C323 80C323C4.pdf
Errata DS80C323 80C323C5.pdf
Errata DS80C323 80C323B3.pdf
Errata DS80C320 80C320C6.pdf
Errata DS80C320 80C320C7.pdf
Errata DS80C323 80C323C6.pdf
Errata DS80C323 80C323C7.pdf

Key Features

80C32-Compatible
- 8051 Pin and Instruction Set Compatible
- Four 8-Bit I/O Ports
- Three 16-Bit Timer/Counters
- 256 Bytes Scratchpad RAM
- Addresses 64kB ROM and 64kB RAM
High-Speed Architecture:
- 4 Clocks/Machine Cycle (8032 = 12)
- DC to 33MHz (DS80C320)
- DC to 18MHz (DS80C323)
- Single-Cycle Instruction in 121ns
- Uses Less Power for Equivalent Work
- Dual Data Pointer
- Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals
High-Integration Controller Includes:
- Power-Fail Reset
- Programmable Watchdog Timer
- Early Warning Power-Fail Interrupt
Two Full-Duplex Hardware Serial Ports
13 Total Interrupt Sources with Six External
Available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP

Key Specifications:

Microcontrollers

Part Number

MCU Core

Core Clock Speed
(MHz)

Data Processing

USARTs

Timer Features

Budgetary Price

max

See Notes

DS80C320

8051 (CISC)

8-bit

Watchdog

$6.49 @1k

DS80C323

$3.14 @1k

See All Microcontrollers (38)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Block Diagram

Application Notes

Application Note 56		The DS80C320 as a Drop-In Replacement for the 8051/8032 Microcontroller
Application Note 57		DS80C320 Memory Interface Timing
Application Note 75		Using the High-Speed Micro's Serial Ports
Application Note 81		Memory Expansion with the High-Speed Microcontroller Family
Application Note 89		High-Speed Micro Memory Interface Timing
Application Note 91		Microcontroller Design Guidelines for Reducing ALE Signal Noise
Application Note 137		Using a EconOscillator™ to Clock an 8051 Microprocessor
Application Note 202		NV SRAM Frequently Asked Questions
Application Note 548		Using the High-Speed Micro's Watchdog Timer
Application Note 595		8051 Microcontrollers: Frequently Asked Questions
Application Note 603		Implementing a Serial Port FIFO Using Dual Data Pointers
Application Note 610		Replacing an Atmel TS80C51U2 with a DS80C320/323 Microcontroller
Application Note 1087		Micro Tutorial 1: Understanding DC Electrical Characteristics of Microcontrollers
Application Note 1771		Microcontrollers Improve Power Efficiency of 8051-Based Designs
Application Note 2035		The Fast 8051 Microcontroller: Leading the Way in Growth and Innovation
Application Note 3421		Interfacing 8051-based Microcontrollers to an SCI Port
Application Note 3550		Using the IAR compiler for the DS80C400
Application Note 4199		Porting Applications from the High-Speed Micro Family to Ultra-High-Speed Flash Microcontrollers
Application Note 4427		Demonstrating Green Technology with Apples, Oranges, Lemons, and Limes
User Guide 4827		High-Speed Microcontroller User's Guide

Reliability Reports

Reliability Report:

DS80C320.pdf DS80C323.pdf

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS80C320-ECG				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-ECG+				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-ECG/T&R			N/A	No Longer Available	DS80C320-ECG+	TQFP; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS80C320-ECL				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-ECL+				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-ENG				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-ENG+				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-ENL				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-ENL+				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-FCG				Active		MQFP;44 pin;204.5 mm² Outline Drawing:21-0269 (PDF) Land Pattern: 90-0260 (PDF) Use pkgcode/variation: M44-11*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS80C320-FCG+				Active		MQFP;44 pin;204.5 mm² Outline Drawing:21-0269 (PDF) Land Pattern: 90-0260 (PDF) Use pkgcode/variation: M44+11*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-FNG				Active		MQFP;44 pin;204.5 mm² Outline Drawing:21-0269 (PDF) Land Pattern: 90-0260 (PDF) Use pkgcode/variation: M44-11*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-FNG+				Active		MQFP;44 pin;204.5 mm² Outline Drawing:21-0826 (PDF) Land Pattern: 90-0169 (PDF) Use pkgcode/variation: M44+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-MCG				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-MCG+				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-MCL				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-MCL+				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-MNG				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-MNG+				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-MNL				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS80C320-MNL+				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-QCG	25MHz			Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-QCG+				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-QCL				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-QCL+				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-QNG				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-QNG+				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C320-QNL				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C320-QNL+				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-ECD	18MHz			Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS80C323-ECD+				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-ECD+T&R				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-END				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS80C323-END+				Active		TQFP;44 pin;148.8 mm² Outline Drawing:21-0293 (PDF) Land Pattern: 90-0316 (PDF) Use pkgcode/variation: C44+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-MCD	18MHz			Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C323-MCD+				Active		PDIP(W);40 pin;835.7 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-QCD	18MHz			Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS80C323-QCD+				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-QND+				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS80C323-QND+T&R				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS80C323-QND/T&R				Active		PLCC;44 pin;311.5 mm² Outline Drawing:21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Similar Products by Function

See All Microcontrollers (39 Products)

Similar Products by Application

Broadcast TV and Radio > High-Speed Microcontrollers

Cable Modems and CATV > High-Speed Microcontrollers

GPS Solutions > High-Speed Microcontrollers

HVAC > Microprocessor

Products with Similar Part Numbers

DS80C310	High-Speed Microcontroller
DS80C410, DS80C411	Network Microcontrollers with Ethernet and CAN
DS80C390	Dual CAN High-Speed Microprocessor
DS80C400-KIT	DS80C400 Evaluation Kit
DS80C400	Network Microcontroller

More Information

High-Speed Microcontroller User's Guide (PDF)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Errata Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 4; 2006-10-11
This page last modified: 2009-05-06