QuickView - DS89C430, DS89C440, DS89C450 Ultra-High-Speed Flash Microcontrollers


Enter keywords or part number

What's New

Products

Solutions

Maxim > Products > [Microcontrollers]

DS89C430, DS89C440, DS89C450 Ultra-High-Speed Flash Microcontrollers

Ultra-High-Speed Flash Microcontrollers Offer In-Application Programmable Flash Memory

QuickView Technical Documents Ordering Info More Information User Comments (0) All

Status

Part Number Status Replacement Explanation

DS89C430 Active: In Production.

DS89C440 This product is No Longer Available. See Ordering Information for recommended replacements. DS89C450 The DS89C450 is pin and functionally compatible with the DS89C440. Designs using the DS89C440 should upgrade to the DS89C450. Software compatibility must be verified in the upgrade process. The DS89C440 has two 16KB banks of FLASH, while the DS89C450 has two 32KB banks of FLASH. If your application code is dependant on the bank size being 16KB, it will need to be modified to work on the DS89C450.

DS89C450 Active: In Production.

Description

FULL DATA SHEET (PDF, 312kB)

Download E-Mail

The DS89C430 and DS89C450 offer the highest performance available in 8051-compatible microcontrollers. They feature newly designed processor cores that execute instructions up to 12 times faster than the original 8051 at the same crystal speed. Typical applications will experience a speed improvement up to 10x. At 1 million instructions per second (MIPS) per megahertz, the microcontrollers achieve 33 MIPS performance from a maximum 33MHz clock rate.

The DS89C440 is a 32kB version of the DS89C450 that is no longer available. The DS89C450 can be used as a drop-in replacement.

An evaluation kit is available: DS89C450-K00

Key Features Applications/Uses

High-Speed 8051 Architecture

One Clock-Per-Machine Cycle
DC to 33MHz Operation
Single Cycle Instruction in 30ns
Optional Variable Length MOVX to Access Fast/Slow Peripherals
Dual Data Pointers with Automatic Increment/Decrement and Toggle Select
Supports Four Paged Memory-Access Modes

On-Chip Memory

16kB/64kB Flash Memory
In-Application Programmable
In-System Programmable Through Serial Port
1kB SRAM for MOVX

80C52 Compatible

8051 Pin and Instruction Set Compatible
Four Bidirectional, 8-Bit I/O Ports
Three 16-Bit Timer Counters
256 Bytes Scratchpad RAM

Power-Management Mode

Programmable Clock Divider
Automatic Hardware and Software Exit

ROMSIZE Feature

Selects Internal Program Memory Size from 0 to 64kB
Allows Access to Entire External Memory Map
Dynamically Adjustable by Software

Peripheral Features

Two Full-Duplex Serial Ports
Programmable Watchdog Timer
13 Interrupt Sources (Six External)
Five Levels of Interrupt Priority
Power-Fail Reset
Early Warning Power-Fail Interrupt
Electromagnetic Interference (EMI) Reduction

Automated Test Equipment (ATE)
Building Energy Control and Management
Building Security and Door Access Control
Consumer Electronics
Data Logging
Gaming Equipment
HVAC
Industrial Control and Automation
Magstripe Reader/Scanner
Motor Control
Programmable Logic Controllers
Telephones
Uninterruptible Power Supplies
Vending
White Goods (Washers, Microwaves, Etc.)