Unlock Microcomputer IC Dallas Semiconductor DS89C450

We can unlock Dallas Semiconductor DS89C450 Ultra-High-Speed Flash Microcompter IC, please view the chip features for your reference:

 

FEATURES

§ 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

 

a maximum 33MHz clock rate.

The Ultra-High-Speed Flash Microcontroller User’s Guide should

be used in conjunction with this data sheet. Download it at

\

On-Chip Memory

16kB/32kB/64kB Flash Memory

In-Application Programmable

In-System Programmable Through Serial Port

 

ORDERING INFORMATION

FLASH

MEMORY SIZE

DS89C430-MNL       16kB

DS89C430-MNL+      16kB

DS89C430-QNL       16kB

DS89C430-QNL+      16kB

DS89C430-ENL       16kB


PIN-PACKAGE

40 PDIP

40 PDIP

44 PLCC

44 PLCC

44 TQFP


§

§


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

 

DS89C430-ENL+

DS89C440-MNL

DS89C440-MNL+

DS89C440-QNL

DS89C440-QNL+

DS89C440-ENL

DS89C440-ENL


16kB

32kB

32kB

32kB

32kB

32kB

32kB


44 TQFP

40 PDIP

40 PDIP

44 PLCC

44 PLCC

44 TQFP

44 TQFP


§


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

 

DS89C450-MNL       64kB

DS89C450-MNL+      64kB

DS89C450-QNL       64kB

DS89C450-QNL+      64kB

DS89C450-ENL       64kB

DS89C450-ENL+       64kB

+ Denotes a lead-free/RoHS-compliant device.


40 PDIP

40 PDIP

44 PLCC

44 PLCC

44 TQFP

44 TQFP


§


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

 

Complete Selector Guide appears at end of data sheet.

Pin Configurations appear at end of data sheet.

APPLICATIONS

 

Electromagnetic Interference (EMI) Reduction

 


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