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Dallas Semiconductor DS89C420

The Dallas Semiconductor DS89C420 is an 8051 based Ultra High-Speed Micro with 2 DPTRs, WDT, 2 Serial Ports, 32 I/O lines, 3 Timers/Counters, 13 Interrupts/3 Priority levels, 16K Bytes Flash, 256 Bytes On-chip RAM, 1K Bytes Additional XRAM. The DS89C420 has been obsoleted. For future designs select the DS89C430 (http://www.keil.com/dd/chip/3673.htm) which is a drop-in replacement that is feature compatible with the DS89C420.

*** EOL Notice ***
This device is no longer in production.

[Chip Vendor][Distributors]
Evaluation Software
Data Sheets
Data Sheet for the Dallas Semiconductor DS89C420
Data Sheet
688,632 bytes
High-Speed User's Guide for the Dallas Semiconductor DS89C420
High-Speed User's Guide
6,850,603 bytes

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Header Files
Example Code
Evaluation Boards
Emulators
FLASH Utilities
Device Programmers
Development Tools
Compiler, Assembler, Linker, Debugger
Simulated Features

The following on-chip peripherals are simulated by the Keil Software µVision Debugger.

The following on-chip peripherals are not simulated.

  • Flash
Real-Time OS
AGSI Drivers

The following AGSI Drivers are available for the Keil Software µVision Simulator.

AGDI Drivers

The following AGDI Drivers are available for the Keil Software µVision Debugger.

Consultants

The following consultants have experience with this device.

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