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DS89C420, DS89C420-ECL, DS89C420-ENG

Table of contents:
Info of DS89C420
Info of DS89C420-ECL
Info of DS89C420-ENG

DS89C420, DS89C420-ECL, DS89C420-ENG Selling Leads, Datasheet

MFG:Maxim Integrated Products Category:Integrated Circuits (ICs) Package Cooled:00+ D/C:PLCC44

DS89C420, DS89C420-ECL, DS89C420-ENG Datasheet download

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Part Number: DS89C420-ECL

Category: Integrated Circuits (ICs)

MFG: Maxim Integrated Products

Package Cooled: 00+

D/C: PLCC44

Description: IC MCU ULTRA 25MHZ HP 44-TQFP

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DS89C420 General Description

The DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typical applications see a speed improvement of 10 times using the same code and crystal. The DS89C420 offers a maximum crystal speed of 33MHz, achieving execution rates up to 33 million instructions per second (MIPS).

The DS89C430 ultra-high-speed flash microcontroller is an improved version of the DS89C420. The device offers more features, such as in-application programming, for approximately the same price. Engineers interested in the DS89C420 are encouraged to compare both devices when selecting an ultra-high-speed flash microcontroller.

DS89C420 Maximum Ratings

Voltage Range on Any Pin Relative to Ground. -0.3V to (V_CC + 0.5V)
Voltage Range on V_CC Relative to Ground...... -0.3V to +6.0V
Operating Temperature Range............ -40 to +85
Storage Temperature Range ............-55 to +125
Soldering Temperature... See IPC/JEDEC J-STD-020 Specification
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect device reliability

DS89C420 Features

·80C52 Compatible 8051 Pin- and Instruction-Set Compatible Four Bidirectional I/O Ports Three 16-Bit Timer Counters 256 Bytes Scratchpad RAM
·On-Chip Memory 16kB Flash Memory In-System Programmable through Serial Port 1kB SRAM for MOVX
·ROMSIZE Feature Selects Internal Program Memory Size from 0 to 16k Allows Access to Entire External Memory Map Dynamically Adjustable by Software
· High-Speed Architecture 1 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 Auto Increment/Decrement and Toggle Select Supports Four Paged Modes
·Power Management Mode Programmable Clock Divider Automatic Hardware and Software Exit
· 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

DS89C420 Connection Diagram

DS89C420-ECL Parameters

Technical/Catalog Information	DS89C420-ECL
Vendor	Maxim Integrated Products
Category	Integrated Circuits (ICs)
Program Memory Size	16K x 8
RAM Size	1K x 8
Number of I /O	32
Package / Case	44-TQFP
Speed	33MHz
Controller Series	89C
Oscillator Type	External
Packaging	Tray
Program Memory Type	FLASH
EEPROM Size	-
Core Processor	8051
Data Converters	-
Core Size	8-Bit
Operating Temperature	0°C ~ 70°C
Connectivity	SIO, UART/USART
Peripherals	Power-Fail Reset, WDT
Voltage - Supply (Vcc/Vdd)	4.5 V ~ 5.5 V
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	DS89C420 ECL DS89C420ECL

DS89C420-ENG Parameters

Technical/Catalog Information	DS89C420-ENG
Vendor	Maxim Integrated Products
Category	Integrated Circuits (ICs)
Program Memory Size	16K x 8
RAM Size	1K x 8
Number of I /O	32
Package / Case	44-TQFP
Speed	25MHz
Controller Series	89C
Oscillator Type	External
Packaging	Tray
Program Memory Type	FLASH
EEPROM Size	-
Core Processor	8051
Data Converters	-
Core Size	8-Bit
Operating Temperature	-40°C ~ 85°C
Connectivity	SIO, UART/USART
Peripherals	Power-Fail Reset, WDT
Voltage - Supply (Vcc/Vdd)	4.5 V ~ 5.5 V
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	DS89C420 ENG DS89C420ENG

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