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89C450

Dallas Semiconducotr
Part Number 89C450
Manufacturer Dallas Semiconducotr
Description DS89C450
Published Oct 10, 2007
Detailed Description www.DataSheet4U.com DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers www.maxim-ic.com GENERAL DESCRI...
Datasheet PDF File 89C450 PDF File

89C450
89C450

Overview
www.
DataSheet4U.
com DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers www.
maxim-ic.
com GENERAL DESCRIPTION The DS89C430, DS89C440, 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 Ultra-High-Speed Flash Microcontroller User’s Guide should be used in conjunction with this data sheet.
Download it at www.
maxim-ic.
com/microcontrollers.
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 On-Chip Memory 16kB/32kB/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 § APPLICATIONS Data Logging Automotive Test Equipment Magstripe Reader/Scanner Gaming Equipment HVAC Uninterruptible Power Supplies Building Energy Control and Management White Goods (Washers, Mic...


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