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DS89C440 - Ultra-High-Speed Flash Microcontrollers

Download the DS89C440 datasheet PDF. This datasheet also covers the DS8 variant, as both devices belong to the same ultra-high-speed flash microcontrollers family and are provided as variant models within a single manufacturer datasheet.

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.

Key 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-.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (DS8-9C4.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number DS89C440
Manufacturer Dallas Semiconducotr
File Size Direct Link
Description Ultra-High-Speed Flash Microcontrollers
Datasheet download datasheet DS89C440 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.