DS89C440
Ultra-High-Speed Flash Microcontrollers
Ultra-High-Speed Flash Microcontrollers Offer In-Application Programmable Flash Memory
Part Details
- 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/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
The DS89C430 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 DS89C440 is a 32kB version of the DS89C450 that is no longer available. The DS89C450 can be used as a drop-in replacement.
Applications
- Automated Test Equipment (ATE)
- Building Energy Control and Management
- Building Security and Door Access Control
- Consumer Electronics
- Data Logging
- Gaming Equipment
- HVAC
- Industrial Control and Automation
- Magstripe Reader/Scanner
- Motor Control
- Programmable Logic Controllers
- Telephones
- Uninterruptible Power Supplies
- Vending
- White Goods (Washers, Microwaves, Etc.)
Documentation
Data Sheet 1
Reliability Data 1
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Microcontrollers 5 | ||
| DS89C430 | PRODUCTION | Ultra-High-Speed Flash Microcontrollers |
| DS87C520 | PRODUCTION | EPROM/ROM High-Speed Microcontrollers |
| DS80C320 | PRODUCTION | High-Speed/Low-Power Microcontrollers |
| DS80C323 | PRODUCTION | High-Speed/Low-Power Microcontrollers |
| DS80C310 | PRODUCTION | High-Speed Microcontroller |
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