DS89C430_07 Datasheet, PDF (1/46 Pages) Dallas Semiconductor – Ultra-High-Speed Flash Microcontrollers

DS89C430/DS89C450
Ultra-High-Speed Flash Microcontrollers
www.maxim-ic.com
GENERAL DESCRIPTION
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.
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.
ORDERING INFORMATION
PART
DS89C430-MNL
DS89C430-MNL+
DS89C430-QNL
DS89C430-QNL+
DS89C430-ENL
DS89C430-ENL+
DS89C440-xxx
DS89C450-MNL
DS89C450-MNL+
DS89C450-QNL
DS89C450-QNL+
DS89C450-ENL
DS89C450-ENL+
FLASH
MEMORY SIZE
PIN-PACKAGE
16kB
40 PDIP
16kB
40 PDIP
16kB
44 PLCC
16kB
44 PLCC
16kB
44 TQFP
16kB
44 TQFP
Contact factory or replace with
DS89C430 or DS89C450.
64kB
40 PDIP
64kB
40 PDIP
64kB
44 PLCC
64kB
44 PLCC
64kB
44 TQFP
64kB
44 TQFP
+ Denotes a lead(Pb)-free/RoHS-compliant device.
Complete Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
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/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
Telephones
White Goods
HVAC
Motor Control
Vending
Magstripe
Gaming
Reader/Scanner Equipment
Building Energy
Control and
Management
Programmable
Logic Controllers
Uninterruptible
Power Supplies
Automotive Text Industrial Control
Equipment
and Automation
Building Security Consumer
and Door Access Electronics
Control
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
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