Part Number: DS89C450-ENL
Brand: MAXIM
Package: TQFP44
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
APP
Part Status | Active | |
---|---|---|
Core Processor | 8051 | |
Core Size | 8-Bit | |
Speed | 33MHz | |
Connectivity | EBI/EMI, SIO, UART/USART | |
Peripherals | Power-Fail Reset, WDT | |
Number of I/O | 32 | |
Program Memory Size | 64KB (64K x 8) | |
Program Memory Type | FLASH | |
EEPROM Size | - | |
RAM Size | 1K x 8 | |
Voltage - Supply (Vcc/Vdd) | 4.5 V ~ 5.5 V | |
Data Converters | - | |
Oscillator Type | External | |
Operating Temperature | -40°C ~ 85°C (TA) | |
Package / Case | 44-TQFP | |
Supplier Device Package | 44-TQFP (10x10) | |
Base Part Number | DS89C450 |
Contact Type
Skype ID: mjdccm
Email: Fanny.Young@szmjd.net
Trademanager: cn200873376
Website:
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