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See Technical Specifications

DS89C450-QNL+

8051 89C Microcontroller IC 8-Bit 33MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59)

Manufacturer:

MAXIM
Mfr.Part #:

DS89C450-QNL+
Datasheet:

DS89C450-QNL+ Datasheet (PDF)
Core:

8051
Program Memory Size:

64 kB
Data RAM Size:

1 kB
Maximum Clock Frequency:

33 MHz
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DS89C450-QNL+ 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, themicrocontrollers achieve 33 MIPS performance from a maximum 33MHz clock rate.

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/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

Application

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.)

Specifications

Product Category	8-bit Microcontrollers - MCU	Core	8051
Program Memory Size	64 kB	Data RAM Size	1 kB
Maximum Clock Frequency	33 MHz	ADC Resolution	No ADC
Number of I/Os	32 I/O	Supply Voltage - Min	4.5 V
Supply Voltage - Max	5.5 V	Mounting Style	SMD/SMT
Data Bus Width	8 bit	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C	Series	DS89C450
Data RAM Type	SRAM	Development Kit	DS89C450-KIT#
Height	3.68 mm	Interface Type	UART
Length	16.66 mm	Moisture Sensitive	Yes
Number of Timers/Counters	3 Timer	Processor Series	DS89C450
Product Type	8-bit Microcontrollers - MCU	Program Memory Type	Flash
Factory Pack Quantity	28	Subcategory	Microcontrollers - MCU
Width	16.66 mm	Part # Aliases	DS89C450 90-89450+QNL
Unit Weight	0.084185 oz