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DS83C520-QCL规格书详情
DESCRIPTION
The DS87C520/DS83C520 EPROM/ROM high-speed microcontrollers are fast 8051-compatible microcontrollers. They feature a redesigned processor core without wasted clock and memory cycles. As a result, the devices execute every 8051 instruction between 1.5 and 3 times faster than the original for the same crystal speed. Typical applications will see a speed improvement of 2.5 times using the same code and the same crystal. The DS87C520/DS83C520 offer a maximum crystal speed of 33MHz, resulting in apparent execution speeds of 82.5MHz (approximately 2.5X).
FEATURES
■ 80C52 Compatible
8051 Pin- and Instruction-Set Compatible
Four 8-Bit I/O Ports
Three 16-Bit Timer/Counters
256 Bytes Scratchpad RAM
■ Large On-Chip Memory
16kB Program Memory
1kB Extra On-Chip SRAM for MOVX
■ ROMSIZE Feature
Selects Internal ROM Size from 0 to 16kB
Allows Access to Entire External Memory Map
Dynamically Adjustable by Software
Useful as Boot Block for External Flash
■ High-Speed Architecture
4 Clocks/Machine Cycle (8051 = 12)
Runs DC to 33MHz Clock Rates
Single-Cycle Instruction in 121ns
Dual Data Pointer
Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals
■ Power Management Mode
Programmable Clock Source to Save Power
CPU Runs from (crystal/64) or (crystal/1024)
Provides Automatic Hardware and Software Exit
■ EMI Reduction Mode Disables ALE
■ Two Full-Duplex Hardware Serial Ports
■ High Integration Controller Includes:
Power-Fail Reset
Early-Warning Power-Fail Interrupt
Programmable Watchdog Timer
■ 13 Interrupt Sources with Six External
■ Available in 40-pin PDIP, 44-Pin PLCC, 44-Pin TQFP, and 40-Pin Windowed CERDIP
■ Factory Mask DS83C520 or EPROM (OTP) DS87C520
产品属性
- 型号:
DS83C520-QCL
- 制造商:
DALLAS
- 制造商全称:
Dallas Semiconductor
- 功能描述:
EPROM/ROM High-Speed Micro
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST原装现货! |
新批次 |
N/A |
4326 |
询价 | |||
NSC |
23+ |
SOP-8 |
9823 |
询价 | |||
DALLAS |
23+ |
PLCC-44 |
6500 |
专注配单,只做原装进口现货 |
询价 | ||
DALLAS |
23+ |
PLCC-44 |
6500 |
专注配单,只做原装进口现货 |
询价 | ||
ST |
2021+ |
QFP |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
MAXIM/美信 |
23+ |
BGA |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
询价 | ||
DALLAS |
23+ |
PLCC |
8000 |
全新原装现货,欢迎来电咨询 |
询价 | ||
MAXIM |
13 |
DIP |
6000 |
绝对原装自己现货 |
询价 | ||
SOP |
2000 |
询价 | |||||
ST/意法 |
21+ |
QFP |
8000 |
原装正品 |
询价 |