DS83C520

更新时间： 2024-11-24 12:56:31

品牌	Logo	应用领域
美信 - MAXIM		微控制器可编程只读存储器电动程控只读存储器
页数	文件大小	规格书
43页	715K
描述
EPROM/ROM High-Speed Microcontrollers

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DS83C520 数据手册

DS87C520/DS83C520

EPROM/ROM High-Speed Microcontrollers

www.maxim-ic.com

FEATURES

PIN CONFIGURATIONS

80C52 Compatible

TOP VIEW

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

The High-Speed Microcontroller User’s Guide must be used in

conjunction with this data sheet. Download it at:

www.maxim-ic.com/microcontrollers.

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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REV: 022207

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