Datasheet > DS87C520_1

DS87C520_1

更新时间： 2024-12-01 04:15:19

品牌	Logo	应用领域
达拉斯 - DALLAS		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
42页	1809K
描述
EPROM/ROM High-Speed Micro

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中文翻译

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数据手册

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DS87C520_1 数据手册

PRELIMINARY

DS87C520/DS83C520

EPROM/ROM High-Speed Micro

www.maxim-ic.com

FEATURES

§ 80C52-compatible

PACKAGE OUTLINE

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 total interrupt sources with 6 external

§ Available in 40-pin PDIP, 44-pin PLCC,

44-pin TQFP, and 40-pin windowed CERDIP

Factory Mask DS83C520 or EPROM (OTP)

DS87C520

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: http://www.maxim-ic.com/errata.

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DS87C520+ENL	MAXIM	获取价格	Microcontroller, 8-Bit, UVPROM, 8051 CPU, 33MHz, CMOS, PQFP44,
DS87C520+MCL	MAXIM	获取价格	Microcontroller, 8-Bit, UVPROM, 8051 CPU, 33MHz, CMOS, PDIP40,
DS87C520+QCL	MAXIM	获取价格	Microcontroller, 8-Bit, UVPROM, 8051 CPU, 33MHz, CMOS, PQCC44
DS87C520+QNL	MAXIM	获取价格	Microcontroller, 8-Bit, UVPROM, 8051 CPU, 33MHz, CMOS, PQCC44,
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