DS87C530-ENL+ DALLAS [Dallas Semiconductor], DS87C530-ENL+ Datasheet

DS87C530-ENL+

Manufacturer Part Number

DS87C530-ENL+

Description

EPROM/ROM Microcontrollers with Real-Time Clock

Manufacturer

DALLAS [Dallas Semiconductor]

Datasheet

1.DS87C530-ENL.pdf (47 pages)

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FEATURES

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.

www.maxim-ic.com

80C52 Compatible

8051 Instruction-Set Compatible

Four 8-Bit I/O Ports

Three 16-Bit Timer/Counters

256 Bytes Scratchpad RAM

Large On-Chip Memory

16kB EPROM (OTP)

1kB Extra On-Chip SRAM for MOVX

ROMSIZE Features

Selects Effective On-Chip ROM Size from

Allows Access to Entire External Memory Map

Dynamically Adjustable by Software

Useful as Boot Block for External Flash

Nonvolatile Functions

On-Chip Real-Time Clock with Alarm Interrupt

Battery Backup Support of 1kB SRAM

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

Power Management Mode

Programmable Clock Source Saves Power

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

14 Total Interrupt Sources with Six External

0 to 16kB

Fast/Slow RAM /Peripherals

EPROM/ROM Microcontrollers with

1 of 47

PIN CONFIGURATIONS

The High-Speed Microcontroller User’s Guide must

be used in conjunction with this data sheet. Download it

at:

www.maxim-ic.com/microcontrollers

TOP VIEW

PLCC, WINDOWED CLCC

DS87C530/DS83C530

DS87C530

DS83C530

DS87C530

DS83C530

DALLAS

Real-Time Clock

TQFP

REV: 071107

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