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DS1689 Datasheet (DS1689 / DS1693) 3-Volt/5-Volt Serialized Real-Time Clock

Manufacturer: Dallas Semiconductor

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Datasheet Details

Part number DS1689
Manufacturer Dallas Semiconductor
File Size 375.24 KB
Description (DS1689 / DS1693) 3-Volt/5-Volt Serialized Real-Time Clock
Download DS1689 Download (PDF)

General Description

X1 X2 RCLR AD0-AD7 PWR KS CS ALE WR RD VCCO IRQ ORDERING INFORMATION PART # DS1689S DS1689SN DS1693 DESCRIPTION RTC IC, 28-pin SOIC RTC IC, 28-pin SOIC IND RTC Module;

28-pin DIP SQW VCCI GND VBAT VBAUX PSEL CEI CEO - Crystal Input - Crystal Output - RAM Clear Input - Mux’ed Address/Data Bus - Power-on Interrupt Output (Open drain) - Kickstart Input - RTC Chip Select Input - RTC Address Strobe - RTC Write Data Strobe - RTC Read Data Strobe - RAM Power

Overview

www.DataSheet4U.com DS1689/DS1693 3-Volt/5-Volt Serialized Real-Time Clock with NV RAM Control www.maxim-ic.

Key Features

  • Incorporates industry standard DS1287 PC clock plus enhanced features:.
  • +3- or +5V operation.
  • 64-bit silicon serial number.
  • 64-bit customer specific ROM or additional serial number available.
  • Power control circuitry supports system power-on from date/time alarm or key closure.
  • Automatic battery backup and write protection to external SRAM.
  • Crystal select bit allows RTC to operate with 6 pF or 12.5 pF crystal.
  • 114 bytes user NV RAM.
  • Auxiliary battery input.

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