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DS1643 Datasheet PDF

Part Series:DS1643 Series
Category:Real Time Clocks
Description:Real Time Clock (RTC) IC Clock/Calendar 8KB Parallel 28-DIP Module (0.600", 15.24mm)
Document:DS1643P-100+ Datasheet PDF (33 Pages)

DS1643 Real Time Clocks Datasheet PDF

DS1643 Datasheet PDF Real Time Clocks

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DS1643-100+ - Maxim Integrated Specifications

TYPE
DESCRIPTION
Mounting Style
Through Hole
Number of Pins
28 Pin
Supply Voltage (DC)
4.50V (max)
Case/Package
EDIP-28
Access Time
100 ns
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DS1643-100+ - Maxim Integrated Function Overview

Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit and Lithium Energy Source
Clock Registers are Accessed Identically to the Static RAM. These Registers Reside in the Eight Top RAM Locations
Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
Access Times of 85ns and 100ns
BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Leap Year Compensation Valid Up to 2100
Power-Fail Write Protection Allows for ±10% VCC Power Supply Tolerance
Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
DS1643 Only (DIP Module)
Standard JEDEC Byte-Wide 8K x 8 RAM Pinout
DS1643P Only (PowerCap Module Board)
Surface Mountable Package for Direct Connection to PowerCap Containing Battery and Crystal
Replaceable Battery (PowerCap)
Power-Fail Output
Pin-for-Pin Compatible with Other Densities of DS164XP Timekeeping RAM
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