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DS1543

Part Number	DS1543
Manufacturer	Dallas Semiconducotr
Description	64k NV Timekeeping RAM
Published	Jun 7, 2016
Detailed Description	www.dalsemi.com FEATURES Integrated NV SRAM, real time clock, crystal, power-fail control circuit and lithium energy so...
Datasheet	DS1543 PDF File

Overview

www.
dalsemi.
com FEATURES Integrated NV SRAM, real time clock, crystal, power-fail control circuit and lithium energy source Clock registers are accessed identical to the static RAM.
These registers are resident in the sixteen top RAM locations Totally nonvolatile with over 10 years of operation in the absence of power Precision Power-On Reset Programmable Watchdog Timer and RTC Alarm BCD coded year, month, date, day, hours, minutes, and seconds with automatic leap year compensation valid up to the year 2100 Battery voltage level indicator flag Power-fail write protection allows for ±10% Vcc power supply tolerance Lithium energy source is electrically disconnected to retain freshness until p...

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