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DS1642

Maxim Integrated
Part Number DS1642
Manufacturer Maxim Integrated
Description Nonvolatile Timekeeping RAM
Published Mar 27, 2020
Detailed Description 19-5266; Rev 5/10 DS1642 Nonvolatile Timekeeping RAM www.maxim-ic.com FEATURES  Integrated NV SRAM, Real-Time Clock, ...
Datasheet PDF File DS1642 PDF File

DS1642
DS1642

Overview
19-5266; Rev 5/10 DS1642 Nonvolatile Timekeeping RAM www.
maxim-ic.
com FEATURES  Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit, and Lithium Energy Source  Standard JEDEC Bytewide 2k x 8 Static RAM Pinout  Clock Registers are Accessed Identically to the Static RAM.
These Registers are Resident 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  Quartz Accuracy ±1 Minute a Month at +25°C, Factory Calibrated  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 Sup...


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