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DS1642 - Nonvolatile Timekeeping RAM

DS1642 Description

19-5266; Rev 5/10 DS1642 Nonvolatile Timekeeping RAM www.maxim-ic.com .
PIN NAME FUNCTION 1 A7 2 A6 3 A5 4 A4 5 A3 6 A2 Address Input 7 A1 8 A0 19 A10 22 A9 23 A8 9 DQ0 10 DQ1 11 DQ2 13 14 DQ3 DQ4 Data I.

DS1642 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

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Nonvolatile Timekeeping RAM Maxim Integrated
Maxim Integrated DS1642-like datasheet