DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clocks
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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Revision History
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0 6/05 Initial release of combined data sheet —
1 4/06
Corrected the Intel Bus Write Timing, Intel Bus Read Timing,
IRQ
Release Delay
Timing, Power-Up/Down Timing, and Functional Diagram diagrams; added the
Handling, PC Board Layout, and Assembly section.
4, 5, 7, 20
2 5/06
Corrected the Intel Bus Write Timing diagram; added PLCC pin description
information; changed pin 16 from N.C. to GND for the SO and PDIP packages.
4, 8, 9, 10, 20
3 2/07
Corrected the Intel Bus Write Timing diagram; updated the Ordering Information;
added the Package Information table; removed the package drawings.
4, 20, 22–27
4 4/10
Updated the storage temperature ranges, added the lead temperature, and updated
the soldering temperature for all packages in the Absolute Maximum Ratings;
removed leaded parts from the Ordering Information table.
2, 21
