Document Number: 001-50638 Rev. *A Page 2 of 17
Contents
Features................................................................................ 1
Functional Description........................................................ 1
Logic Block Diagram........................................................... 1
Contents............................................................................... 2
Pin Configurations .............................................................. 3
Pin Definitions ..................................................................... 3
Device Operation................................................................. 4
SRAM Read .......................................................................... 4
SRAM Write.......................................................................... 4
Software STORE.................................................................. 4
Software RECALL................................................................ 4
Hardware RECALL (Power Up)........................................... 4
Hardware Protect .................................................................4
Noise Considerations.......................................................... 4
Low Average Active Power................................................. 4
Best Practices...................................................................... 5
Maximum Ratings................................................................ 6
Operating Range.................................................................. 6
DC Electrical Characteristics ............................................. 6
Data Retention and Endurance .......................................... 6
Capacitance ......................................................................... 7
Thermal Resistance............................................................. 7
AC Test Conditions ............................................................. 7
AC Switching Characteristics ............................................ 8
SRAM Read Cycle ......................................................... 8
SRAM Write Cycle.......................................................... 9
AutoStore INHIBIT or Power Up RECALL ....................... 10
Software Controlled STORE/RECALL Cycle................... 11
Part Numbering Nomenclature......................................... 12
Ordering Information......................................................... 12
Package Diagrams..............................................................14
Document History Page.................................................... 17
Sales, Solutions, and Legal Information ......................... 17
Worldwide Sales and Design Support.......................... 17
Products ....................................................................... 17
Not recommended for new designs.
In production to support ongoing production programs only.
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