Document Number: 001-06422 Rev. *I Page 2 of 19
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
AutoStore Operation ..........................................................4
Hardware STORE (HSB) Operation ...................................4
Hardware RECALL (Power Up) ..........................................5
Software STORE .................................................................5
Software RECALL ...............................................................5
Data Protection ...................................................................5
Noise Considerations .........................................................5
Low Average Active Power ................................................5
Preventing Store .................................................................6
Best Practices .....................................................................6
Maximum Ratings ...............................................................8
Operating Range .................................................................8
DC Electrical Characteristics ............................................8
Data Retention and Endurance .........................................8
Capacitance ........................................................................9
Thermal Resistance ............................................................9
AC Test Conditions ............................................................9
SRAM Read Cycle ......................................................10
SRAM Write Cycle .......................................................11
AutoStore or Power Up RECALL ....................................12
Software Controlled STORE/RECALL Cycle ..................13
Switching Waveforms ......................................................14
Part Numbering Nomenclature ........................................15
Ordering Information ........................................................15
Sales, Solutions, and Legal Information ........................19
Worldwide Sales and Design Support .........................19
Products ......................................................................19
Not Recommended for New Designs
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