CY14E256LA-ZS25XI CYPRESS [Cypress Semiconductor], CY14E256LA-ZS25XI Datasheet - Page 2

• Manufacturer Part Number: CY14E256LA-ZS25XI
• Description: 256 Kbit (32K x 8) nvSRAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Contents
Features ...............................................................................1
Functional Description .......................................................1
Contents ..............................................................................2
Pinouts ................................................................................3
Device Operation ................................................................4
SRAM Read .........................................................................4
SRAM Write .........................................................................4
AutoStore Operation ..........................................................4
Hardware STORE Operation ..............................................4
Hardware RECALL (Power Up) ..........................................5
Software STORE .................................................................5
Software RECALL ...............................................................5
Preventing AutoStore .........................................................6
Data Protection ...................................................................6
Noise Considerations .........................................................6
Best Practices .....................................................................7
Maximum Ratings ...............................................................8
Operating Range .................................................................8
Document Number: 001-54952 Rev. *B
DC Electrical Characteristics ............................................ 8
AC Test Conditions ............................................................ 9
Data Retention and Endurance ......................................... 9
Capacitance ........................................................................ 9
Thermal Resistance ............................................................ 9
AC Switching Characteristics .........................................10
AutoStore/Power Up RECALL .........................................12
Software Controlled STORE/RECALL Cycle ..................13
Hardware STORE Cycle ...................................................14
Switching Waveforms ......................................................14
Truth Table For SRAM Operations ..................................15
Part Numbering Nomenclature ........................................15
Ordering Information ........................................................16
Package Diagram ..............................................................17
Document History Page ...................................................18
Sales, Solutions, and Legal Information ........................18
Worldwide Sales and Design Support .........................18
Products ......................................................................18
CY14E256LA
Page 2
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