Cypress Semiconductor Perform STK14D88 Manual do Utilizador descarregar pdf (Página 2)

CY14B256L

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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Cypress Semiconductor Perform STK14D88 Manual do Utilizador Página 2