CY14B104LA-ZS45XI(2011) Ver la hoja de datos (PDF) - Cypress Semiconductor

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componentes Descripción

Fabricante

CY14B104LA-ZS45XI
(Rev.:2011)

4-Mbit (512 K × 8/256 K × 16) nvSRAM

Cypress Semiconductor 

CY14B104LA, CY14B104NA

Contents

Pinouts .............................................................................. 3

Device Operation .............................................................. 5

SRAM Read ....................................................................... 5

SRAM Write ....................................................................... 5

AutoStore Operation ........................................................ 5

Hardware STORE Operation............................................ 5

Hardware RECALL (Power-Up) ....................................... 6

Software STORE ............................................................... 6

Software RECALL............................................................. 6

Preventing AutoStore....................................................... 7

Data Protection ................................................................. 7

Noise Considerations....................................................... 7

Best Practices................................................................... 8

Maximum Ratings............................................................. 9

Operating Range............................................................... 9

DC Electrical Characteristics .......................................... 9

AC Test Conditions ........................................................ 10

Data Retention and Endurance ..................................... 10

Capacitance .................................................................... 10

Thermal Resistance........................................................ 10

AC Switching Characteristics ....................................... 11

Switching Waveforms .................................................... 11

AutoStore/Power-Up RECALL....................................... 14

Switching Waveforms .................................................... 14

Software Controlled STORE/RECALL Cycle................ 15

Switching Waveforms .................................................... 15

Hardware STORE Cycle ................................................. 16

Switching Waveforms .................................................... 16

Truth Table For SRAM Operations................................ 17

For ×8 Configuration ................................................. 17

For ×16 Configuration ............................................... 17

Ordering Information...................................................... 18

Package Diagrams.......................................................... 20

Acronyms ........................................................................ 22

Document Conventions ............................................. 22

Units of Measure ....................................................... 22

Document History Page ................................................. 23

Sales, Solutions, and Legal Information ...................... 24

Worldwide Sales and Design Support....................... 24

Products .................................................................... 24

PSoC Solutions ......................................................... 24

Document #: 001-49918 Rev. *H

Page 2 of 24

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