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CY14V256LA-BA35XIT Datasheet(PDF) 2 Page - Cypress Semiconductor

Part # CY14V256LA-BA35XIT
Description  256-Kbit (32 K x 8) nvSRAM
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY14V256LA-BA35XIT Datasheet(HTML) 2 Page - Cypress Semiconductor

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CY14V256LA
Document Number: 001-76295 Rev. *B
Page 2 of 22
Contents
Pinout ................................................................................ 3
Pin Definitions .................................................................. 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
Maximum Ratings ............................................................. 7
Operating Range ............................................................... 7
DC Electrical Characteristics .......................................... 7
Data Retention and Endurance ....................................... 8
Capacitance ...................................................................... 8
Thermal Resistance .......................................................... 8
AC Test Loads .................................................................. 9
AC Test Conditions .......................................................... 9
AC Switching Characteristics ....................................... 10
SRAM Read Cycle .................................................... 10
SRAM Write Cycle ..................................................... 10
Switching Waveforms .................................................... 11
AutoStore/Power-up RECALL ....................................... 13
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
Ordering Information ...................................................... 18
Ordering Code Definitions ......................................... 18
Package Diagrams .......................................................... 19
Acronyms ........................................................................ 20
Document Conventions ................................................. 20
Units of Measure ....................................................... 20
Document History Page ................................................. 21
Sales, Solutions, and Legal Information ...................... 22
Worldwide Sales and Design Support ....................... 22
Products .................................................................... 22
PSoC Solutions ......................................................... 22


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