CY14B256L-ZS25XI 查看數據表（PDF） - Cypress Semiconductor

零件编号

产品描述 (功能)

生产厂家

CY14B256L-ZS25XI

256-Kbit (32 K × 8) nvSRAM

Cypress Semiconductor 

CY14B256LA

Contents

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

Pin Definitions .................................................................. 4

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

Maximum Ratings ............................................................. 8

Operating Range ............................................................... 8

DC Electrical Characteristics .......................................... 8

Data Retention and Endurance ....................................... 9

Capacitance ...................................................................... 9

Thermal Resistance .......................................................... 9

AC Test Loads ................................................................ 10

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

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

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

AutoStore/Power-Up RECALL ....................................... 13

Switching Waveforms .................................................... 13

Software Controlled STORE/RECALL Cycle ................ 14

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

Hardware STORE Cycle ................................................. 15

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

Truth Table For SRAM Operations ................................ 16

Ordering Information ...................................................... 16

Ordering Code Definitions ......................................... 16

Package Diagrams .......................................................... 17

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

Document Number: 001-54707 Rev. *I

Page 2 of 22

Share Link: