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FM25V40 Scheda tecnica(PDF) 2 Page - Cypress Semiconductor

Il numero della parte FM25V40
Spiegazioni elettronici  4-Mbit (512 K 횞 8) Serial (SPI) F-RAM
Download  23 Pages
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Produttore elettronici  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

FM25V40 Scheda tecnica(HTML) 2 Page - Cypress Semiconductor

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PRELIMINARY
FM25V40
Document Number: 001-87288 Rev. *A
Page 2 of 23
Contents
Pinouts .............................................................................. 3
Pin Definitions .................................................................. 3
Overview............................................................................ 4
Memory Architecture........................................................ 4
Serial Peripheral Interface – SPI Bus.............................. 4
SPI Overview............................................................... 4
SPI Modes................................................................... 5
Power Up to First Access ............................................ 6
Command Structure .................................................... 6
WREN - Set Write Enable Latch ................................. 6
WRDI - Reset Write Enable Latch............................... 6
Status Register and Write Protection ............................. 7
RDSR - Read Status Register..................................... 8
WRSR - Write Status Register .................................... 8
Memory Operation............................................................ 8
Write Operation ........................................................... 8
Read Operation ........................................................... 9
Fast Read Operation ................................................... 9
HOLD Pin Operation ................................................. 10
Sleep Mode ............................................................... 11
Device ID................................................................... 11
Endurance ................................................................. 12
Maximum Ratings........................................................... 13
Operating Range............................................................. 13
DC Electrical Characteristics ........................................ 13
Data Retention and Endurance ..................................... 14
Capacitance .................................................................... 14
Thermal Resistance........................................................ 14
AC Test Conditions ........................................................ 14
AC Switching Characteristics ....................................... 15
Power Cycle Timing ....................................................... 17
Ordering Information...................................................... 18
Ordering Code Definitions ......................................... 18
Package Diagrams.......................................................... 19
Acronyms ........................................................................ 21
Document Conventions ................................................. 21
Units of Measure ....................................................... 21
Document History Page ................................................. 22
Sales, Solutions, and Legal Information ...................... 23
Worldwide Sales and Design Support....................... 23
Products .................................................................... 23
PSoC® Solutions ...................................................... 23
Cypress Developer Community................................. 23
Technical Support ..................................................... 23


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