FM25V02A

Document Number: 001-90865 Rev. *F

Page 2 of 23

Contents

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

Pin Definitions .................................................................. 3

Functional 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 ..................................... 7

WRSR - Write Status Register .................................... 7

Memory Operation ............................................................ 8

Write Operation ........................................................... 8

Read Operation ........................................................... 8

Fast Read Operation ................................................... 8

HOLD Pin Operation ................................................. 10

Sleep Mode ............................................................... 10

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