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AN320 - Migrating from FM25256B to FM25W256 | Cypress Semiconductor

AN320 - Migrating from FM25256B to FM25W256

Last Updated: 
Aug 25, 2015
Version: 
*B

AN320 discusses the key differences that need to be considered when migrating from FM25256B to FM25W256. FM25256B is now obsolete and this application note explains how FM25W256 is a replacement for FM25256B.

Introduction

FM25W256, a 256-Kbit SPI F-RAM™, is a replacement device for FM25256B, which is now obsolete. The two devices are identical in terms of pinout, package composition and dimensions, read/write functionality, Write Protect operation, and address pin functionality. This application note discusses the key differences between the two devices that need to be considered when migrating from FM25256B to FM25W256.

Dear valued customer,

Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you. 

Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.

For the full version of this message, please download the PDF version.