AN319 - Migrating from FM25CL64 to FM25CL64B

AN319 discusses the key differences that need to be considered when migrating from FM25CL64 to FM25CL64B.
FM25CL64 is now obsolete and this application note explains how FM25CL64B is a replacement for FM25CL64.

Introduction

FM25CL64B, a 64-Kbit SPI F-RAM™, is a replacement device for FM25CL64, which is now obsolete. The two devices are identical in terms of pinout, packages, and read/write functionality. In terms of speed, both operate up to 20 MHz and have the same timing specifications. This application note discusses the key differences between the two devices that need to be considered when migrating from FM25CL64 to FM25CL64B.