AN112 - Migrating from FM1808 to FM1808B

AN112 discusses the key differences that need to be considered when migrating from FM1808 to FM1808B. FM1808 is now obsolete and this application note explains how FM1808B is a replacement for FM1808.

Introduction

FM1808B, a 256-Kbit parallel F-RAM™, is a replacement device for FM1808, which is now obsolete. The two devices are identical in terms of package composition and dimensions, read / write functionality, and address pin functionality. This application note discusses the key differences between the two devices that need to be considered when migrating from FM1808 to FM1808B.