AN109 - Migrating from FM20L08 to FM28V100

AN109 discusses the key differences that need to be considered when migrating from FM20L08 to FM28V100.FM20L08 is now obsolete and this application note explains how FM28V100 is a replacement for FM20L08.

Introduction

FM28V100, a 128-Kbit F-RAM™, is a replacement device for FM20L08, which is now obsolete. For most designs, the FM28V100 can be considered equivalent or better than the FM20L08. The two devices are identical in terms of package composition and dimensions, read / write functionality, and address pin functionality. The pinout is almost identical except for two pins. This application note discusses the key differences between the two devices that should be considered when migrating from FM20L08 to FM28V100.