This document points out the differences the FM24L256 and FM24V02 F-RAM devices. For most designs, the FM24V02 device can be considered a superset of the FM24L256. The two devices are identical in terms of pinout, package dimensions and composition, read/write functionality, WP pin operation, and address pin functionality. In terms of speed, both operate up to 1MHz and the FM24V02’s timing specs are tighter. The FM24V02 incorporates a new HS-mode that allows read/write operations up to 3.4MHz. It also adds a sleep mode feature which effectively lowers the standby/idle current to 8μA.
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