IFXFM25L04B-GTR

Overview

The FM25L04B-GTR is a 4Kbit non-volatile memory using Ferroelectric RAM (FRAM) technology, which allows for write operations at full bus speed without the write delays common in EEPROM or Flash. It operates over a 2.7V to 3.6V supply range and features an SPI interface capable of frequencies up to 20 MHz. The device is organized as 512 x 8 bits and provides extreme endurance for data-intensive logging applications.

Why Choose This Part

This FRAM IC offers 100 trillion read/write cycles and 151-year data retention, far exceeding the lifespan of standard Flash memory. It eliminates write-polling and internal delays, allowing the system to treat non-volatile storage with the speed of standard RAM while consuming only 0.2mA at 1MHz.

Applications

Getting Started

Engineers can interface this device using any standard SPI peripheral in Mode 0 or Mode 3. Since writes are performed at bus speed without 'write-in-progress' polling, existing EEPROM drivers may need to be simplified to remove unnecessary delay loops. Hardware write protection is available via the WP pin for securing sensitive data blocks.