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
Key Specifications
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.
