Industrial-grade 1024kBit SPI FRAM with 40MHz frequency, ensuring reliable performance in wide temperature range of -40°C to 85°C The FM25V10-G is a 1-Mbit (128K × 8) serial F-RAM memory with an SPI interface, providing nonvolatile storage with 100 trillion (10¹⁴) read/write cycles and 151-year data retention at 65°C. It operates from 2.0 V to 3.6 V, supports up to 40 MHz SPI clock, and features NoDelay™ writes for instant data storage.