4Kbit FRAM with 125°C automotive qualification
The Infineon FM25L04B-GATR is a 4Kbit non-volatile FRAM organized as 512 x 8 bits, accessed over an SPI interface at up to 10 MHz. FRAM writes at bus speed without the write-cycle delay of serial EEPROM, and endurance is effectively unlimited for logging applications — no wear-leveling or sector management is needed at the firmware layer.
Supply and interface fit
The SPI bus supports Mode 0 and Mode 3, with the chip-select pin gating the serial clock. Housed in the standard 8-pin SOIC (150-mil body), footprint-compatible with common serial EEPROMs and FRAMs in the same package — a direct layout swap for a 4Kbit SPI memory at 3.3 V.
Quantities are lot-specific and confirmed at RFQ.