The FM25512 is a 512‑Kb SPI serial EEPROM with 128‑bit UID, a 128‑byte security sector, low‑voltage operation and extensive write‑protection features.
The FM25512 SPI Serial EEPROM provides 512 Kb of non‑volatile memory organized as 65,536 bytes, each with a unique 128‑bit ID and a dedicated 128‑byte security sector. It is designed for industrial and commercial applications that require low power consumption and reliable data retention.
Key features include operation from 1.8 V to 5.5 V, up to 20 MHz SPI clock rates, 5 ms maximum write cycle time, 1 M write‑cycle endurance, 40‑year data retention, and hardware/software write protection. The device is offered in SOP8, TSSOP8 and TDFN8 packages.
| Memory size | 512 Kb (65,536 bytes) |
|---|---|
| Operating voltage | 1.8 V to 5.5 V |
| SPI clock rate | 20 MHz (4.5‑5.5 V) / 5 MHz (1.8 V) |
| Write cycle time | 5 ms max |
| Endurance | 1,000,000 write cycles |
| Data retention | 40 years |
| Operating temperature | -55 °C to +125 °C |
| Package options | SOP8, TSSOP8, TDFN8 |
The device operates from 1.8 V up to 5.5 V.
It is rated for up to one million write cycles.
The write cycle is self‑timed with a maximum of 5 ms.
The EEPROM is offered in SOP8, TSSOP8 and TDFN8 packages.