Product Overview
The FM25L04B-GTR from Infineon (formerly Cypress/Ramtron) is a 4-Kbit (512×8) serial F-RAM nonvolatile memory with 100 trillion read/write cycles, NoDelay writes, and 151-year data retention in an SOIC-8 package. Operating from 2.7V to 3.6V with SPI interface up to 20MHz, it is a direct EEPROM replacement.
Key Specifications
| Density | 4 Kbit (512 x 8) |
| Interface | SPI (Mode 0 and 3) |
| Max Clock Frequency | 20 MHz |
| Write Endurance | 100 trillion (10^14) cycles |
| Data Retention | 151 years @ 65C |
| Write Time | Instant (NoDelay) |
| Supply Voltage | 2.7V to 3.6V |
| Active Current | 200 uA @ 1MHz |
| Standby Current | 3 uA (typ) |
| Operating Temperature | -40 to +85 C |
| Package | SOIC-8 |
Features
- 4-Kbit F-RAM (512 x 8 bits)
- 100 trillion (10^14) read/write cycles
- 151-year data retention at 65C
- NoDelay writes at bus speed
- SPI up to 20MHz (Mode 0 and 3)
- Hardware and software write protection
- Direct EEPROM replacement
- Ultra-low power: 200uA active, 3uA standby
Applications
- Industrial data logging
- EV charging stations
- Meter calibration storage
- Frequent-write embedded systems