Ramtron FM25256
The FM25256 is a 256-kilobit nonvolatile memory employing an advanced ferroelectric process. It provides reliable data retention for 10 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories. Unlike serial EEPROMs, the FM25256 performs write operations at bus speed.| Part No. | FM25256 |
|---|---|
| Datasheet | FM25256 Download |
| Manufacturer |  Ramtron |
| Description | 256Kb FRAM Serial 5V Memory |
| Buy | Stock & Price |
FEATURES
256K bit Ferroelectric Nonvolatile RAM● Organized as 32,768 x 8 bits
● Unlimited Read/Write Cycles
● 10 Year Data Retention
● NoDelay™ Writes
● Advanced High-Reliability Ferroelectric Process Very Fast Serial Peripheral Interface - SPI
● Up to 25 MHz Frequency
● Direct Hardware Replacement for EEPROM
● SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1) Write Protection Scheme
● Hardware Protection
● Software Protection Wide Operating Range
● Wide Voltage Operation 4.0V – 5.5V Industry Standard Configurations
● Industrial Temperature -40°C to +85°C
● 8-pin SOIC (-S)
● “Green” 8-pin SOIC (-G)
DESCRIPTION
A ferroelectric random access memory or FRAM is nonvolatile and performs reads and writes like a RAM. No write delays are incurred. The next bus cycle may commence immediately without the need for data polling. The next bus cycle may start immediately. In addition, the product offers virtually unlimited write endurance. Also, FRAM exhibits much lower power consumption than EEPROM. These capabilities make the FM25256 ideal for nonvolatile memory applications requiring frequent or rapid writes or low power operation.
