128Kb Serial 3V F-RAM Memory
128K bit Ferroelectric Nonvolatile RAM
Organized as 16,384 x 8 bits
High Endurance 100 Trillion (1014) Read/Writes
10 Year Data Retention
Advanced High-Reliability Ferroelectric Process
Very Fast Serial Peripheral Interface - SPI
Up to 40 MHz Frequency
Direct Hardware Replacement for Serial Flash
SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)
Write Protection Scheme
The FM25V01 is a 128-kilobit nonvolatile memory
employing an advanced ferroelectric process. A
ferroelectric random access memory or F-RAM is
nonvolatile and performs reads and writes like a
RAM. It provides reliable data retention for 10 years
while eliminating the complexities, overhead, and
system level reliability problems caused by Serial
Flash and other nonvolatile memories.
Unlike Serial Flash, the FM25V01 performs write
operations at bus speed. No write delays are incurred.
Data is written to the memory array immediately
after it has been transferred to the device. The next
bus cycle may commence without the need for data
polling. The product offers very high write
endurance, orders of magnitude more endurance than
Serial Flash. Also, F-RAM exhibits lower power
consumption than Serial Flash.
These capabilities make the FM25V01 ideal for
nonvolatile memory applications requiring frequent
or rapid writes or low power operation. Examples
range from data collection, where the number of
write cycles may be critical, to demanding industrial
controls where the long write time of Serial Flash can
cause data loss.
The FM25V01 provides substantial benefits to users
of Serial Flash as a hardware drop-in replacement.
The device uses the high-speed SPI bus, which
Device ID reads out Manufacturer ID & Part ID
Low Voltage, Low Power
Low Voltage Operation 2.0V – 3.6V
Active Current 120 A (typ. @ 1MHz)
Standby Current 90 A (typ.)
Sleep Mode Current 5 A (typ.)
Industry Standard Configurations
Industrial Temperature -40 C to +85 C
8-pin “Green”/RoHS SOIC Package
enhances the high-speed write capability of F-RAM
technology. The device incorporates a read-only
Device ID that allows the host to determine the
manufacturer, product density, and product revision.
The device is guaranteed over an industrial
temperature range of -40°C to +85°C.
Serial Data Input
Serial Data Output
This product conforms to specifications per the terms of the Ramtron standard warranty. The product has completed Ramtron’s
internal qualification testing and has reached production status.
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document Number: 001-84492 Rev. *B
Revised May 29, 2013