Features
■ 1-Mbit ferroelectric random access memory (F-RAM) logically
organized as 128K × 8
❐ High-endurance 100 trillion (1014) read/writes
❐ 151-year data retention (See the Data Retention and
Endurance table)
❐ NoDelay™ writes
❐ Advanced high-reliability ferroelectric process
■ Very fast serial peripheral interface (SPI)
❐ Up to 40-MHz frequency
❐ Direct hardware replacement for serial flash and EEPROM
❐ Supports SPI mode 0 (0, 0) and mode 3 (1, 1)
■ Sophisticated write protection scheme
❐ Hardware protection using the Write Protect (WP) pin
❐ Software protection using Write Disable instruction
❐ Software block protection for 1/4, 1/2, or entire array
■ Device ID and Serial Number
❐ Manufacturer ID and Product ID
❐ Unique Serial Number (FM25VN10)
■ Low power consumption
❐ 300 A active current at 1 MHz
❐ 90 A (typ) standby current
❐ 5 A sleep mode current
■ Low-voltage operation: VDD = 2.0 V to 3.6 V
■ Industrial temperature: –40 C to +85 C
■ Packages
❐ 8-pin small outline integrated circuit (SOIC) package
❐ 8-pin dual flat no-leads (DFN) package
■ Restriction of hazardous substances (RoHS) compliant
Functional Description
The FM25V10 is a 1-Mbit nonvolatile memory employing an
advanced ferroelectric process. A ferroelectric random access
memory or F-RAM is nonvolatile and performs reads and writes
similar to a RAM. It provides reliable data retention for 151 years
while eliminating the complexities, overhead, and system-level
reliability problems caused by serial flash, EEPROM, and other
nonvolatile memories.
Unlike serial flash and EEPROM, the FM25V10 performs write
operations at bus speed. No write delays are incurred. Data is
written to the memory array immediately after each byte is
successfully transferred to the device. The next bus cycle can
commence without the need for data polling. In addition, the
product offers substantial write endurance compared with other
nonvolatile memories. The FM25V10 is capable of supporting
1014 read/write cycles, or 100 million times more write cycles
than EEPROM.
These capabilities make the FM25V10 ideal for nonvolatile
memory applications, requiring frequent or rapid writes.
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 or EEPROM can cause data loss.
The FM25V10 provides substantial benefits to users of serial
EEPROM or flash as a hardware drop-in replacement. The
FM25V10 uses the high-speed SPI bus, which enhances the
high-speed write capability of F-RAM technology. The
FM25VN10 is offered with a unique serial number that is
read-only and can be used to identify a board or system. Both
the devices incorporates a read-only Device ID that allows the
host to determine the manufacturer, product density, and product
revision. The device specifications are guaranteed over an
industrial temperature range of –40 C to +85 C.
For a complete list of related documentation, click here.
Pinouts
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