Cypress Semiconductor 4kbit Serial-SPI FRAM Memory 8-Pin DFN, FM25L04B-DG

Ferroelectric Random Access Memory (F-RAM) is energy-efficient and it has the highest-reliability of the non-volatile RAMs for both serial and parallel interfaces. Parts with suffix A are designed for automotive applications and are AEC-Q100 qualified.

Nonvolatile Ferroelectric RAM Memory
Fast write speed
High endurance
Low power consumption

4-Kbit ferroelectric random access memory (F-RAM) logically
organized as 512 x 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 20 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
Low power consumption
200 A active current at 1 MHz
3 A (typ) standby current
Low-voltage operation: VDD = 2.7 V to 3.6 V
Industrial temperature: –40 C to +85 C
Packages
8-pin small outline integrated circuit (SOIC) package
8-pin thin dual flat no leads (DFN) package

FRAM (Ferroelectric RAM)

FRAM (Ferroelectric Random Access Memory) is a non-volatile memory that uses ferroelectric film as a capacitor for storing data. Possessing characteristics of both ROM and RAM devices, F-RAM features high-speed access, high endurance in write mode, low power consumption, non-volatility, and excellent tamper resistance. It is therefore ideal memory for use in smart cards which need high security and low power consumption, as well as cellular phones and other devices.