Zhuhai Yukming Technology Co., Ltd. >> IC Integrated Circuit of 256kb Wide Voltage Spi F-RAM At45dB641e-Shf-T

IC Integrated Circuit of 256kb Wide Voltage Spi F-RAM At45dB641e-Shf-T

IC Integrated Circuit of 256kb Wide Voltage Spi F-RAM At45dB641e-Shf-T
Price: US $ 2.02/Piece
Min Order: 500/Piece
Pay Type: L/C,T/T,D/P,Paypal
Prod Model: AT45DB641E-SHF-T

Product Description

256Kb Wide Voltage SPI F-RAM
 
Features
256K bit Ferroelectric Nonvolatile RAM
Organized as 32,768 x 8 bits
High Endurance 100 Trillion (1014) Read/Writes
38 Year Data Retention (@ +75ºC)
NoDelay Writes
Advanced High-Reliability Ferroelectric Process
Very Fast Serial Peripheral Interface - SPI
Up to 20 MHz Frequency
Direct Hardware Replacement for EEPROM
SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)
Write Protection Scheme
Hardware Protection
Software Protection
Low Power Operation
Wide Voltage Operation 2.7V - 5.5V
15 µA (typ.) Standby Current
Industry Standard Configurations
Industrial Temperature -40°C to +85°C
8-pin "Green"/RoHS SOIC (-G)
 
Description
The FM25W256 is a 256-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 38 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories. The FM25W256 performs write operations at bus speed. No write delays are incurred. Data is written to the memory array immediately after it has been successfully transferred to the device. The next bus cycle may commence immediately without the need for data polling. In addition, the product offers substantial write endurance compared with other nonvolatile memories. The FM25W256 is capable of supporting 1014 read/write cycles, or 100 million times more write cycles than EEPROM. These capabilities make the FM25W256 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 EEPROM can cause data loss. The FM25W256 provides substantial benefits to users of serial EEPROM as a hardware drop-in replacement. The FM25W256 uses the high-speed SPI bus, which enhances the high-speed write capability of F-RAM technology. Device specifications are guaranteed over an industrial temperature range of -40°C to +85°C.





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