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FM24C04B

製品説明
仕様・特性

FM24C04B 4Kb Serial 5V F-RAM Memory Features 4K bit Ferroelectric Nonvolatile RAM  Organized as 512 x 8 bits  High Endurance 1012 Read/Writes  38 Year Data Retention  NoDelay™ Writes  Advanced High-Reliability Ferroelectric Process Fast Two-wire Serial Interface  Up to 1 MHz maximum bus frequency  Direct hardware replacement for EEPROM  Supports legacy timing for 100 kHz & 400 kHz Description The FM24C04B is a 4-kilobit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or FRAM 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 FM24C04B performs write operations at bus speed. No write delays are incurred. Data is written to the memory array in the cycle after it has been successfully transferred to the device. The next bus cycle may commence immediately without the need for data polling. The FM24C04B is capable of supporting 1012 read/write cycles, or a million times more write cycles than EEPROM. These capabilities make the FM24C04B 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 EEPROM can cause data loss. The combination of features allows more frequent data writing with less overhead for the system. Low Power Operation  5V operation  100 A Active Current (100 kHz)  4 A (typ.) Standby Current Industry Standard Configuration  Industrial Temperature -40 C to +85 C  8-pin “Green”/RoHS SOIC (-G) Pin Configuration NC A1 A2 1 8 2 7 3 6 VSS 4 5 Pin Names A1-A2 SDA SCL WP VSS VDD VDD WP SCL SDA Function Device Select Address 1 and 2 Serial Data/Address Serial Clock Write Protect Ground Supply Voltage Ordering Information FM24C04B-G FM24C04B-GTR “Green”/RoHS 8-pin SOIC “Green”/RoHS 8-pin SOIC, Tape & Reel The FM24C04B provides substantial benefits to users of serial EEPROM, yet these benefits are available in a hardware drop-in replacement. The FM24C04B is available in an industry standard 8-pin SOIC package and uses a familiar two-wire protocol. The specifications are guaranteed over the industrial temperature range from -40°C to +85°C. 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. Rev. 3.0 Jan. 2012 Ramtron International Corporation 1850 Ramtron Drive, Colorado Springs, CO 80921 (800) 545-FRAM, (719) 481-7000 www.ramtron.com Page 1 of 12

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RAMTRON

供給状況

 
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