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FM25640-GA Scheda tecnica(PDF) 1 Page - Ramtron International Corporation |
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FM25640-GA Scheda tecnica(HTML) 1 Page - Ramtron International Corporation |
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1 / 13 page  AEC Q100 Grade 1 Compliant This product conforms to specifications per the terms of the Ramtron Ramtron International Corporation standard warranty. The product has completed Ramtron’s internal 1850 Ramtron Drive, Colorado Springs, CO 80921 qualification testing and has reached production status. (800) 545-FRAM, (719) 481-7000 http://www.ramtron.com Rev. 3.0 July 2007 1 of 13 FM25640 – Automotive Temp. 64Kb FRAM Serial Memory Features 64K bit Ferroelectric Nonvolatile RAM • Organized as 8,192 x 8 bits • High Endurance 1 Trillion (10 12) Read/Writes • NoDelay™ Writes • Advanced high-reliability ferroelectric process Very Fast Serial Peripheral Interface - SPI • Up to 4 MHz maximum bus frequency • Direct hardware replacement for EEPROM • SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1) Sophisticated Write Protection Scheme • Hardware Protection • Software Protection Low Power Consumption • 10 µA Standby Current Industry Standard Configuration • Automotive Temperature -40 ° C to +125° C o Qualified to AEC Q100 Specification • “Green”/RoHS 8-pin SOIC Description The FM25640 is a 64-kilobit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or FRAM is nonvolatile but operates in other respects as a RAM. It provides reliable data retention for years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories. Unlike serial EEPROMs, the FM25640 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. In addition, the product offers substantial write endurance compared with other nonvolatile memories. The FM25640 is capable of supporting up to 10 12 read/write cycles -- far more than most systems will require from a serial memory. These capabilities make the FM25640 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 automotive controls where the long write time of EEPROM can cause data loss. The FM25640 provides substantial benefits to users of serial EEPROM, in a hardware drop-in replacement. The FM25640 uses the high-speed SPI bus, which enhances the high-speed write capability of FRAM technology. The specifications are guaranteed over an automotive temperature range of -40°C to +125°C. Pin Configuration Pin Names Function /CS Chip Select /HOLD Hold /WP Write Protect SCK Serial Clock SI Serial Data Input SO Serial Data Output VDD 5V VSS Ground Ordering Information FM25640-GA “Green” 8-pin SOIC, Auto- motive Grade 1 CS SO WP VSS VDD HOLD SCK SI 1 2 3 4 8 7 6 5 |
Codice articolo simile - FM25640-GA |
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Descrizione simile - FM25640-GA |
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