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FM25CL04-S Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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FM25CL04-S Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 11 page  Preliminary This is a product in sampling or pre-production phase of develop- Ramtron International Corporation ment. Characteristic data and other specifications are subject to 1850 Ramtron Drive, Colorado Springs, CO 80921 change without notice. (800) 545-FRAM, (719) 481-7000 www.ramtron.com Rev. 1.0 July 2003 Page 1 of 11 FM25CL04 4Kb FRAM Serial 3V Memory Features 4K bit Ferroelectric Nonvolatile RAM • Organized as 512 x 8 bits • Unlimited Read/Write Cycles • 10 Year Data Retention • 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 Consumption • Low Voltage Operation 2.7-3.65V • 1 µA Standby Current Industry Standard Configuration • Industrial Temperature -40 °C to +85°C • 8-pin SOIC Description The FM25CL04 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 10 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories. Unlike serial EEPROMs, the FM25CL04 performs write operations at bus speed. No write delays are incurred. The next bus cycle may commence immediately without the need for data polling. The next bus cycle may start immediately. In addition, the product offers virtually unlimited write endurance. Also, FRAM exhibits much lower power consumption than EEPROM. These capabilities make the FM25CL04 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 FM25CL04 provides substantial benefits to users of serial EEPROM as a hardware drop-in replacement. The FM25CL04 uses the high-speed SPI bus, which enhances the high-speed write capability of FRAM technology. Device specifications are guaranteed over an industrial temperature range of -40°C to +85°C. Pin Configuration Pin Name Function /CS Chip Select /WP Write Protect /HOLD Hold SCK Serial Clock SI Serial Data Input SO Serial Data Output VDD Supply Voltage VSS Ground Ordering Information FM25CL04-S 8-pin SOIC CS SO WP VSS VDD HOLD SCK SI 1 2 3 4 8 7 6 5 |
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