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FM25040-S 数据表(PDF) 1 Page - List of Unclassifed Manufacturers |
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FM25040-S 数据表(HTML) 1 Page - List of Unclassifed Manufacturers |
1 / 14 page This data sheet contains design specifications for product development. Ramtron International Corporation These specifications may change in any manner without notice 1850 Ramtron Drive, Colorado Springs, CO 80921 (800) 545-FRAM, (719) 481-7000, Fax (719) 481-7058 www.ramtron.com 11 May 2000 1/14 FM25040 4Kb FRAM Serial Memory Features 4K bit Ferroelectric Nonvolatile RAM • Organized as 512 x 8 bits • High endurance 10 Billion (10 10) read/writes • 10 year data retention at 85 ° C • NoDelay™ write • Advanced high-reliability ferroelectric process Fast Serial Peripheral Interface - SPI • Up to 2.1 MHz maximum bus frequency • Direct hardware replacement for EEPROM • Supports SPI Mode 0 (CPOL=0, CPHA=0) Sophisticated Write Protection Scheme • Hardware protection • Software protection Low Power Consumption • 10 µA standby current Industry Standard Configuration • Industrial temperature -40 ° C to +85° C • 8-pin SOP or DIP Description The FM25040 is a 4-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 10 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories. Unlike serial EEPROMs, the FM25040 performs write operations at bus speed. No write delays are incurred. Data is written to the memory array mere hundreds of nanoseconds 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 FM25040 is capable of supporting up to 1E10 read/write cycles -- far more than most systems will require from a serial memory. These capabilities make the FM25040 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 FM25040 provides substantial benefits to users of serial EEPROM, in a hardware drop-in replacement. The FM25040 uses the high-speed SPI bus which enhances the high-speed write capability of FRAM technology. It is guaranteed over an industrial temperature range of -40°C to +85°C. Pin Configuration CS SO WP VSS VCC HOLD SCK SI Pin Names Function /CS Chip Select SO Serial Data Output /WP Write Protect VSS Ground SI Serial Data Input SCK Serial Clock /HOLD Hold VCC Supply Voltage 5V Ordering Information FM25040-P 8-pin plastic DIP FM25040-S 8-pin SOP |
类似零件编号 - FM25040-S |
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类似说明 - FM25040-S |
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