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FM25040B-G датащи(PDF) 1 Page - Cypress Semiconductor |
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FM25040B-G датащи(HTML) 1 Page - Cypress Semiconductor |
1 / 13 page 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 Rev. 3.0 www.ramtron.com Jan. 2012 Page 1 of 13 FM25040B 4Kb Serial 5V F-RAM Memory Features 4K bit Ferroelectric Nonvolatile RAM Organized as 512 x 8 bits High Endurance 1 Trillion (10 12) Read/Writes 38 year Data Retention NoDelay™ Writes Advanced High-Reliability Ferroelectric Process Very Fast Serial Peripheral Interface - SPI Up to 20 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 250 A Active Current (1 MHz) 4 A (typ.) Standby Current Industry Standard Configuration Industrial Temperature -40 C to +85 C 8-pin “Green”/RoHS SOIC (-G) Description The FM25040B is a 4-kilobit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or F-RAM is nonvolatile but operates in other respects as 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 FM25040B 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. The FM25040B is capable of supporting up to 10 12 read/write cycles, or a million times more write cycles than EEPROM. These capabilities make the FM25040B 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 FM25040B provides substantial benefits to users of serial EEPROM, in a hardware drop-in replacement. The FM25040B uses the high-speed SPI bus, which enhances the high-speed write capability of F-RAM technology. The specifications are guaranteed over an industrial temperature range of -40°C to +85°C. Pin Configuration Pin Names Function /CS Chip Select /WP Write Protect /HOLD Hold SCK Serial Clock SI Serial Data Input SO Serial Data Output VDD Supply Voltage 5V VSS Ground Ordering Information FM25040B-G “Green” 8-pin SOIC FM25040B-GTR “Green” 8-pin SOIC, Tape & Reel CS SO WP VSS VDD HOLD SCK SI 1 2 3 4 8 7 6 5 |
Аналогичный номер детали - FM25040B-G |
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Аналогичное описание - FM25040B-G |
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