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FM1114 데이터시트(PDF) 1 Page - Ramtron International Corporation |
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FM1114 데이터시트(HTML) 1 Page - Ramtron International Corporation |
1 / 8 page Preliminary This is a product that has fixed target specifications but are subject Ramtron International Corporation to change pending characterization results. 1850 Ramtron Drive, Colorado Springs, CO 80921 (800) 545-FRAM, (719) 481-7000 http://www.ramtron.com Rev. 1.1 Aug. 2007 Page 1 of 8 FM1114 Nonvolatile 3V Quad State Saver Features Nonvolatile State Saver • Logic States Retained in Absence of Power • Outputs Automatically Restored at Power-up • Unlimited Number of State Changes • Max tPD 50ns at 2.7V • Max Frequency 1 MHz Low Power Operation • Supply voltage of 2.7V to 3.6V • 0.5 µA Standby Current Industry Standard Configuration • Industrial Temperature -40 ° C to +85° C • 16-pin “Green”/RoHS QFN Package Overview The FM1114 is an innovative FRAM-based device that stores inputs like conventional logic and retains the stored state in the absence of power. This product solves three basic problems in an elegant fashion. First, it provides continuous access to nonvolatile system settings without performing a memory read operation or using dedicated processor I/O pins. Second, it allows the storage of signals that may change frequently and possibly without notice. Third, it allows the nonvolatile storage of a system setting without the system overhead and extra pins of a serial memory. Functionally, the inputs are stored and passed to the output on the rising edge of the clock CLK. This unique product serves a variety of applications. Here are a few applications: ! Control relays or valves with automatic setting on power-up without processor intervention ! Interface to soft/momentary front-panel switch and indicator lamp. Capture switch settings and drive LEDs without processor intervention ! Replaces jumpers & control signal routing ! Initialize state of I/O card signals ! Eliminate the overhead of serial memory for systems needing only a bit of data Pin Configuration Pin Names Function DN Data In QN Data Out EN Enable CLK Clock VDD Supply Voltage VSS Ground Ordering Information FM1114-QG Quad State Saver, 16-pin “Green”/RoHS QFN Top View VDD D0 Q0 D1 Q2 D2 D3 VSS 1 2 3 4 11 |
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