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FM1112-QG 데이터시트(PDF) 5 Page - Ramtron International Corporation |
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FM1112-QG 데이터시트(HTML) 5 Page - Ramtron International Corporation |
5 / 8 page FM1112 NV Quad State Saver Rev. 1.0 Aug. 2007 Page 5 of 8 AC Parameters (TA = -40° C to + 85° C, VDD = 2.7V to 3.6V, CL = 30 pF unless otherwise specified) Symbol Parameter Min Max Units Notes fMAX Maximum Clock Frequency 1 MHz tLOW CLK Low Period 0.3 µs tHIGH CLK High Period 0.3 µs tPD Propagation delay CLK to QN 50 ns tHZ EN Low to QN Hi-Z 25 ns 1 tR Input Rise Time 100 ns 1 tF Input Fall Time 100 ns 1 tDS Data (DN) Setup Time to CLK ↑ 5 ns tDH Data (DN) Hold Time after CLK ↑ 10 ns tEHD EN Hold Time (EN High after CLK ↑) 0 µs tEH EN High Time 5 µs tEL EN Low Time 2 µs Notes 1. This parameter is characterized but not tested. Power Cycling and Data Retention (TA = -40° C to + 85° C, VDD = 2.7V to 3.6V, unless otherwise specified) Symbol Parameter Min Max Units Notes Nonvolatile Data Retention Time 45 - years tVDR VDD Rise Time 25 - µs/V 1 tVDF VDD Fall Time 50 - µs/V 1 tRES EN High to QN Restore Time - 0.5 µs 2 tPDS EN Low to Power Down Time 1 - µs tEHFC EN High to First Clock (CLK ↑) after Power Up 4 - µs 3 Notes 1. Slope measured at any point on VDD waveform. 2. After power up, when EN goes high the nonvolatile latches are read and the values restored to the outputs QN. 3. After power up, this is the minimum time required before a state change operation may occur. EN and VDD may be coincident at power up, and in this case tEHFC time is referenced to VDD (min) and CLK ↑. Capacitance (TA = 25° C , f=1.0 MHz, VDD = 3.3V) Symbol Parameter Min Max Units Notes CI Input Capacitance - 14 pF 1 Notes 1. This parameter is characterized but not tested. |
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