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U62H256ASA35LL Datasheet(PDF) 5 Page - Zentrum Mikroelektronik Dresden AG |
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U62H256ASA35LL Datasheet(HTML) 5 Page - Zentrum Mikroelektronik Dresden AG |
5 / 10 page 5 April 20, 2004 U62H256A Switching Characteristics Read Cycle Symbol 35 55 Unit Alt. IEC Min. Max. Min. Max. Read Cycle Time tRC tcR 35 55 ns Address Access Time to Data Valid tAA ta(A) 35 55 ns Chip Enable Access Time to Data Valid tACE ta(E) 35 55 ns G LOW to Data Valid tOE ta(G) 15 25 ns E HIGH to Output in High-Z tHZCE tdis(E) 15 20 ns G HIGH to Output in High-Z tHZOE tdis(G) 12 15 ns E LOW to Output in Low-Z tLZCE ten(E) 33 ns G LOW to Output in Low-Z tLZOE ten(G) 00 ns Output Hold Time from Address Change tOH tv(A) 33 ns E LOW to Power-Up Time tPU 00 ns E HIGH to Power-Down Time tPD 35 55 ns Switching Characteristics Write Cycle Symbol 35 55 Unit Alt. IEC Min. Max. Min. Max. Write Cycle Time tWC tcW 35 55 ns Write Pulse Width tWP tw(W) 20 35 ns Write Setup Time tWP tsu(W) 20 35 ns Address Setup Time tAS tsu(A) 00 ns Address Valid to End of Write tAW tsu(A-WH) 25 40 ns Chip Enable Setup Time tCW tsu(E) 25 40 ns Pulse Width Chip Enable to End of Write tCW tw(E) 25 40 ns Data Setup Time tDS tsu(D) 15 25 ns Data Hold Time tDH th(D) 00 ns Address Hold from End of Write tAH th(A) 00 ns W LOW to Output in High-Z tHZWE tdis(W) 15 20 ns G HIGH to Output in High-Z tHZOE tdis(G) 12 15 ns W HIGH to Output in Low-Z tLZWE ten(W) 00 ns G LOW to Output in Low-Z tLZOE ten(G) 00 ns |
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