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EM614163A Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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EM614163A Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
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7 / 23 page  EtronTech Em614163A-30/35/40/45 Preliminary 7 April 1997 Read Cycle Em614163A Parameter Symbol -30/35/40/45 Unit Notes Min Max Access time from RAS tRAC ¡Ð 30/35/40/45 ns 13 Access time from U/LCAS tCAC ¡Ð 9/10/11/12 ns 14, 15, 16 Access time from column address tAA ¡Ð 16/18/20/22 ns 15, 17 Access time from OE tOEA ¡Ð 9/9/10/10 ns Read command setup time tRCS 0 ¡Ð ns 8 Read command hold time to U/LCAS tRCH 0 ¡Ð ns 11, 18 Read command hold time to RAS tRRH 0 ¡Ð ns 18 Output buffer turn-off time tOFF 0 6/7/8/8 ns 19 Output buffer turn-off OE tOEZ 0 6/7/8/8 ns 19 Write Cycle Write command setup time tWCS 0 ¡Ð ns 8, 20 Write command hold time tWCH 5/6/6/6 ¡Ð ns 8 Write command pulse width tWP 5/6/6/6 ¡Ð ns Write command to RAS lead time tRWL 10 ¡Ð ns Write command to U/LCAS lead time tCWL 5/5/6/6 ¡Ð ns 21 Data-in setup time tDS 0 ¡Ð ns 22 Data-in hold time tDH 5/6/6/7 ¡Ð ns 22 OE hold time from WE tOEH 5/6/6/6 ¡Ð ns Read-Modify-Write Cycle Em614163A Parameter Symbol -30/35/40/45 Unit Notes Min Max Read-modify-write cycle time tRWC 73/83/90/100 ¡Ð ns 1 RAS to WE delay time tRWD 41/49/54/60 ¡Ð ns 20 U/LCAS to WE delay time tCWD 20/24/25/27 ¡Ð ns 20 Column address to WE delay time tAWD 33/40/44/49 ¡Ð ns 20 Refresh Cycle U/LCAS setup time (CAS -before-RAS refresh cycle) tCSR 6/7/8/9 ¡Ð ns 8 U/LCAS hold time (CAS -before-RAS refresh cycle) tCHR 7/8/9/10 ¡Ð ns 11 RAS precharge to U/LCAS hold time tRPC 5 ¡Ð ns 8 U/LCAS precharge time in normal mode tCPN 5/5/5/6 ¡Ð ns 23 |
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