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AS4LC256K16E0-45JC Datasheet(PDF) 7 Page - Alliance Semiconductor Corporation |
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AS4LC256K16E0-45JC Datasheet(HTML) 7 Page - Alliance Semiconductor Corporation |
7 / 25 page ® AS4LC256K16EO 4/11/01; V.1.1 Alliance Semiconductor P. 7 of 25 EDO page mode cycle Refresh cycle Output enable Self refresh cycle Std Symbol Parameter -35 -45 -60 Unit Notes Min Max Min Max Min Max tPC Read or write cycle time (fast page) 15 – 17 – 25 – ns 14 tCAP Access time from CAS precharge – 19 – 21 – 23 ns 13 tCP CAS precharge time (fast page) 4 – 5 – 6 – ns tPCM EDO page mode RMW cycle 56 – 58 – 60 – ns tCRW Page mode CAS pulse width (RMW) 44 – 46 – 50 – ns tRASP RAS pulse width 35 75K 45 75K 60 75K ns Std Symbol Parameter -35 -45 -60 Unit Notes Min Max Min Max Min Max tCSR CAS setup time (CAS-before-RAS) 10 – 10 – 10 – ns 3 tCHR CAS hold time (CAS-before-RAS)8 – 8 – 10 – ns 3 tRPC RAS precharge to CAS hold time 0 – 0 – 0 – ns tCPT CAS precharge time (CAS-before-RAS counter test) 8– 8 – 8 – ns Std Symbol Parameter -35 -45 -60 Unit Notes Min Max Min Max Min Max tROH RAS hold time referenced to OE 5– 5 – 5 – ns tOEA OE access time – 10 – 10 – 10 ns tOED OE to data delay 5 – 5 – 8 – ns tOEZ Output buffer turnoff delay from OE –8 – 8 – 8 ns 8 tOEH OE command hold time 8 – 8 – 8 – ns Std Symbol Parameter -35 -45 -60 Unit Notes Min Max Min Max Min Max tRASS RAS pulse width (CBR self refresh) 100K – 100K – 100K – ns tRPS RAS precharge time (CBR self refresh) 85 – 85 – 85 – ns tCHS CAS hold time (CBR self refresh) 30 – 30 – 30 – ns |
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