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IC41C1664-35T Datasheet(PDF) 8 Page - Integrated Circuit Solution Inc |
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IC41C1664-35T Datasheet(HTML) 8 Page - Integrated Circuit Solution Inc |
8 / 21 page IC41C1664 IC41LV1664 8 Integrated Circuit Solution Inc. DR033-0A 11/15/2001 AC CHARACTERISTICS(1,2,3,4,5,6) (Recommended Operating Conditions unless otherwise noted.) -25 30 35 40 Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Units tRC Random READ or WRITE Cycle Time 43 — 55 — 65 — 75 — ns tRAC Access Time from RAS(6, 7) —25 — 30 —35 — 40 ns tCAC Access Time from CAS(6, 8, 15) —8 — 9 — 10 — 11 ns tAA Access Time from Column-Address(6) —12 — 16 —18 — 20 ns tRAS RAS Pulse Width 25 10K 30 10K 35 10K 40 10K ns tRP RAS Precharge Time 15 — 20 — 23 — 25 — ns tCAS CAS Pulse Width(26) 4 10K 9 10K 10 10K 11 10K ns tCP CAS Precharge Time(9, 25) 4— 5 — 6— 7— ns tCSH CAS Hold Time (21) 25 — 30 — 35 — 40 — ns tRCD RAS to CAS Delay Time(10, 20) 10 17 10 21 10 25 10 29 ns tASR Row-Address Setup Time 0 — 0 — 0 — 0 — ns tRAH Row-Address Hold Time 5 — 5 — 5 — 5 — ns tASC Column-Address Setup Time(20) 0— 0 — 0— 0— ns tCAH Column-Address Hold Time(20) 5— 5 — 5— 5— ns tAR Column-Address Hold Time 22 — 26 — 30 — 34 — ns (referenced to RAS) tRAD RAS to Column-Address Delay Time(11) 813 8 14 817 8 20 ns tRAL Column-Address to RAS Lead Time 12 — 16 — 18 — 20 — ns tRPC RAS to CAS Precharge Time 10 — 10 — 10 — 10 — ns tRSH RAS Hold Time(27) 8— 9 — 10 — 11 — ns tCLZ CAS to Output in Low-Z(15, 29) 3— 3 — 3— 3— ns tCRP CAS to RAS Precharge Time(21) 5— 5 — 5— 5— ns tOD Output Disable Time(19, 28, 29) —6 — 8 —8 —8 ns tOE Output Enable Time(15, 16) —8 — 9 — 10 — 11 ns tOEHC OE HIGH Hold Time from CAS HIGH 10 — 10 — 10 — 10 — ns tOEP OE HIGH Pulse Width 10 — 10 — 10 — 10 — ns tOES OE LOW to CAS HIGH Setup Time 5 — 5 — 5 — 5 — ns tRCS Read Command Setup Time(17, 20) 0— 0 — 0— 0— ns tRRH Read Command Hold Time 0 — 0 — 0 — 0 — ns (referenced to RAS)(12) tRCH Read Command Hold Time 0 — 0 — 0 — 0 — ns (referenced to CAS)(12, 17, 21) tWCH Write Command Hold Time(17, 27) 5— 5 — 5— 5— ns tWCR Write Command Hold Time 22 — 26 — 30 — 34 — ns (referenced to RAS)(17) tWP Write Command Pulse Width(17) 5— 5 — 5— 5— ns tWPZ WE Pulse Widths to Disable Outputs 10 — 10 — 10 — 10 — ns tRWL Write Command to RAS Lead Time(17) 7— 8 — 9— 10 — ns tCWL Write Command to CAS Lead Time(17, 21) 5— 6 — 7— 8— ns tWCS Write Command Setup Time(14, 17, 20) 0— 0 — 0— 0— ns tDHR Data-in Hold Time (referenced to RAS) 22— 26 — 30— 34 — ns |
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