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IS41LV44002B-50JI Datasheet(PDF) 7 Page - Integrated Silicon Solution, Inc |
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IS41LV44002B-50JI Datasheet(HTML) 7 Page - Integrated Silicon Solution, Inc |
7 / 21 page Integrated Silicon Solution, Inc. — 1-800-379-4774 7 Rev. A 07/05/06 IS41LV44002B ISSI® AC CHARACTERISTICS (Continued)(1,2,3,4,5,6) (Recommended Operating Conditions unless otherwise noted.) -50 Symbol Parameter Min. Max. Units tRWL Write Command to RAS Lead Time(17) 13 — ns tCWL Write Command to CAS Lead Time(17, 21) 8— ns tWCS Write Command Setup Time(14, 17, 20) 0— ns tDHR Data-in Hold Time (referenced to RAS)39 — ns tACH Column-Address Setup Time to CAS 15 — ns Precharge during WRITE Cycle tOEH OE Hold Time from WE during 8 — ns READ-MODIFY-WRITE cycle(18) tDS Data-In Setup Time(15, 22) 0— ns tDH Data-In Hold Time(15,22) 8— ns tRWC READ-MODIFY-WRITE Cycle Time 108 — ns tRWD RAS to WE Delay Time during 64 — ns READ-MODIFY-WRITE Cycle(14) tCWD CAS to WE Delay Time(14, 20) 26 — ns tAWD Column-Address to WE Delay Time(14) 39 — ns tPC EDO Page Mode READ or WRITE 20 — ns Cycle Time tRASP RAS Pulse Width in EDO Page Mode 50 100K ns tCPA Access Time from CAS Precharge(15) —30 ns tPRWC EDO Page Mode READ-WRITE 56 — ns Cycle Time tCOH Data Output Hold after CAS LOW 5 — ns tOFF Output Buffer Turn-Off Delay from 0 12 ns CAS or RAS(13,15,19,24) tWHZ Output Disable Delay from WE 310 ns tCSR CAS Setup Time (CBR REFRESH)(20, 25) 5— ns tCHR CAS Hold Time (CBR REFRESH)( 21, 25) 8— ns tORD OE Setup Time prior to RAS during 0 — ns HIDDEN REFRESH Cycle tREF Auto Refresh Period 2,048 Cycles — 32 ms tT Transition Time (Rise or Fall)(2, 3) 150 ns AC TEST CONDITIONS Output load: Two TTL Loads and 50 pF Input timing reference levels: VIH = 2.4V, VIL = 0.8V Output timing reference levels: VOH = 2.0V, VOL = 0.8V |
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