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IS41C44002 Datasheet(PDF) 8 Page - Integrated Circuit Solution Inc |
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IS41C44002 Datasheet(HTML) 8 Page - Integrated Circuit Solution Inc |
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8 / 20 page  IC41C4400x and IC41LV4400x Series 8 Integrated Circuit Solution Inc. DR007-0B 10/17/2002 AC CHARACTERISTICS (Continued)(1,2,3,4,5,6) (Recommended Operating Conditions unless otherwise noted.) - 50 - 60 Symbol Parameter Min. Max. Min. Max. Units tACH Column-Address Setup Time to CAS 15 − 15 − ns Precharge during WRITE Cycle tOEH OE Hold Time from WE during 8 − 10 − ns READ-MODIFY-WRITE cycle(18) tDS Data-In Setup Time(15, 22) 0 − 0 − ns tDH Data-In Hold Time(15, 22) 8 − 10 − ns tRWC READ-MODIFY-WRITE Cycle Time 108 − 133 − ns tRWD RAS to WE Delay Time during 64 − 77 − ns READ-MODIFY-WRITE Cycle(14) tCWD CAS to WE Delay Time(14, 20) 26 − 32 − ns tAWD Column-Address to WE Delay Time(14) 39 − 47 − ns tPC EDO Page Mode READ or WRITE 20 − 25 − ns Cycle Time tRASP RAS Pulse Width in EDO Page Mode 50 100K 60 100K ns tCPA Access Time from CAS Precharge(15) − 30 − 35 ns tPRWC EDO Page Mode READ-WRITE 56 − 68 − ns Cycle Time tCOH Data Output Hold after CAS LOW 5 − 5 − ns tOFF Output Buffer Turn-Off Delay from 0 12 0 15 ns CAS or RAS(13,15,19, 24) tWHZ Output Disable Delay from WE 310 3 10 ns tCSR CAS Setup Time (CBR REFRESH)(20, 25) 5 − 5 − ns tCHR CAS Hold Time (CBR REFRESH)( 21, 25) 8 − 10 − ns tORD OE Setup Time prior to RAS during 0 − 0 − ns HIDDEN REFRESH Cycle tREF Auto Refresh Period 2,048 Cycles − 32 − 32 ms 4,096 Cycles − 64 − 64 tT Transition Time (Rise or Fall)(2, 3) 150 1 50 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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