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IS41C44052C Datasheet(PDF) 2 Page - Integrated Silicon Solution, Inc |
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IS41C44052C Datasheet(HTML) 2 Page - Integrated Silicon Solution, Inc |
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2 / 17 page  2 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. 00B 08/09/2010 IS41C44052C IS41LV44052C FUNCTIONAL BLOCK DIAGRAM OE WE CAS CAS WE DATA I/O BUS COLUMN DECODERS SENSE AMPLIFIERS MEMORY ARRAY 4,194,304 x 4 CAS CONTROL LOGIC WE CONTROL LOGICS OE CONTROL LOGIC I/O0-I/O3 RAS A0-A10 RAS CLOCK GENERATOR REFRESH COUNTER ADDRESS BUFFERS TRUTH TABLE Function RAS CAS WE OE Address tR/tC I/O Standby H H X X X High-Z Read L L H L ROW/COL Dout Write:Word(EarlyWrite) L L L X ROW/COL Din Read-Write L L H→L L→H ROW/COL Dout, Din HiddenRefresh Read L→H→L L H L ROW/COL Dout Write(1)L→H→L L L X ROW/COL Dout RAS -OnlyRefresh H→L H X X ROW/NA High-Z CBRRefresh H→L L X X X High-Z Note: 1. EARLYWRITEonly. |
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