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IS45LV44002B-50JLA1 Datasheet(PDF) 2 Page - Integrated Silicon Solution, Inc |
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IS45LV44002B-50JLA1 Datasheet(HTML) 2 Page - Integrated Silicon Solution, Inc |
2 / 20 page 2 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. A 09/12/05 IS45LV44002B ISSI® 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 RAS RAS RAS RAS CAS CAS CAS CAS CAS WE WE WE WE WE OE OE OE OE OE Address tR/tC I/O Standby H H X X X High-Z Read L L H L ROW/COL DOUT Write: Word (Early Write) L L L X ROW/COL DIN Read-Write L L H →LL→H ROW/COL DOUT, DIN EDO Page-Mode Read 1st Cycle: L H →L H L ROW/COL DOUT 2nd Cycle: L H →L H L NA/COL DOUT EDO Page-Mode Write 1st Cycle: L H →L L X ROW/COL DIN 2nd Cycle: L H →L L X NA/COL DIN EDO Page-Mode 1st Cycle: L H →LH→LL→H ROW/COL DOUT, DIN Read-Write 2nd Cycle: L H →LH→LL→H NA/COL DOUT, DIN Hidden Refresh Read L →H→L L H L ROW/COL DOUT Write(1) L →H→L L L X ROW/COL DOUT RAS-Only Refresh L H X X ROW/NA High-Z CBR Refresh H →L L X X X High-Z Note: 1. EARLY WRITE only. |
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