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IC41C1665 Datasheet(PDF) 4 Page - Integrated Circuit Solution Inc |
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IC41C1665 Datasheet(HTML) 4 Page - Integrated Circuit Solution Inc |
4 / 19 page ![]() IC41C1665 IC41LV1665 4 Integrated Circuit Solution Inc. DR031-0A 10/17/2001 TRUTH TABLE Function RAS RAS RAS RAS RAS LCAS LCAS LCAS LCAS LCAS UCAS UCAS UCAS UCAS UCAS WE WE WE WE WE OE OE OE OE OE Address tR/tC I/O Standby H H H X X X High-Z Read: Word L L L H L ROW/COL DOUT Read: Lower Byte L L H H L ROW/COL Lower Byte, DOUT Upper Byte, High-Z Read: Upper Byte L H L H L ROW/COL Lower Byte, High-Z Upper Byte, DOUT Write: Word (Early Write) L L L L X ROW/COL DIN Write: Lower Byte (Early Write) L L H L X ROW/COL Lower Byte, DIN Upper Byte, High-Z Write: Upper Byte (Early Write) L H L L X ROW/COL Lower Byte, High-Z Upper Byte, DIN Read-Write(1,2) LL L H →LL→H ROW/COL DOUT, DIN Hidden Refresh2) Read L →H→L L L H L ROW/COL DOUT Write L →H→L L L L X ROW/COL DIN RAS-Only Refresh L H H X X ROW/NA High-Z CBR Refresh(3) H →L L L X X X High-Z Notes: 1. These WRITE cycles may also be BYTE WRITE cycles (either LCAS or UCAS active). 2. These READ cycles may also be BYTE READ cycles (either LCAS or UCAS active). 3. At least one of the two CAS signals must be active ( LCAS or UCAS). |
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