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A42U0616 Datasheet(PDF) 5 Page - AMIC Technology |
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A42U0616 Datasheet(HTML) 5 Page - AMIC Technology |
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5 / 25 page  A42U0616 Series PRELIMINARY (June, 2001, Version 0.0) 4 AMIC Technology, Inc. Truth Table Function RAS UCAS LCAS WE OE Address I/Os Notes Standby H X X X X X High-Z Read: Word L L L H L Row/Col. Data Out Read: Lower Byte L H L H L Row/Col. I/O0-7 = Data Out I/O8-15 = High-Z Read: Upper Byte L L H H L Row/Col. I/O0-7 = High-Z I/O8-15 = Data Out Write: Word L L L L H Row/Col. Data In Write: Lower Byte L H L L H Row/Col. I/O0-7 = Data In I/O8-15 = X Write: Upper Byte L L H L H Row/Col. I/O0-7 = X I/O8-15 = Data In Read-Write L L L H →L L →H Row/Col. Data Out → Data In 1,2 EDO-Page-Mode Read: Hi-Z -First cycle -Subsequent Cycles L L H →L H →L H →L H →L H H H →L H →L Row/Col. Col. Data Out Data Out 2 2 EDO-Page-Mode Write -First cycle -Subsequent Cycles L L H →L H →L H →L H →L L L H H Row/Col. Col. Data In Data In 1 1 EDO-Page-Mode Read-Write -First cycle -Subsequent Cycles L L H →L H →L H →L H →L H →L H →L L →H L →H Row/Col. Col. Data Out → Data In Data Out → Data In 1, 2 1, 2 Hidden Refresh Read L →H→L L L H L Row/Col. Data Out 2 Hidden Refresh Write L →H→L L L L X Row/Col. Data In → High-Z 1 RAS -Only Refresh L H H X X Row High-Z CBR Refresh H →L L L X X X High-Z 3 Self Refresh H →L L L H X X High-Z Note: 1. Byte Write may be executed with either UCAS or LCAS active. 2. Byte Read may be executed with either UCAS or LCAS active. 3. Only one CAS signal ( UCAS or LCAS ) must be active. |
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