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MC74AC646 データシート(PDF) 3 Page - ON Semiconductor |
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MC74AC646 データシート(HTML) 3 Page - ON Semiconductor |
3 / 10 page MC74AC646, MC74ACT646 www.onsemi.com 3 FUNCTION TABLE Inputs Data I/O* Operation or Function G DIR CAB CBA SAB SBA A0−A7 B0−B7 H H X X H or L H or L X X X X Input Input Isolation Store A and B Data L L L L X X X X X X L H Output Input Real Time B Data to A Bus Stored B Data to A Bus L L H H X H or L X X L H X X Input Output Real Time A Data to B Bus Stored A Data to B Bus *The data output functions may be enabled or disabled by various signals at the G and DIR inputs. Data input functions are always enabled; i.e., data at the bus pins will be stored on every LOW−to−HIGH transition of the appropriate clock inputs. NOTE: H = HIGH Voltage Level; L = LOW Voltage Level; X = Immaterial; = LOW−to−HIGH Transition |
同様の部品番号 - MC74AC646_15 |
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同様の説明 - MC74AC646_15 |
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