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74AC109 Datasheet(PDF) 2 Page - Fairchild Semiconductor |
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74AC109 Datasheet(HTML) 2 Page - Fairchild Semiconductor |
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©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com 74AC109, 74ACT109 Rev. 1.5 2 Logic Symbols Truth Table Each half. H = HIGH Voltage Level L = LOW Voltage Level = LOW-to-HIGH Transition X = Immaterial Q0(Q0) = Previous Q0(Q0) before LOW-to-HIGH Transition of Clock Logic Diagram One half shown. Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Inputs Outputs SD CD CP J K Q Q LH X X X H L HL X X X L H LL X X X H H HH L L L H HH HL Toggle HH L H Q0 Q0 HH H H H L HH L X X Q0 Q0 IEEE/IEC |
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