전자부품 데이터시트 검색엔진 |
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74VHCT574AMTC 데이터시트(PDF) 2 Page - Fairchild Semiconductor |
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74VHCT574AMTC 데이터시트(HTML) 2 Page - Fairchild Semiconductor |
2 / 8 page www.fairchildsemi.com 2 Pin Descriptions Truth Table H HIGH Voltage Level L LOW Voltage Level X Immaterial Z High Impedance LOW-to-HIGH Transition Functional Description The VHCT574A consists of eight edge-triggered flip-flops with individual D-type inputs and 3-STATE true outputs. The buffered clock and buffered Output Enable are com- mon to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold time requirements on the LOW-to-HIGH Clock (CP) transi- tion. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Opera- tion of the OE input does not affect the state of the flip- flops. Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Pin Names Description D0–D7 Data Inputs CP Clock Pulse Input 3-STATE OE Output Enable Input 3-STATE O0–O7 Outputs Inputs Outputs Dn CP OE On H L H L L L X X H Z |
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