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54ACT374L Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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54ACT374L Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 8 page Connection Diagrams Functional Description The ’AC/’ACT374 consists of eight edge-triggered flip-flops with individual D-type inputs and TRI-STATE true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold time require- ments on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the out- puts go to the high impedance state. Operation of the OE in- put does not affect the state of the flip-flops. Truth Table Inputs Outputs D n CP OE O n H N LH L N LL XX H Z H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance N = LOW-to-HIGH Transition Logic Diagram Pin Assignment for DIP and Flatpak DS100289-3 Pin Assignment for LCC DS100289-4 DS100289-5 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. www.national.com 2 |
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