Datenblatt-Suchmaschine für elektronische Bauteile |
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54ACT399L Datenblatt(PDF) 2 Page - National Semiconductor (TI) |
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54ACT399L Datenblatt(HTML) 2 Page - National Semiconductor (TI) |
2 / 6 page Functional Description The ’AC/ACT399 is a high-speed quad 2-port register. It se- lects four bits of data from either of two sources (Ports) un- der control of a common Select input (S). The selected data is transferred to a 4-bit output register synchronous with the LOW-to-HIGH transition of the Clock input (CP). The 4-bit D-type output register is fully edge-triggered. The Data in- puts (I 0x,I1x) and Select input (S) must be stable only a setup time prior to and hold time after the LOW-to-HIGH transition of the Clock input for predictable operation. Function Table Inputs Outputs SI 0 I 1 CP Q Q LL X N LH LH X N HL HX L N LH HX H N HL H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial N = LOW-to-HIGH Clock Transition Logic Diagram DS100356-4 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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Ähnliche Beschreibung - 54ACT399L |
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