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74HCT173 Arkusz danych(PDF) 4 Page - NXP Semiconductors |
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74HCT173 Arkusz danych(HTML) 4 Page - NXP Semiconductors |
4 / 10 page December 1990 4 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state 74HC/HCT173 FUNCTION TABLE Notes 1. H = HIGH voltage level h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition L = LOW voltage level I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition q = lower case letters indicate the state of the referenced input (or output) one set-up time prior to the LOW-to-HIGH CP transition X = don’t care Z = high impedance OFF-state ↑ = LOW-to-HIGH CP transition REGISTER OPERATING MODES INPUTS OUTPUTS MR CP E1 E2 Dn Qn (register) reset (clear) H X X X X L parallel load L L ↑ ↑ l l l l l h L H hold (no change) L L X X h X X h X X qn qn 3-STATE BUFFER OPERATING MODES INPUTS OUTPUTS Qn (register) OE1 OE2 Q0 Q1 Q2 Q3 read L H L L L L L H L H L H L H disabled X X H X X H Z Z Z Z Z Z Z Z Fig.4 Functional diagram. |
Podobny numer części - 74HCT173 |
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