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74HC257 Datasheet(PDF) 4 Page - NXP Semiconductors |
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74HC257 Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 13 page 1998 Sep 30 4 Philips Semiconductors Product specification Quad 2-input multiplexer; 3-state 74HC/HCT257 Fig.4 Functional diagram. MGR280 S 1 1I0 2 1Y 4 1I1 3 SELECTOR 3-STATE MULTIPLEXER OUTPUTS 2I0 5 2Y 7 2I1 6 3I0 11 3Y 12 3I1 10 4I0 14 4Y 9 4I1 13 OE 15 FUNCTION TABLE Notes 1. H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state INPUTS OUTPUT OE S nI0 nI1 nY H XXX Z LH X L L L HXH H LLL X L LL H X H Fig.5 Logic diagram. |
Similar Part No. - 74HC257 |
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Similar Description - 74HC257 |
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