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74LV257DB Arkusz danych(PDF) 3 Page - NXP Semiconductors |
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74LV257DB Arkusz danych(HTML) 3 Page - NXP Semiconductors |
3 / 12 page Philips Semiconductors Product specification 74LV257 Quad 2-input multiplexer (3-State) 1998 May 20 3 LOGIC SYMBOL SV00637 1 S OE 2 1I0 2I0 3I0 4I0 11I 2I1 3I1 4I1 35 4 1Y 6 7 2Y 10 12 4Y 14 11 9 3Y 13 15 LOGIC SYMBOL (IEEE/IEC) SV00638 EN G1 15 1 7 4 9 12 6 5 3 2 MUX 1 11 10 14 13 1 LOGIC DIAGRAM SV00640 OE 1Y 2Y 3Y 4Y 1I1 1I0 2I1 2I0 3I1 3I0 4I1 4I0 S FUNCTIONAL DIAGRAM SV00639 OE S SELECTOR 3–STATE MULTIPLEXER OUTPUTS 1I0 1Y 2Y 3Y 4Y 1I1 2I0 2I1 3I0 3I1 4I0 4I1 115 7 4 9 12 6 5 2 3 11 10 14 13 FUNCTION TABLE INPUTS OUTPUTS OE S nl0 nl1 nY H X X X Z L H X L L L H X H H L L L X L L L H X H NOTES: H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state |
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