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74AHCT257D 数据表(PDF) 4 Page - NXP Semiconductors |
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74AHCT257D 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 20 page 2000 Apr 03 4 Philips Semiconductors Product specification Quad 2-input multiplexer; 3-state 74AHC257; 74AHCT257 handbook, halfpage 257 MNA536 1 2 3 4 5 6 7 8 S 1I0 1I1 1Y 2I0 2I1 2Y GND VCC OE 4I0 4I1 4Y 3I0 3I1 3Y 16 15 14 13 12 11 10 9 Fig.1 Pin configuration. handbook, halfpage MNA537 1I0 1I1 2I0 2I1 3I0 3I1 4I0 4I1 S 1Y 2Y 3Y 4Y 1 15 12 9 7 4 13 14 10 11 6 5 3 2 OE Fig.2 Logic symbol. MNA538 handbook, halfpage 12 9 7 15 1 G1 EN MUX 1 1 4 13 14 10 11 6 5 3 2 Fig.3 IEC logic symbol. handbook, halfpage MNA540 3-STATE MULTIPLEXER OUTPUTS SELECTOR 2Y 3Y 4Y 12 9 7 2I0 2I1 3I0 3I1 4I0 4I1 S OE 13 15 1 14 10 11 6 5 1Y 4 1I0 1I1 3 2 Fig.4 Functional diagram. |
类似零件编号 - 74AHCT257D |
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类似说明 - 74AHCT257D |
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