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74ACT38 数据表(PDF) 2 Page - Silicon Supplies |
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74ACT38 数据表(HTML) 2 Page - Silicon Supplies |
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2 / 5 page ![]() Page 2 of 5 www.siliconsupplies.com d Advanced CMOS TTL Input – 74ACT38 Rev 1.0 18/01/21 COORDINATES (mm) PAD FUNCTION X Y 1 1A 0.250 0.980 2 1B 0.100 0.820 3 1Y 0.100 0.580 4 2A 0.100 0.420 5 2B 0.100 0.140 6 2Y 0.270 0.100 7 GND 0.450 0.100 8 3Y 0.670 0.100 9 3A 0.790 0.140 10 3B 0.790 0.420 11 4Y 0.790 0.590 12 4A 0.790 0.820 13 4B 0.650 0.980 14 VCC 0.450 0.980 CONNECT CHIP BACK TO VCC OR FLOAT Pad Layout and Functions 1000µm (40 mils) 0,0 Logic Diagram 1A 1B 2A 2B 3A 3B 4A 4B 5 9 10 12 13 3 6 8 11 1Y 2Y 3Y 4Y 1 2 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Truth Table INPUTS OUTPUT A B Y L L H H L H L H Z Z Z L H = High level (steady state) L = Low level (steady state) Z = High Impedance state |
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