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74HC00 数据表(PDF) 2 Page - Silicon Supplies |
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74HC00 数据表(HTML) 2 Page - Silicon Supplies |
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2 / 5 page ![]() Page 2 of 5 www.siliconsupplies.com d High Speed CMOS Logic – 74HC00 Rev 1.0 07/02/19 Pad Layout and Functions Logic Diagram Function Table INPUTS OUTPUT A B Y L L H H L H L H H H H L H = High level (steady state) L = Low level (steady state) 1A 1B 2A 2B 3A 3B 4A 4B 2 4 5 9 10 12 13 3 6 8 11 1Y 2Y 3Y 4Y 1 Pad 14 = VCC Pad 7 = GND COORDINATES (µm) PAD FUNCTION X Y 1 1A 230 95 2 1B 230 230 3 1Y 95 230 4 2A 0 230 5 2B -220 230 6 2Y -230 140 7 GND -230 45 8 3Y -230 -52 9 3A -230 -230 10 3B -95 -230 11 4Y 0 -230 12 4A 95 -230 13 4B 230 -230 14 VCC 230 -45 CONNECT CHIP BACK TO VCC OR FLOAT 610µm (24 mils) 0,0 5 6 7 8 9 10 11 12 13 14 1 2 3 4 |
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