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74LS164 数据表(PDF) 2 Page - Silicon Supplies |
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74LS164 数据表(HTML) 2 Page - Silicon Supplies |
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2 / 5 page ![]() Page 2 of 5 www.siliconsupplies.com d Low Power Schottky Logic – 74LS164 Rev 1.0 24/11/17 Logic Diagram 1880µm (74.02 mils) 0,0 COORDINATES (mm) PAD FUNCTION X Y 1 A 0.075 0.647 2 B 0.077 0.342 3 QA 0.203 0.075 4 QB 0.725 0.075 5 QC 1.091 0.075 6 QD 1.625 0.083 7 GND 1.691 0.331 8 CLK 1.693 0.745 9 CLR 1.691 1.504 10 QE 1.449 1.505 11 QF 1.091 1.503 12 QG 0.697 1.505 13 QH 0.085 1.412 14 VCC 0.077 0.885 CONNECT CHIP BACK TO GND OR FLOAT Pad Layout and Functions D = Data Input QAn - QGn = Data shift from preceding register on rising edge clock input 13 14 1 2 3 4 5 6 7 8 9 10 11 12 DIE ID Function Table INPUTS OUTPUTS CLR CLK A B QA QB … QH L H H H H X L ↑ ↑ ↑ X X H L X X X H X L L QA0 H L L L QB0 QAN QAN QAN L QH0 QGN QGN QGn |
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