7420 74LS20 4 input NAND Gate IC 7420 | 7400 ic Series
In this video, I've explained IC 74LS20. It is four input NAND Gate.
Pull down resistor:
• Pull up and pull down resistor
Required Components:
IC : 74ls20
Resistors : 220 Ω, 10 K
Miscellaneous : LED
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