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Concept drill

open collector

GATE Electronics & Communication · Logic Families · 1988-2003

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2003 PYQ

The output of the 74 series of TTL gates is taken from a BJT in

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1988 PYQ

Implement the function $$F=\left(\overline A+\overline B\right)\left(\overline C+\overline D\right)$$ using two open collector TTL 2-input NAND gates.

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