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Logic Families and Their Characteristics - Technical MCQs

Q1:

What should be done to unused inputs on TTL gates?

A They should be left disconnected so as not to produce a load on any of the other circuits and to minimize power loading on the voltage source.

B All unused gates should be connected together and tied to V through a 1 k resistor.

C All unused inputs should be connected to an unused output; this will ensure compatible loading on both the unused inputs and unused outputs.

D Unused AND and NAND inputs should be tied to VCC through a 1 k resistor; unused OR and NOR inputs should be grounded.

ANS:D - Unused AND and NAND inputs should be tied to VCC through a 1 k resistor; unused OR and NOR inputs should be grounded.

No answer description is available.