Integrated Circuit Technologies MCQs

Question 1

Which equation is correct?

Accepted Answer

VNH = VOH(min) – VIH(min)

Answer

VNL = VIL(max) + VOL(max)

Answer

VNH = VOH(min) + VIH(min)

Answer

VNL = VOH(min) – VIH(min)

Question 2

The active switching element used in all TTL circuits is the ________.

Accepted Answer

bipolar junction transistor (BJT)

Answer

field-effect transistor (FET)

Answer

metal-oxide semiconductor field-effect transistor (MOSFET)

Answer

unijunction transistor (UJ)

Question 3

An open-collector output requires ________.

Accepted Answer

a pull-up resistor

Answer

a pull-down resistor

Answer

no output resistor

Answer

an output resistor

Question 4

Most TTL logic used today is some form of ________.

Accepted Answer

Schottky TTL

Answer

tristate TTL

Answer

low-power TTL

Answer

open-collector TTL

Question 5

A standard TTL circuit with a totem-pole output can sink, in the LOW state (IOL(max)), ________.

Accepted Answer

16 mA

Answer

20 mA

Answer

16 A

Answer

20 A

Question 6

One output structure of a TTL gate is often referred to as a ________.

Accepted Answer

totem-pole arrangement

Answer

diode arrangement

Answer

JBT arrangement

Answer

base, emitter, collector arrangement

Question 7

It is best not to leave unused TTL inputs unconnected (open) because of TTL's ________.

Accepted Answer

noise sensitivity

Answer

low-current requirement

Answer

open-collector outputs

Answer

tristate construction

Question 8

Which is not an output state for tristate logic?

Accepted Answer

Low-Z

Answer

HIGH

Answer

LOW

Answer

High-Z

Question 9

TTL is alive and well, particularly in ________.

Accepted Answer

educational applications

Answer

industrial applications

Answer

military applications

Answer

commercial applications