Totem-pole outputs ________ be connected ________ because ________. can, in para

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Question
Totem-pole outputs ________ be connected ________ because ________.
Options
A. can, in parallel, sometimes higher current is required
B. cannot, together, if the outputs are in opposite states excessively high currents can damage one or both devices
C. should, in series, certain applications may require higher output voltage
D. can, together, together they can handle larger load currents and higher output voltages

Correct Answer

cannot, together, if the outputs are in opposite states excessively high currents can damage one or both devices

Logic Families and Their Characteristics problems

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1. Why must CMOS devices be handled with care?
Options
A. so they don't get dirty
B. because they break easily
C. because they can be damaged by static electricity discharge

2. What is unique about TTL devices such as the 74SXX?
Options
A. These devices use Schottky transistors and diodes to prevent them from going into saturation; this results in faster turn-on and turn-off times, which translates into higher frequency operation.
B. The gate transistors are silicon (S), and the gates therefore have lower values of leakage current.
C. The S denotes the fact that a single gate is present in the IC rather than the usual package of 2?6 gates.
D. The S denotes a slow version of the device, which is a consequence of its higher power rating.

3. From the following specifications determine the fan-out for the logic family.
Options
A. HIGH state is 16, LOW state is 8
B. HIGH state is 8, LOW state is 16
C. HIGH state is 4, LOW state is 8
D. HIGH state is 8, LOW state is 4

5. As a general rule, the lower the value of the speed?power product, the better the device because of its:
Options
A. long propagation delay and high power consumption
B. long propagation delay and low power consumption

6. A TTL totem-pole circuit is designed so that the output transistors:
Options
A. are always on together
B. provide linear phase splitting
C. provide voltage regulation
D. are never on together

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