Author Question: Why is it difficult to drive a light-emitting diode with a standard TTL gate? A) LED devices draw ... (Read 56 times)

nummyann · **on:** Jul 28, 2018

Why is it difficult to drive a light-emitting diode with a standard TTL gate?

A) LED devices draw too much current.
B) LED threshold voltage is too high.
C) LED devices are too slow for TTL switching speeds.
D) LED devices are CMOS logic.

Question 2

A flip-flop which operates according to military standards

A) has the same parameters as ICs that meet commercial standards.
B) requires closer regulation of voltage and temperature conditions.
C) allows greater range of voltage and temperature parameters.
D) allows greater temperature range but less voltage range.