27. When is a level-shifter circuit needed in interfacing logic?
(a) A level shifter is always needed. (b) A level shifter is never needed. (c) when the supply voltages are the same (d) when the supply voltages are different
Answer
Answer : (d)
Explanation
Explanation : No answer description available for this question. Let us discuss.
555555555519. The problem of interfacing IC logic families that have different supply voltages (VCC's) can be solved by using a: (a) level-shifter (b) tristate shifter (c) decoupling capacitor (d) pull-down resistor