The input waveforms shown in Fig. 3(b) are applied to the inputs of the 74HC42 BCD-to-Decimal Decoder. Neatly sketch the output waveforms. Use the attached answer sheet for Q3(b)(iii) for completing the sketch.

Electric Motor Control
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ISBN:9781133702818
Author:Herman
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Chapter22: Sequence Control
Section: Chapter Questions
Problem 6SQ: Draw a symbol for a solid-state logic element AND.
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Please answer only part 3

(b)
Answer each of the following for the BCD-to-decimal decoder shown in Fig. 3(b):
(i)
Briefly explain the function of a BCD-to-decimal decoder.
(ii)
What do the inversion bubbles on the IC output terminals mean?
(iii) The input waveforms shown in Fig. 3(b) are applied to the inputs of the 74HC42
BCD-to-Decimal Decoder. Neatly sketch the output waveforms. Use the attached
answer sheet for Q3(b)(iii) for completing the sketch.
BCD/DEC
Ao
2
Ag -
A
3
Az
4
8.
Fig. 3(b)
74HC42
4S6 7
Transcribed Image Text:(b) Answer each of the following for the BCD-to-decimal decoder shown in Fig. 3(b): (i) Briefly explain the function of a BCD-to-decimal decoder. (ii) What do the inversion bubbles on the IC output terminals mean? (iii) The input waveforms shown in Fig. 3(b) are applied to the inputs of the 74HC42 BCD-to-Decimal Decoder. Neatly sketch the output waveforms. Use the attached answer sheet for Q3(b)(iii) for completing the sketch. BCD/DEC Ao 2 Ag - A 3 Az 4 8. Fig. 3(b) 74HC42 4S6 7
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