1. What is the function of an enable input on a multiplexer chip?
2. The expansion inputs to a comparator are used for expansion to a(n):
3. What do the mathematical symbols A < b and A > B mean?
4. A basic multiplexer principle can be demonstrated through the use of a:
5. How many inputs will a decimal-to-BCD encoder have?
6. A principle regarding most IC decoders is that when the correct input is present, the related output will switch:
7. What control signals may be necessary to operate a 1-line-to-16 line decoder?
8. One multiplexer can take the place of:
9. How many exclusive-NOR gates would be required for an 8-bit comparator circuit?
10. How many inputs are required for a 1-of-10 BCD decoder?
11. A BCD decoder will have how many rows in its truth table?
12. How many possible outputs would a decoder have with a 6-bit binary input?
13. Most demultiplexers facilitate which type of conversion?
14. The inputs/outputs of an analog multiplexer/demultiplexer are:
15. Why can a CMOS IC be used as both a multiplexer and a demultiplexer?
16. One application of a digital multiplexer is to facilitate:
17. The primary use for Gray code is:
18. Why is a demultiplexer called a data distributor?
19. What is the status of the inputs S0, S1, and S2 of the 74151 eight-line multiplexer in order for the output Y to be a copy of input I5?
20. One way to convert BCD to binary using the hardware approach is:
21. A microcontroller differs from a microprocessor in that it has several ________ ports and ________ built into its architecture, making it better suited for ________ applications.
22. How is an encoder different from a decoder?
23. Why is the Gray code more practical to use when coding the position of a rotating shaft?
24. For the following conditions on a 7485 magnitude comparator, what will be the state of each of the three outputs?
A0 = 0B0 = 1IA < B = 0 A1 = 1B1 = 0IA = B = 1 A2 = 1B2 = 0IA > B = 0 A3 = 0B3 = 0
25. When two or more inputs are active simultaneously, the process is called: