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1. What advantage does the 74LSXX series device have over standard TTL?
2. What advantage does the 74LXX series device have over standard TTL?
3. What advantage does the 74SXX series device have over standard TTL?
4. When a CMOS gate output connects to a TTL gate, which circuit is needed?
5. When a TTL gate output connects to a CMOS gate, what must be added to the circuit?
6. When interfacing CMOS to TTL what potential problem must be overcome?
7. When the outputs of several open-collector TTL gates are connected together, the gate outputs
8. When the outputs of several standard TTL gates are connected together, the gate outputs
9. Which alteration is made in the manufacture of a TTL gate to create an open-collector output?
10. Which of the following are not characteristics of TTL logic gates?
11. Which of the following input levels would not be a valid HIGH for a TTL gate?
12. Which of the following is a concern when using CMOS type devices?
13. Which of the following is a special type of transistor used in the TTL series to improve speed characteristics?
14. When setting the voltage for an external device that must interface with an FPGA, you must change the value of
15. Which of the following digital IC logic families is most susceptible to static discharge?
16. Which of the following is not a common logic family used today?
17. Which of the following is not a solution to interface problems between CMOS and TTL?
18. Which of the following levels would not be a valid LOW for a TTL gate?
19. Which of the following output levels would be a valid HIGH for a TTL gate?
20. Which of the following output levels would not be a valid LOW for a TTL gate?
21. Which potential problem must be overcome when interfacing TTL to CMOS?
22. Which specialized device distinguishes the 74LSXX circuits from standard 74XX circuits?
23. A common means for comparing the propagation delays and the power dissipation of various logic gates is the
24. A family of logic devices designed for extremely high speed applications is called
25. An invalid input voltage for a TTL logic gate would be
26. An open-collector TTL gate
27. An open-collector TTL gate
28. Each input on a TTL gate is connected to the transistors
29. Fan-out for a typical TTL gate is
30. In order to interface an FPGA with an external device, you must set the value of the
31. One advantage that MOSFET transistors have over bipolar transistors is
32. The 54XX TTL IC series is the military version and has
33. The abbreviated designation for input current with a HIGH input is
34. The abbreviated designation for input current with a LOW input is
35. The abbreviated designation for output current with a HIGH output is
36. The abbreviated designation for output current with a LOW output is
37. The abbreviated designator for a HIGH input voltage is
38. The abbreviated designator for a HIGH output voltage is
39. The abbreviated designator for a LOW input voltage is
40. The abbreviated designator for a LOW output voltage is
41. The abbreviation TTL means
42. The CMOS series that is pin compatible with the TTL family is the
43. The difference between VOH and VIH voltages is known as
44. The input transistor (Q 1) of a TTL gate acts like
45. The input transistor on a TTL circuit is unusual in that it has
46. The lower transistor of a totem-pole output is OFF when the gate output is
47. The lower transistor of a totem-pole output is saturated when the gate output is
48. The major advantage of CMOS logic circuits over TTL is
49. The major advantage of TTL logic circuits over CMOS is
50. The maximum current for a HIGH output on a standard TTL gate is
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