8. Power OFF. Wire the NAND logic circuit you drew in step 6. Use four input swi

Question

8. Power OFF. Wire the NAND logic circuit you drew in step 6. Use four input switches; the 7404, 7410, and 7420 ICs; and an LED indicator-light assembly. Pin diagrams are in Appendix A. 9. Power ON. Operate input switches A, B, C, and D according to the input side of Table 4-5. Record the outputs in the NAND Circuit column of Table 4-5 10. Power OFF. Take down the NAND circuit. 11. Mount the 74150 IC and connect power (Vcc and GND). 12. Wire the 74150 data selector as shown in Fig. 4-16, Lab Experiment 4-4 Omit the LED output indicator W 13. Connect data inputs 0 to 15 to logical 1 or 0 according to column Y in Table 4-5 (logical 0 GND, logical 1 = +5 V). 14. Enable input to logical 0. 15. Power ON. Operate data select input switches D, C, B, and A according to the truth table in Table 4-5. Record the outputs in the Data Selector Circuit column, Table 4-5 16. Power OFF. Take down the circuit and return all equipment to its proper place. QUESTIONS Complete questions 1 to 8. 1. This logic problem was solved faster and cheaper using a(n) 1. a. Data selector b. AND-OR logic gate circuit c. NAND logic gate circuit 2. If a data input on a 74150 data selector were left disconnected, that input 3. To save switches, data inputs (74150) at a logical 0 are connected to 4. To save switches, data inputs (74150) at a logical 1 are connected to 5. Inside the single 74150 IC are 2. would be considered to be at a logical 3. 4. (Refer to the manufac- 5. turer's data manual.) a. 3 to 4 gates b. 10 to 15 gates c. 25 or more gates 6. Refer to Fig. 4-16. If the strobe or enable input is HIGH, the 74150 IC is 6. (disabled, enabled) and output W will be (HIGH, LOW). 7. Refer to Fig. 4-16. The output W of the 74150 IC is a (negated, true) output. 7. 8. Refer to Fig. 4-16. The 7404 inverter is used in this circuit to display the (negated, true) output at output indicator Y 8.

Explanation / Answer

1)

a) Data Selector

The data selector can handle several inputs as it has gates connected in it.

2)

It is considered as logical 1

3) All logical 0 is connected to ground.

4) All logic 1 is connected to 5V.

5) 74150 IC has

C) 25 or more gates.

Related Questions

Navigate

• Browse (All)
• Browse 8
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.