Homework SourseTCO 5 View a datasheet function table for a 74151 device Usi
D1 D4 None of the above |
Solution
1.View a datasheet function table for a 74151 device. Using Quartus pin names, assume the chip is enabled and C = 1, B = 0, and A = 0. Which data input appears on output Y?
Y=D4
Question 3.3. (TCO 5) View a datasheet function table for a 74151 device. Which is the enable input pin name(s), and which is the active level of the enable input pin(s)?
Ans: GN, which is active high.
Question 4.4. (TCO 5) View a datasheet function table for a 74151 device. Data are applied to D4, the device is enabled, and the select lines are set to select D4. Which output will have an inverted version of D4?
Ans:WN
ANS:
Y = 1, because the select lines indicate that D3 should be selected.
Question 14.14. (TCO 5) Download the datasheet from www.ti.com for the 74LS151. Match the Quartus input/output pin names on the left with the pin numbers on the right.
PIN14-D5
PIN11-A
PIN3-D1
PIN6-WN
Question 13.13. (TCO 5) Download the datasheet from www.ti.com for the 74LS138. Match the Quartus input/output pin names on the left with the pin numbers on the right
PIN13-Y2
PIN7-Y7
PIN3-C
PIN5- G2BN
View a datasheet function table for a 74138 device, which can be configured as a demultiplexer. Using Quartus pin names, assume the chip is enabled, the data input is connected to G2AN, C = 1, B = 0, and A = 0. Which output has the data?
Y1N
| Question 5.5. (TCO 5) View a datasheet function table for a 74151 device. The inputs to the 74151 are C = 0, B = 1, A = 1, D7 = 0, D6 = 0, D5 = 1, D4 = 1, D3 = 1, D2 = 1, D1 = 0, D0 = 1, and GN = 0. Which is the value of Y and why? (Points : 1) |
