{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw4 - CSE2300W Homework 4 1(10 points Assuming 74HCT283s...

This preview shows pages 1–2. Sign up to view the full content.

CSE2300W Homework 4 1. (10 points) Assuming 74HCT283’s are used, find the critical path of the circuit in Figure 6-89 (on page 482). What’s the delay on the critical path? Table 6-3 on page 367 lists the propagation delay of many chips, including 74HCT283. The implementation of 74x283 is shown in Figure 6-87 on page 480. 2. (20 points) Show how to build each of the following single- or multiple- output logic functions using one or more 74x138 or 74x139 binary decoders and NAND gates. (Hint: Look at the implementation of a decoder and think about how it is related to minterms.) a) F = Σ A,B,C (1, 3, 4, 5, 7) b) F = Σ A,B,C,D (0, 2, 8, 12, 14) c) F = Σ A,B,C,D (2, 3, 4, 5, 8, 10, 12, 14) d) F = Σ A,B,C (0, 2, 4, 5) and G = Σ A,B,C (1, 2, 4, 6) 3. (5 points) Implement F = X Z + X Y with the following types of three-state buffer and a pull-up resistor (if you think it is necessary). Use no more than four three-state buffers. 4. (10 points) Suppose that you are asked to design a new component, a decimal decoder

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

hw4 - CSE2300W Homework 4 1(10 points Assuming 74HCT283s...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online