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# chap04 - ECEn/CS 224 Chapter 4 Homework Solutions 4.1...

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Last updated: 9/23/2006 ECEn/CS 224 Chapter 4 Homework Solutions 4.1 Create an inverter (NOT gate) using a single 2-input NAND gate. 4.4 Create and AND gate using only NOR gates. 4.5 Draw the gate-level schematic for this equation: F = ( AB' + A'B ) ' . Use only AND, OR, and NOT gates. IN OUT 1 or IN OUT I 1 I 2 OUT A B F

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Last updated: 9/23/2006 4.6 Write the boolean equation for the circuit shown in Figure 4.27. Write it using parentheses so that the structure of the equation exactly matches the structure of the circuit. Q = (A+DE)(D+D’F) 4.8 Write a 2-level AND-OR equation for the circuit shown in Figure 4.27. This will require that you do some algebraic manipulations first. Draw the resulting circuit. Q = (A+DE)(D+D’F) = (A+DE)(D+F) = AD + AF + DDE + DEF = AD + AF + DE + DEF = AD + AF + DE(1+F) = AD + AF + DE A D A F E D Q
Last updated: 9/23/2006 4.11 Write the truth table for the circuit shown in Figure 4.28(c). A B C F 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 0 4.15 Evaluate the circuit of Figure 4.27 using the metrics of Table 4.1 (see text book).

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