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EECE 256 Assignment 3

EECE 256 Assignment 3 - decimal digit in BCD to an...

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Electrical and Computer Engineering 23/08/2010 1 EECE 256 Assignment 3 1. Consider the combinational circuit in the figure below. a. Derive the Boolean expressions for T1 through T4. Derive outputs F1 and F2 as function of the four inputs. b. List the truth table (4 variables). Then list T1 through T4, F1 and F2. c. Use K-maps to simplify these expressions and show that they are equivalent to the ones obtained in (a). 2. Design a combinational circuit that converts a 4-bit gray code to a 4-bit binary number. Implement the circuit using exclusive-OR gates. 3. A BCD-to-seven-segment decoder is a combinational circuit that converts a
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Unformatted text preview: decimal digit in BCD to an appropriate code for the selection of segments in a display indicator used for displaying the decimal digit in a familiar form. The seven outputs of the decoder ( a, b, c, d, e, f, g ) select the corresponding segments in the display, as shown in Figure 3a. The numeric display chosen to represent the decimal digit is shown Figure 3b. Design this decoder using a minimum number of gates. The six invalid combinations should result in a blank display. 4. Question 4.2, 4.3b, 4.4a, 4.6a, 4.8, 4.13, 4.14 from your text book....
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