1. A combinational circuit adds either a 1 or 2 to a 4-bit binary number A. Assume that the inputs bb A3, A2, A1, A0 represent the 4-bit binary number. Another input is a control signal C. The circuit has outputs assumed to be X3, X2, X1 and Xo, which represent the 4-bit number X. When C=0, X=A+1 and when C=1, X=A+2. Assume that the inputs for which X > (1111)2 will never occur. Show the design steps in detail including truth tables, K-Maps, logic equation minimisation. Finally, design this circuit using only NAND gates and inverters .

1. A combinational circuit adds either a 1 or 2 to a 4-bit binary number A. Assume that the inputs bb A3, A2, A1, A0 represent the 4-bit binary number. Another input is a control signal C. The circuit has outputs assumed to be X3, X2, X1 and Xo, which represent the 4-bit number X. When C=0, X=A+1 and when C=1, X=A+2. Assume that the inputs for which X > (1111)2 will never occur. Show the design steps in detail including truth tables, K-Maps, logic equation minimisation. Finally, design this circuit using only NAND gates and inverters .

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter13: Magnetic Induction

Section: Chapter Questions

Problem 1PA

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