Question 3 Design a 4-bit combinational circuit that counts DOWN and UP. Counts 1 - 7 only. The first and the last input is 1111. Include the truth table, simplified equation, and decoder implementation. (15 pts)
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First, let's create the truth table for the 4-bit combinational circuit that counts down and up from 1 to 7: Inputs (A3, A2, A1, A0) | Outputs (D3, D2, D1, D0) 1111 | 1111 1110 | 1110 1101 | 1101 1100 Show more…
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