1- Show how to build each of the following logic functions using one or more 74x138 binary decoders and NAND gates. (Hint: Each realization should be equivalent to a sum of minterms.) (a) FΣx,y,z(2,5,7) (b) FIA,B,C(2,4,5,6,7) 2- Show how to build all four of the following functions using one 3-to-8 decoder with active-low outputs and four 2-input NAND gates: F1 X'Y' Z' + X. Y. Z' F2 . X Y Z+X'. Y. Z' F3 X Y Z' + X. Y'. Z F4 X Y' Z' + X' . Y. Z 3- Design a gate-level circuit 10-to-4 encoder with inputs in the 1-out-of-10 code and outputs in a code like normal BCD.

1- Show how to build each of the following logic functions using one or more 74x138 binary decoders and NAND gates. (Hint: Each realization should be equivalent to a sum of minterms.) (a) FΣx,y,z(2,5,7) (b) FIA,B,C(2,4,5,6,7) 2- Show how to build all four of the following functions using one 3-to-8 decoder with active-low outputs and four 2-input NAND gates: F1 X'Y' Z' + X. Y. Z' F2 . X Y Z+X'. Y. Z' F3 X Y Z' + X. Y'. Z F4 X Y' Z' + X' . Y. Z 3- Design a gate-level circuit 10-to-4 encoder with inputs in the 1-out-of-10 code and outputs in a code like normal BCD.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter22: Sequence Control

Section: Chapter Questions

Problem 6SQ: Draw a symbol for a solid-state logic element AND.

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