Design a bcd-to-decimal decoder using the unused combinations of the bcd code as don't-care conditions.

Design a bcd-to-decimal decoder using the unused combinations of the b

1.	Design a bcd-to-decimal decoder using the unused combinations of the bcd code as don't-care conditions.
Answer» C/HCT42 are BCD to decimal decoders. These decoders accept FOUR active HIGH BCD inputs and provide 10 mutually EXCLUSIVE active LOW outputs. The active LOW outputs facilitate addressing other MSI circuits with active LOW input enables. They are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.The logic design of the '42' ensures that all outputs are HIGH when BINARY codes greater than nine are applied to the inputs.The most significant input (A3) produces an useful inhibit function when the '42' is used as a 1-of-8 decoder. The A3 input can also be used as the data input in an 8-output demultiplexer application.FeaturesMutually exclusive outputs 1-of-8 DEMULTIPLEXING capability Outputs disabled for input codes above nine Output capability: standard ICC category: MSI Applications Driving LED displays Driving incandescent displays Driving fluorescent displays Driving LCD displays Driving gas discharge displays