Parity Circuits

BCD-to-excess-3

Built 4-Input XOR Gate

Comparator(1 and 2 bit)

Excess 3 to BCD

74138

multiplexer

Excess 3 to BCD

8:1 Mux using Logic Gates

ADDERS AND SUBTRACTORS

4 BIT BCD ADDER

1 bit comparator

Half Adder ,Full adder , Half Subtractor and Full Subtractor

PLEXER

1:8 DEMUX INTERNAL GATE DESIGN

Half Subtractor

EXPERIMENT 1

1:8 DEMUX INTERNAL GATE DESIGN

PLEXER

EXPERIMENT 1

1 bit comparator

2 bit comparator using basic gates

Binary -to -Gray, Gray -to -Binary code converte