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4-bit BCD separator with IC-7483
• The IC of the 4-bit binary adder (7483) can be used to perform the addition of BCD numbers.
• In this, if the output of 4- bit sum is not a valid BCD digit, or if carry C3 is generated, then the decimal 6 (0 1 1 0) will be added to the sum to obtain the correct result.
• The following figure (0) shows 4-bit Adder BCD.
• The BCD adder can be cascaded to add 1009 multi-digit numbers by connecting the carry of a stage to the carry in the next stage.