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74LS183D is a carry-save full adder which features an individual carry output from each bit for use in multiple-input to produce the true sum and true carry outputs

Function table
| Inputs | Outputs | |||
|---|---|---|---|---|
| Cn | ||||
| B | A | SUM | Cn+1 | |
| L |
L |
L |
L |
L |
| L |
L | H |
H |
L |
| L | H |
L |
H | L |
| L | H | H |
L |
H |
| H |
L |
L |
H | L |
| H |
L | H | L |
H |
| H |
H | L | L |
H |
| H |
H | H |
H |
H |
H = HIGH Level
L = LOW Level
X = Don't Care
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