4-bit Full Adder: CD74HC283E

The CD74HC283E is a CMOS logic high-speed 4-bit binary Full Adder with fast-carry. It adds two 4-bit binary numbers and generates a carry-out bit if the sum exceeds 15.

Because of the symmetry of the add function, this device can be used with either all active-high operands (positive logic) or with all active-low operands (negative logic). When using positive logic the carry-in input must be tied low if there is no carry-in.

Datasheet: CD74HC283E

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