June 1989
54283/DM74283
4-Bit Binary Full Adder (with Fast Carry)
General Description
The ’283 high speed 4-bit binary full adders with internal
carry lookahead accept two 4-bit binary words (A0–A3, B0–
B3) and a Carry input (C0). They generate the binary Sum
outputs (S0–S3) and the Carry output (C4) from the most
significant bit. They operate with either active HIGH or ac-
tive LOW operands (positive or negative logic).
Connection Diagram
Dual-In-Line Package
TL/F/9786–1
Order Number 54283DMQB, 54283FMQB or DM74283N
See NS Package Number J16A, N16E or W16A
Pin Names
Description
A0–A3
B0–B3
C0
A Operand Inputs
B Operand Inputs
Carry Input
S0–S3
C4
Sum Outputs
Carry Output
C
1995 National Semiconductor Corporation
TL/F/9786
RRD-B30M115/Printed in U. S. A.
NSC [ National Semiconductor ]
