© 1999 Fairchild Semiconductor Corporation DS009491 www.fairchildsemi.com
April 1988
Revised July 1999
7
4F181 4-Bi
t Arit
hmeti
c

Lo
gic Unit
74F181
4-Bit Arithmetic Logic Unit
General Description
The 74F181 is a 4-bit Arithmetic logic Unit (ALU) which can
perform all the possible 16 logic operations on two vari-
ables and a variety of arithmetic operations. It is 40% faster
than the Schottky ALU and only consumes 30% as much
power.
Features
a73 Full lookahead for high-speed arithmetic operation on
long words

Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Active-HIGH Operands
Active-LOW Operands
IEEE/IEC
Connection Diagram
Order Number Package Number Package Description
74F181SC M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F181PC N24A 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.600 Wide
74F181SPC N24C 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide