TL/F/9491
54F/74F181
4-Bit
Arithmetic
Logic
Unit
August 1995
54F/74F181
4-Bit Arithmetic Logic Unit
General Description
The ’F181 is a 4-bit Arithmetic logic Unit (ALU) which can
perform all the possible 16 logic operations on two variables
and a variety of arithmetic operations. It is 40% faster than
the Schottky ALU and only consumes 30% as much power.
Features
Y
Full lookahead for high-speed arithmetic operation on
long words
Y
Guaranteed 4000V minimum ESD protection
Commercial Military
Package
Package Description
Number
74F181PC N24A 24-Lead (0.600 Wide) Molded Dual-In-Line
74F181SPC N24C 24-Lead (0.300 Wide) Molded Dual-In-Line
54F181DM (Note 2) J24A 24-Lead Ceramic Dual-In-Line
54F181SDM (Note 2) J24F 24-Lead (0.300 ) Ceramic Dual-In-Line
74F181SC (Note 1) M24B 24-Lead (0.300 ) Molded Small Outline, JEDEC
54F181FM (Note 2) W24C 24-Lead Cerpack
54F181LM (Note 2) E28A 24-Lead Ceramic Leadless Chip Carrier,Type C
Note 1: Devices also available in 13 reel. Use suffix e SCX.
Note 2: Military grade device with environmental and burn-in processing. Use suffix e DMQB, FMQB and LMQB.
Connection Diagrams
Pin Assignment
for DIP, SOIC and Flatpak
TL/F/9491–1
Pin Assignment
for LCC
TL/F/9491–2
TRI-STATE is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.