54F 74F251A 8-Input Multiplexer with TRI-STATE Outputs
November 1994
54F 74F251A
8-Input Multiplexer with TRI-STATE Outputs
General Description
The 鈥橣251A is a high-speed 8-input digital multiplexer It pro-
vides in one package the ability to select one bit of data
from up to eight sources It can be used as a universal func-
tion generator to generate any logic function of four vari-
ables Both assertion and negation outputs are provided
Features
Y
Y
Y
Multifunctional capability
On-chip select logic decoding
Inverting and non-inverting TRI-STATE outputs
Commercial
74F251APC
Military
Package
Number
N16E
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead (0 300 Wide) Molded Small Outline EIAJ
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
54F251ADM (Note 2)
74F251ASC (Note 1)
74F251ASJ (Note 1)
54F251AFM (Note 2)
54F251ALL (Note 2)
J16A
M16A
M16D
W16A
E20A
Note 1
Devices also available in 13 reel Use suffix
e
SCX and SJX
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Logic Symbols
Connection Diagrams
Pin Assignment for
DIP SOIC and Flatpak
Pin Assignment
for LCC
TL F 9504鈥?
IEEE IEC
TL F 9504 鈥?1
TL F 9504 鈥?2
TL F 9504鈥?
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9504
RRD-B30M75 Printed in U S A