74F251ASJ ,8-Input Multiplexer with TRI-STATE Outputs74F251A 8-Input Multiplexer with 3-STATE OutputsApril 1988Revised September 200074F251A8-Input Mult ..
74F251ASJ ,8-Input Multiplexer with TRI-STATE Outputs74F251A 8-Input Multiplexer with 3-STATE OutputsApril 1988Revised September 200074F251A8-Input Mult ..
74F251ASJ ,8-Input Multiplexer with TRI-STATE Outputs54F/74F251A8-InputMultiplexerwithTRI-STATEOutputsNovember199454F/74F251A8-InputMultiplexerwithTRI-S ..
74F253 ,Dual 4-Bit Multiplexer with TRI-STATE Outputs54F/74F253Dual4-InputMultiplexerwithTRI-STATEOutputsNovember199454F/74F253Dual4-InputMultiplexerwit ..
74F253PC ,Dual 4-Input Multiplexer with TRI-STATE OutputsFunctional Description Truth TableThis device contains two identical 4-input multiplexers withSelec ..
74F253SC ,Dual 4-Bit Multiplexer with 3-STATE OutputsFeaturesThe 74F253 is a dual 4-input multiplexer with 3-STATE out-
74F251ASJ
8-Input Multiplexer with TRI-STATE Outputs
TL/F/9504
54F/74F251A
8-Input
Multiplexer
with
TRI-STATE
Outputs
November 1994
54F/74F251A
8-Input Multiplexer with TRI-STATEÉ Outputs
General Description
The ’F251Aisa high-speed 8-input digital multiplexer.Itpro-
vides,in one package,the abilityto select onebitof data
fromupto eight sources.Itcanbe usedasa universal func-
tion generatorto generateany logic functionof four vari-
ables. Both assertionand negation outputsare provided.
Features Multifunctional capability On-chip select logic decoding Invertingand non-inverting TRI-STATE outputs
Commercial Military Package PackageDescriptionNumber
74F251APC N16E 16-Lead(0.300× Wide) Molded Dual-In-Line
54F251ADM (Note2) J16A 16-LeadCeramic Dual-In-Line
74F251ASC(Note1) M16A 16-Lead(0.150× Wide) Molded Small Outline, JEDEC
74F251ASJ (Note1) M16D 16-Lead(0.300× Wide) Molded Small Outline, EIAJ
54F251AFM (Note2) W16A 16-LeadCerpack
54F251ALL (Note2) E20A 20-LeadCeramic Leadless ChipCarrier, TypeC
Note1: Devicesalso availablein13×reel.Usesuffixe SCXandSJX.
Note2: Military grade devicewith environmentaland burn-in processing. Usesuffixe DMQB, FMQBand LMQB.
Logic Symbols Connection Diagrams
TL/F/9504–3
IEEE/IEC
TL/F/9504–5
Pin Assignmentfor
DIP,SOICand Flatpak
TL/F/9504–1
Pin Assignment
for LCC
TL/F/9504–2
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1995National SemiconductorCorporation RRD-B30M75/PrintedinU.S.A.
