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5962-9217601MRA
Quiet Series Octal Buffer/Line Driver w/TRI-STATE Outputs
54ACQ244• 54ACTQ244
Quiet Series Octal Buffer/Line Driver with TRI-STATE®
Outputs
General DescriptionThe ’ACQ/’ACTQ244isan octal buffer andline driverde-
signedtobe employedasa memory address driver, clock
driver andbus oriented transmitteror receiver which pro-
vides improvedPC board density. The ACQ/ACTQ utilizes
NSC Quiet Series technologyto guarantee quiet output
switching and improved dynamic threshold performance.
FACT Quiet Series™ features GTO™ output controlandun-
dershoot correctorin additiontoasplit groundbusfor supe-
rior performance.
FeaturesICCandIOZ reducedby 50% Guaranteed simultaneous switching noise leveland
dynamic threshold performance Improved latch-up immunity TRI-STATE outputs drivebus linesor buffer memory
address registers Outputs source/sink24mA Faster prop delays thanthe standard ’AC/’ACT2444kV minimum ESD immunity Standard Microcircuit Drawing (SMD) ’ACTQ244: 5962-92186 ’ACQ244: 5962-92176
Logic Symbol
Pin Names DescriptionOE1,OE2 TRI-STATE Output Enable Inputs
I0–I7 Inputs
O0–O7 Outputs
Connection DiagramsGTO™ isatrademark ofNationalSemiconductor Corporation.
TRI-STATE®isa registeredtrademark ofNationalSemiconductorCorporation.
FACT®isa registeredtrademark ofFairchildSemiconductor Corporation.
FACTQuiet Series™ isatrademarkofFairchild SemiconductorCorporation.
IEE/IECDS100236-1
Pin Assignment
forDIPand FlatpakDS100236-2
Pin Assignment
for LCCDS100236-3
August 1998
54ACQ244
54ACTQ244
Quiet
Series
Octal
Buffer/Line
Driver
with
TRI-ST
Outputs©1998NationalSemiconductor Corporation DS100236
