5962-8968901EA ,Quad 2-Input Multiplexer with TRI-STATE OutputsFunctional DescriptionThe ’AC/’ACT257 is quad 2-input multiplexer withPin Assignment forTRI-STATE o ..
5962-8969701XA ,16-Bit Voltage Output CMOS DACCHARACTERISTICSto –15.75 V; V = +4.75 V to +5.25 V; R connected to 0 V.)CC INLimit atT to TMIN MAXP ..
5962-8970401CA ,High Speed CMOS Logic 8-Bit Serial-In/Parallel-Out Shift RegisterCD54HC164, CD74HC164,CD54HCT164, CD74HCT164Data sheet acquired from Harris SemiconductorSCHS155CHig ..
5962-89736012A ,Quad 2-Input OR GateFeaturesn I reduced by 50%CCLogic SymbolIEEE/IECDS100984-1Connection DiagramsPin Assignment for DIP ..
5962-8974201RA ,High Speed CMOS Logic Octal Positive-Edge Triggered D-Type Flip-Flops with 3-State OutputsMaximum Ratings Thermal InformationoDC Supply Voltage, V . . . . . . . . . . . . . . . . . . . . . ..
5962-8974301EA ,High Speed CMOS Logic Hex D-Type Flip-Flops with ResetCD54HC174, CD74HC174,CD54HCT174, CD74HCT174Data sheet acquired from Harris SemiconductorSCHS159CHig ..
7438 ,Quad 2-Input NAND Buffers with Open-Collector OutputsGeneral Description Pull-Up Resistor EquationsThis device contains four independent gates each of w ..
7438SJ ,Quad 2-Input NAND Buffers with Open-Collector OutputsGeneral Description Pull-Up Resistor EquationsThis device contains four independent gates each of w ..
744030100 , POWER-INDUCTOR WE-TPC
744031002 , POWER-CHOKE WE-TPC
744031100 , POWER-CHOKE WE-TPC
744043100 , POWER-CHOKE WE-TPC
5962-8968901EA
Quad 2-Input Multiplexer with TRI-STATE Outputs
54AC257• 54ACT257
Quad 2-Input Multiplexer with TRI-STATE® Outputs
General DescriptionThe ’AC/’ACT257isa quad 2-input multiplexer with
TRI-STATE outputs. Fourbitsof data fromtwo sourcescan selected usinga Common Data Select input. The four
outputs presentthe selected dataintrue (noninverted) form.
The outputs maybe switchedtoa high impedance stateby
placinga logic HIGHonthe commonOutput Enable (OE)in-
put, allowing the outputsto interface directly with
bus-oriented systems.
FeaturesICCandIOZ reducedby 50% Multiplexer expansionby tying outputs together Noninverting TRI-STATE outputs Outputs source/sink24mA ’ACT257has TTL-compatible inputs Standard Military Drawing (SMD) ’AC257: 5962-88703 ’ACT257: 5962-89689
Logic Symbols
Pin Names Description Common Data Select Input TRI-STATE Output Enable Input
I0a–I0d Data Inputs from Source0
I1a–I1d Data Inputs from Source1
Za–Zd TRI-STATE Multiplexer Outputs
TRI-STATE®isa registeredtrademark ofNationalSemiconductorCorporation.
FACT™isatrademark ofFairchildSemiconductor Corporation.
DS100286-1
IEEE/IECDS100286-2
July 1998
54AC257
54ACT257
Quad
2-Input
Multiplexer
with
TRI-ST
Outputs©1998NationalSemiconductor Corporation DS100286
