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54LS244FN/a400avaiOctal TRI-STATE Buffer/Line Driver/Line Receiver
54LS244TIN/a50avaiOctal TRI-STATE Buffer/Line Driver/Line Receiver


54LS244 ,Octal TRI-STATE Buffer/Line Driver/Line ReceiverFeaturesYTypical power dissipation (enabled)YTRI-STATE outputs drive bus lines directlyInverting 13 ..
54LS244 ,Octal TRI-STATE Buffer/Line Driver/Line ReceiverFeaturesYTypical power dissipation (enabled)YTRI-STATE outputs drive bus lines directlyInverting 13 ..
54LS244DMQB ,Octal TRI-STATEE Buffers/Line Drivers/Line ReceiversFeaturesYTypical power dissipation (enabled)YTRI-STATE outputs drive bus lines directlyInverting 13 ..
54LS244DMQB ,Octal TRI-STATEE Buffers/Line Drivers/Line ReceiversFeaturesYTypical power dissipation (enabled)YTRI-STATE outputs drive bus lines directlyInverting 13 ..
54LS245 ,Octal TRI-STATE Bus TransceiverFeatures YAlternate Military/Aerospace device (54LS245) is avail-YBi-Directional bus transceiver in ..
54LS245 ,Octal TRI-STATE Bus Transceiver54LS245/DM54LS245/DM74LS245TRI-STATEOctalBusTransceiverJune198954LS245/DM54LS245/DM74LS245TRI-STATE ..
7001 ,900 MHz THREE GAIN LEVEL LNAapplications. STB7001 is housed in asmall industry-standard MSOP8 surface mountpackage, requiring v ..
7002 ,1.8GHz THREE GAIN LEVEL LNASTB70021.8GHz THREE GAIN LEVEL LNA• FULLY INTEGRATED 1.8GHz LNA• THREE GAIN LEVELS (0dB, 18dB, 26dB ..
7016X5 , SMT LEDs 1208 Package Size
70543-0001 , 2.54mm (.100") Pitch SL™ Header, Single Row, Vertical, .120" Pocket, Shrouded, 2Circuits, 0.38μm (15μ") Gold (Au) Selective Plating, Tin (Sn) PC Tail Plating
70553-0106 , 2.54mm (.100") Pitch SL™ Header, Low Profile, Single Row, Right Angle, .120" PocketShrouded, 2 Circuits, 0.76μm (30μ") Gold (Au) Selective Plating, Tin (Sn) PC Tail
70CRU02 ,200V 35A Ultra-Fast Doubler Diode in a TO-218 packageapplications in which the switching energy is designed not to bepredominant portion of the total en ..


54LS244
Octal TRI-STATE Buffer/Line Driver/Line Receiver
TL/F/8442
54LS244/DM74LS244
Octal
TRI-STATE
Buffers/Line
Drivers/Line
Receivers
August 1989
54LS244/DM74LS244 Octal TRI-STATEÉ
Buffers/Line Drivers/Line Receivers
General Description
These buffers/line driversare designedto improve boththe
performanceandPC board densityof TRI-STATE buffers/
drivers employedas memory-address drivers, clock drivers,
and bus-oriented transmitters/receivers. Featuring 400mV hysteresisat eachlow current PNP dataline input, they
provide improved noise rejection and high fanout outputs
andcanbe usedto drive terminated lines downto 133X.
Features TRI-STATE outputs drivebus lines directly PNP inputs reduceDC loadingonbus lines Hysteresisat data inputs improves noise margins TypicalIOL (sink current)
54LS 12mA
74LS 24mA TypicalIOH (source current)
54LS b12mA
74LS b15mA Typical propagation delay times
Inverting 10.5ns
Noninverting 12ns Typical enable/disable time18ns Typical power dissipation (enabled)
Inverting 130 mW
Noninverting 135 mW
Connection Diagram
Dual-In-Line Package
TL/F/8442–1
OrderNumber54LS244DMQB, 54LS244FMQB,54LS244LMQB,
DM74LS244WM orDM74LS244N
See NSPackage Number E20A, J20A, M20B, N20AorW20A
Function Table
Inputs Output AY L H ZeLow Logic LeveleHigh Logic Levele EitherLoworHigh Logic Levele HighImpedance
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1995National SemiconductorCorporation RRD-B30M105/PrintedinU.S.A.
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