元器件交易网www.cecb2b.comSN74LS1518-InputMultiplexerThe TTL/MSI SN74LS151 is a high speed 8-input DigitalMultiplexer. It provides, in one package, the ability to select one bit ofdata from up to eight sources. The LS151 can be used as a universalfunction generator to generate any logic function of four variables.Both assertion and negation outputs are provided.•••••http://onsemi.comSchottky Process for High SpeedMultifunction CapabilityOn-Chip Select Logic DecodingFully Buffered Complementary OutputsInput Clamp Diodes Limit High Speed Termination EffectsLOWPOWERSCHOTTKYGUARANTEED OPERATING RANGESSymbolVCCTAIOHIOLParameterSupply VoltageOperating AmbientTemperature RangeOutput Current – HighOutput Current – LowMin4.750Typ5.025Max5.2570–0.48.0UnitV°CmAmA161PLASTICN SUFFIXCASE 648161SOICD SUFFIXCASE 751BORDERING INFORMATIONDeviceSN74LS151NSN74LS151DPackage16 Pin DIP16 PinShipping2000 Units/Box2500/Tape & Reel© Semiconductor Components Industries, LLC, 19991December, 1999 – Rev. 6Publication Order Number:SN74LS151/D元器件交易网www.cecb2b.comSN74LS151CONNECTION DIAGRAM DIP (TOP VIEW)VCC16I415I514I613I712S011S110S291I32I23I14I05Z6Z7E8GNDLOADING(Note a)PIN NAMESS0 – S2EI0 – I7ZZSelect InputsEnable (Active LOW) InputMultiplexer InputsMultiplexer OutputComplementary Multiplexer OutputHIGH0.5 U.L.0.5 U.L.0.5 U.L.10 U.L.10 U.L.LOW0.25 U.L.0.25 U.L.0.25 U.L.5 U.L.5 U.L.NOTES:a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.b) The Output LOW drive factor is 5 U.L. for Commercial (74) Temperature Ranges.LOGIC SYMBOL7432115141312EI0I1I2I3I4I5I6I7S0S1S2ZZ6511109VCC = PIN 16GND = PIN 8http://onsemi.com2元器件交易网www.cecb2b.comSN74LS151LOGIC DIAGRAMI0S2S1S0E9101174I13I22I31I415I514I613I712VCC = PIN 16GND = PIN 8 = PIN NUMBERS65ZZFUNCTIONAL DESCRIPTIONThe LS151 is a logical implementation of a single pole,8-position switch with the switch position controlled by thestate of three Select inputs, S0, S1, S2. Both assertion andnegation outputs are provided. The Enable input (E) is activeLOW. When it is not activated, the negation output is HIGHand the assertion output is LOW regardless of all otherinputs. The logic function provided at the output is:The LS151 provides the ability, in one package, to selectfrom eight sources of data or control information. By propermanipulation of the inputs, the LS151 can provide any logicfunction of four variables and its negation.Z = E ⋅(I0 ⋅ S0 ⋅ S1 ⋅ S2 + ⋅ I1 ⋅ S0 ⋅ S1 ⋅ S2 + I2 ⋅ S0 ⋅ S1 ⋅S2+ I3 ⋅ S0 ⋅ S1 ⋅ S2 + I4 ⋅ S0 ⋅ S1 ⋅S2 + I5 ⋅ S0 ⋅ S1 ⋅ S2 + I6 ⋅S0 ⋅ S1 ⋅ S2 + I7 ⋅S0 ⋅ S1 ⋅ S2).TRUTH TABLEEHLLLLLLLLLLLLLLLLS2XLLLLLLLLHHHHHHHHS1XLLLLHHHHLLLLHHHHS0XLLHHLLHHLLHHLLHHI0XLHXXXXXXXXXXXXXXI1XXXLHXXXXXXXXXXXXI2XXXXXLHXXXXXXXXXXI3XXXXXXXLHXXXXXXXXI4XXXXXXXXXLHXXXXXXI5XXXXXXXXXXXLHXXXXI6XXXXXXXXXXXXXLHXXI7XXXXXXXXXXXXXXXLHZHHLHLHLHLHLHLHLHLZLLHLHLHLHLHLHLHLHH = HIGH Voltage LevelL = LOW Voltage LevelX = Don’t Carehttp://onsemi.com3元器件交易网www.cecb2b.comSN74LS151DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)LimitsSymbolVIHVILVIKVOHParameterInput HIGH VoltageInput LOW VoltageInput Clamp Diode VoltageOutput HIGH Voltage2.7–0.653.50.250.35InputHIGHCurrentInput HIGH CurrentInput LOW CurrentShort Circuit Current (Note 1)Power Supply Current–200.40.5200.1–0.4–10010Min2.00.8–1.5TypMaxUnitVVVVVVµAmAmAmAmATest ConditionsGuaranteed Input HIGH Voltage forAll InputsGuaranteed Input LOW Voltage forAll InputsVCC = MIN, IIN = –18 mAVCC = MIN, IOH = MAX, VIN = VIHor VIL per Truth TableIOL = 4.0 mAIOL = 8.0 mAVCC = VCC MIN,VIN = VVIL or VorVIHper Truth TableVOLOOutputLOWVoltageOutput LOW VoltageIIHIILIOSICCVCC = MAX, VIN = 2.7 VVCC = MAX, VIN = 7.0 VVCC = MAX, VIN = 0.4 VVCC = MAXVCC = MAXNote 1: Not more than one output should be shorted at a time, nor for more than 1 second.AC CHARACTERISTICS (TA = 25°C)LimitsSymboltPLHtPHLtPLHtPHLtPLHtPHLtPLHtPHLtPLHtPHLtPLHtPHLParameterPropagation DelaySelect to Output ZPropagation DelaySelect to Output ZPropagation DelayEnable to Output ZPropagation DelayEnable to Output ZPropagation DelayData to Output ZPropagation DelayData to Output ZMinTyp271814202620151820161312Max433023324232243032262120UnitnsnsnsnsnsnsTest ConditionsVCC = 5.0 VCL = 15 pFAC WAVEFORMSVIN1.3 VtPHL1.3 VtPLH1.3 VVIN1.3 VtPHLtPLH1.3 VVOUT1.3 VVOUT1.3 V1.3 VFigure 1. Figure 2. http://onsemi.com4元器件交易网www.cecb2b.comSN74LS151PACKAGE DIMENSIONSN SUFFIXPLASTIC PACKAGECASE 648–08ISSUE R–A–169NOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: INCH.3.DIMENSION L TO CENTER OF LEADS WHENFORMED PARALLEL.4.DIMENSION B DOES NOT INCLUDE MOLD FLASH.5.ROUNDED CORNERS OPTIONAL.DIMABCDFGHJKLMSINCHESMILLIMETERSMINMAXMINMAX0.7400.77018.8019.550.2500.2706.356.850.1450.1753.694.440.0150.0210.390.530.0400.701.021.770.100 BSC2.54 BSC0.050 BSC1.27 BSC0.0080.0150.210.380.1100.1302.803.300.2950.3057.507.740 10 0 10 ____0.0200.0400.511.01B18FSCL–T–HKGD16 PLSEATINGPLANEJTAMM0.25 (0.010)Mhttp://onsemi.com5元器件交易网www.cecb2b.comSN74LS151PACKAGE DIMENSIONSD SUFFIXPLASTIC SOIC PACKAGECASE 751B–05ISSUE J–A–NOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSIONS A AND B DO NOT INCLUDEMOLD PROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 (0.006)PER SIDE.5.DIMENSION D DOES NOT INCLUDE DAMBARPROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 (0.005) TOTALIN EXCESS OF THE D DIMENSION ATMAXIMUM MATERIAL CONDITION.MILLIMETERSINCHESMINMAXMINMAX9.8010.000.3860.3933.804.000.1500.1571.351.750.0540.0680.350.490.0140.0190.401.250.0160.0491.27 BSC0.050 BSC0.190.250.0080.0090.100.250.0040.0090 7 0 7 ____5.806.200.2290.2440.250.500.0100.019169–B–18P8 PL0.25 (0.010)MBSGFKC–T–SEATINGPLANERX 45_MD16 PLMJ0.25 (0.010)TBSASDIMABCDFGJKMPRhttp://onsemi.com6元器件交易网www.cecb2b.comSN74LS151Noteshttp://onsemi.com7元器件交易网www.cecb2b.com
SN74LS151
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