4ĆBit Shifter
With 3ĆState Outputs
The MC74AC350/74ACT350 is a specialized multiplexer that accepts a 4-bitword and shifts it 0, 1, 2 or 3 places, as determined by two Select (S0, S1) inputs. For expansion to longer words, three linking inputs are provided for lower-orderbits; thus two packages can shift an 8-bit word, four packages a 16-bit word, etc. Shifting by more than three places is accomplished by paralleling the 3-state outputsof different packages and using the Output Enable (OE) inputs as a third Selectlevel. With appropriate interconnections, the ′AC/ACT350 can perform zero-backfill,sign-extend or end-around (barrel) shift functions.•Linking Inputs for Word Expansion
•3-State Outputs for Extending Shift Range
VCC16O015O114OE13O212O311S010S191I–32I–23I–14I05I16I27I38GNDTRUTH TABLEInputsOEHLLLLS1XLLHHS0XLHLHO0ZI0I–1I–2I–3OutputsO1ZI1I0I–1I–2O2ZI2I1I0I–1O3ZI3I2I1I0H = HIGH Voltage LevelL = LOW Voltage LevelX = Immaterial
FACT DATA
5-1
元器件交易网www.cecb2b.comMC74AC350 MC74ACT350FUNCTIONAL DESCRIPTIONThe MC74AC350/74ACT350 is operationally equivalent toa 4-input multiplexer with the inputs connected so that theselect code causes successive one-bit shifts of the data word.This internal connection makes it possible to perform shifts of0, 1, 2 or 3 places on words of any length.A 7-bit data word is introduced at the In inputs and is shiftedaccording to the code applied to the select inputs S0, S1.Outputs O0–O3 are 3-state, controlled by an active-LOWoutput enable (OE). When OE is LOW, data outputs will followselected data inputs; when HIGH, the data outputs will beforced to the high-impedance state. This feature allowsshifters to be cascaded on the same output lines or to acommon bus. The shift function can be logical, with zerospulled in at either or both ends of the shifting field; arithmetic,where the sign bit is repeated during a shift down; or endaround, where the data word forms a continuous loop.LOGIC EQUATIONSO0=S0 S1 I0+S0 S1 I–1+S0 S1 I–2+S0 S1 I–3O1=S0 S1 I1+S0 S1 I0+S0 S1 I–1+S0 S1 II–2O2=S0 S1 I2+S0 S1 I1+S0 S1 I0+S0 S1 I–1O3=S0 S1 I3+S0 S1 I2+S0 S1 I1+S0 S1 I0LOGIC DIAGRAMI–3I–2I–1I0I1I2I3S1S0OEO0O1O2O3FACT DATA5-2元器件交易网www.cecb2b.comMC74AC350 MC74ACT350APPLICATIONS16-Bit Shift-Up 0 to 3 Places, Zero Backfill0123456789101112131415GNDI–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y0S0S1OE012345S1LLHH6S0LHLHNO SHIFTSHIFT 1 PLACESHIFT 2 PLACESSHIFT 3 PLACES7891011121314158-Bit End Around Shift 0 to 7 Places01234567I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3S0S1S2S201234567S2LLLLHS1LLHHLS0LHLHLNO SHIFTSHIFT END AROUND 1SHIFT END AROUND 2SHIFT END AROUND 3SHIFT END AROUND 4S2HHHS1LHHS0HLHSHIFT END AROUND 5SHIFT END AROUND 6SHIFT END AROUND 7FACT DATA5-3元器件交易网www.cecb2b.comMC74AC350 MC74ACT35013-Bit Twos Complement Scaler121110987654321SI–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3I–3I–2I–1I0I1I2I3S0S1OEY0Y1Y2Y3S0S11211109S1S0LLHHL ÷ 8H ÷ 4L ÷ 2H NO CHANGE8765SCALE1/81/41/214321SMAXIMUM RATINGS*SymbolVCCVinVoutIinIoutICCTstgParameterDC Supply Voltage (Referenced to GND)DC Input Voltage (Referenced to GND)DC Output Voltage (Referenced to GND)DC Input Current, per PinDC Output Sink/Source Current, per PinDC VCC or GND Current per Output PinStorage TemperatureValue–0.5 to +7.0–0.5 to VCC +0.5–0.5 to VCC +0.5±20±50±50–65 to +150UnitVVVmAmAmA°C*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the RecommendedOperating Conditions.RECOMMENDED OPERATING CONDITIONSSymbolVCCVin, VoutSupply VoltageDC Input Voltage, Output Voltage (Ref. to GND)Input Rise and Fall Time (Note 1)′AC Devices except Schmitt InputsInput Rise and Fall Time (Note 2)′ACT Devices except Schmitt InputsJunction Temperature (PDIP)Operating Ambient Temperature RangeOutput Current — HighOutput Current — Low–4025VCC @ 3.0 VVCC @ 4.5 VVCC @ 5.5 Vtr, tfTJTAIOHIOLVCC @ 4.5 VVCC @ 5.5 VParameter′AC′ACTMin2.04.501504025108.014085–2424ns/V°C°CmAmAns/VTyp5.05.0Max6.05.5VCCUnitVVtr, tf1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.FACT DATA5-4元器件交易网www.cecb2b.comMC74AC350 MC74ACT350DC CHARACTERISTICS 74ACSymbol ParameterVCC(V) TA = +25°CTypVIHMinimum High LevelInput VoltageMaximum Low LevelInput VoltageMinimum High LevelOutput Voltage3.04.55.53.04.55.53.04.55.53.04.55.5VOLMaximum Low LevelOutput Voltage3.04.55.53.04.55.5IINIOZMaximum InputLeakage CurrentMaximum3-StateCurrent†Minimum DynamicOutput CurrentMaximum QuiescentSupply Current5.50.0020.0010.0011.52.252.751.52.252.752.994.495.4974ACTA =–40°C to +85°CUnitConditionsGuaranteed Limits2.13.153.850.91.351.652.94.45.42.563.864.860.10.10.10.360.360.36±0.12.13.153.850.91.351.652.94.45.42.463.764.760.10.10.10.440.440.44±1.0VVOUT = 0.1 Vor VCC – 0.1 VVOUT = 0.1 Vor VCC – 0.1 VIOUT = –50 µAV*VIN = VIL or VIH–12 mAIOH–24 mA–24 mAIOUT = 50 µAV*VIN = VIL or VIH12 mAIOL24 mA24 mAVI = VCC, GNDVI (OE) = VIL, VIHVI = VCC, GNDVO = VCC, GNDVOLD = 1.65 V MaxVOHD = 3.85 V MinVIN = VCC or GNDVILVVOHVVµA5.55.55.55.5±0.5±5.075–75µAmAmAµAIOLDIOHDICC8.080*All outputs loaded; thresholds on input associated with output under test.†Maximum test duration 2.0 ms, one output loaded at a time.Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.FACT DATA5-5元器件交易网www.cecb2b.comMC74AC350 MC74ACT350AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) 74ACSymbolParameterVCC*(V)MintPLHtPHLtPLHtPHLtPZHtPZLtPHZtPLZPropagation DelayIn to OnPropagation DelayIn to OnPropagation DelaySn to OnPropagation DelaySn to OnOutput Enable to OnOutput Enable to OnOutput Enable to OnOutput Enable to On3.35.03.35.03.35.03.35.03.35.03.35.03.35.03.35.04.03.04.03.05.03.55.03.53.52.53.52.55.04.53.02.5TA = +25°CCL = 50 pFTypMax12.58.512.58.515.511.015.511.08.56.011.07.59.58.06.56.074ACTA = –40°Cto +85°CCL = 50 pFMin3.02.53.02.54.02.54.53.03.02.02.52.04.54.02.52.0Max13.59.513.59.517.512.017.512.09.06.512.08.010.08.57.06.5nsnsnsnsnsnsnsns3-53-53-63-63-73-83-73-8UnitFig.No.*Voltage Range 3.3 V is 3.3 V ±0.3 V.Voltage Range 5.0 V is 5.0 V ±0.5 V.FACT DATA5-6元器件交易网www.cecb2b.comMC74AC350 MC74ACT350DC CHARACTERISTICS 74ACTSymbol ParameterVCC(V) TA = +25°CTypVIHVILVOHMinimum High LevelInput VoltageMaximum Low LevelInput VoltageMinimum High LevelOutput Voltage4.55.54.55.54.55.54.55.5VOLMaximum Low LevelOutput Voltage4.55.54.55.5IIN∆ICCTIOZMaximum InputLeakage CurrentAdditional Max. ICC/InputMaximum3-StateCurrent†Minimum DynamicOutput CurrentMaximum QuiescentSupply Current5.55.55.55.55.55.58.00.6±0.50.0010.0011.51.51.51.54.495.4974ACTTA =–40°C to +85°CUnitConditionsGuaranteed Limits2.02.00.80.84.45.43.864.860.10.10.360.36±0.12.02.00.80.84.45.43.764.760.10.10.440.44±1.01.5±5.075–7580VVVVOUT = 0.1 Vor VCC – 0.1 VVOUT = 0.1 Vor VCC – 0.1 VIOUT = –50 µA*VIN = VIL or VIH–24 mAIOH–24 mAIOUT = 50 µA*VIN = VIL or VIH24 mAIOL24 mAVI = VCC, GNDVI = VCC –2.1 VVI (OE) = VIL, VIHVI = VCC, GNDVO = VCC, GNDVOLD = 1.65 V MaxVOHD = 3.85 V MinVIN = VCC or GNDVVVµAmAµAmAmAµAIOLDIOHDICC*All outputs loaded; thresholds on input associated with output under test.†Maximum test duration 2.0 ms, one output loaded at a time.FACT DATA5-7元器件交易网www.cecb2b.comMC74AC350 MC74ACT350AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) 74ACTSymbolParameterVCC*(V)MintPLHtPHLtPLHtPHLtPZHtPZLtPHZtPLZPropagation DelayIn to OnPropagation DelayIn to OnPropagation DelaySn to OnPropagation DelaySn to OnOutput Enable to OnOutput Enable to OnOutput Enable to OnOutput Enable to On5.05.05.05.05.05.05.05.04.04.04.54.54.04.04.04.0TA = +25°CCL = 50 pFTypMax11.511.513.013.09.010.010.08.074ACTTA = –40°Cto +85°CCL = 50 pFMin3.03.03.53.53.03.03.03.0Max13.513.515.515.510.011.511.09.0nsnsnsnsnsnsnsns3-63-63-63-63-73-83-73-8UnitFig.No.*Voltage Range 5.0 V is 5.0 V ±0.5 V.CAPACITANCESymbolCINCPDInput CapacitancePower Dissipation CapacitanceParameterValueTyp4.540.0UnitpFpFTest Conditions VCC = 5.0 V VCC = 5.0 VFACT DATA5-8元器件交易网www.cecb2b.comMC74AC350 MC74ACT350OUTLINE DIMENSIONSN SUFFIXPLASTIC DIP PACKAGECASE 648–08ISSUE R9–A–16B18NOTES: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.DIMABCDFGHJKLMSINCHESMINMAX0.7400.7700.2500.2700.1450.1750.0150.0210.0400.700.100 BSC0.050 BSC0.0080.0150.1100.1300.2950.3050 _10 _0.0200.040MILLIMETERSMINMAX18.8019.556.356.853.694.440.390.531.021.772.54 BSC1.27 BSC0.210.382.803.307.507.740 _10 _0.511.01FSCL–T–HKGD16 PLSEATINGPLANEJTAMM0.25 (0.010)M–A–D SUFFIXPLASTIC SOIC PACKAGECASE 751B–05ISSUE J916–B–18P8 PL0.25 (0.010)MBSGFNOTES:1.DIMENSIONING AND TOLERANCING PERANSI Y14.5M, 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.MILLIMETERSMINMAX9.8010.003.804.001.351.750.350.490.401.251.27 BSC0.190.250.100.250 7 __5.806.200.250.50INCHESMINMAX0.3860.3930.1500.1570.0540.0680.0140.0190.0160.0490.050 BSC0.0080.0090.0040.0090 7 __0.2290.2440.0100.019KC–T–SEATINGPLANERX 45_MD16 PLMJ0.25 (0.010)TBSASDIMABCDFGJKMPRMotorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regardingthe suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, andspecifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in differentapplications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola doesnot convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components insystems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure ofthe Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any suchunintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmlessagainst all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or deathassociated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.How to reach us:USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447MFAX: RMFAX0@email.sps.mot.com –TOUCHTONE (602) 244–6609INTERNET: http://Design–NET.comJAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298◊FACT DATA5-9*MC74AC350/D*MC74AC350/D
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