74LVC240A资料

元器件交易网www.cecb2b.comPhilips SemiconductorsProduct specificationOctal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)74LVC240AFEATURESDESCRIPTION•5-volt tolerant inputs/outputs, for interfacing with 5-volt logicThe 74LVC240A is a high-performance, low-power, low-voltage,•Si-gate CMOS device, superior to most advanced CMOSSupply voltage range of 1.2V to 3.6Vcompatible TTL families.•Complies with JEDEC standard no. 8-1AInputs can be driven from either 3.3V or 5V devices. In 3-State•CMOS low power consumptionoperation, outputs can handle 5V. These features allow the use of•these devices as translators in a mixed 3.3V/5V environment.Direct interface with TTL levels•The ‘240A is an octal non-inverting buffer/line driver with 3-StateHigh impedance when VCC = 0Voutputs. The 3-State outputs are controlled by the output enableinputs 1OE and 2OE. A HIGH on nOE causes the outputs toassume a high impedance OFF-state. Schmitt-trigger action at allinputs makes the circuit highly tolerant for slower input rise and falltimes.The ’240’ is functionally identical to the ’244’, but the ’244’ hasinverting outputs.QUICK REFERENCE DATAGND = 0 V; Tamb = 25°C; tr = tf v2.5 nsSYMBOLPARAMETERCONDITIONSTYPICALUNITPropagation delayCtL = 50pFPHL/tPLH1AV2An to 1Yn;CC = 3.3V3.5nsn to 2YnCIInput capacitance5.0pFCPDPower dissipation capacitance perbufferNotes 1 and 220pFNOTE:1.CPD is used to determine the dynamic power dissipation (P x V2 x fD in mW):PD = CPDCC2 x fi + S (CL x VCCo) where:fi = input frequency in MHz; C = output frequency in MHz; VL = output load capacity in pF;fo) = sum of outputs.CC = supply voltage in V;2.SThe condition is V (CL x VCC2 x foI = GND to VCCORDERING INFORMATIONPACKAGESTEMPERATUREOUTSIDERANGENORTH AMERICANORTH AMERICAPKG. DWG. #20-Pin Plastic Small Outline (SO)–40°C to +85°C74LVC240A D74LVC240A DSOT163-120-Pin Plastic Shrink Small Outline (SSOP) Type II–40°C to +85°C74LVC240A DB74LVC240A DBSOT339-120-Pin Plastic Thin Shrink Small Outline (TSSOP) Type I–40°C to +85°C74LVC240A PW7LVC240APW DHSOT360-11998 May 202853-1981 19419元器件交易网www.cecb2b.comPhilips SemiconductorsProduct specificationOctal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)74LVC240APIN DESCRIPTIONPIN NUMBERSYMBOLFUNCTION11OEOutput enable input (active LOW)2, 4, 6, 81A0 to 1A3Data inputs3, 5, 7, 92Y0 to 2Y3Bus outputs10GNDGround (0V)17, 15, 13, 112A0 to 2A3Bus inputs18, 16, 14, 121Y0 to 1Y3Bus outputs192OEOutput enable input (active-LOW)20VCCPositive power supplyPIN CONFIGURATION1OE120VCC1A02192OE2Y03181Y01A14172A02Y15161Y11A26152A12Y27141Y21A38132A22Y39121Y3GND10112A3SV00212LOGIC SYMBOL (IEEE/IEC)1EN21841661481219EN119137155173SV006111998 May 203FUNCTION TABLEINPUTSOUTPUTnOEnAnnYnLLHLHLHXZH= HIGH voltage levelL= LOW voltage levelX= Don’t careZ= High impedance OFF-stateLOGIC SYMBOL21A01Y018172A02Y0341A11Y116152A12Y1561A21Y214132A22Y2781A31Y312112A32Y3911OE192OESV00608FUNCTIONAL DIAGRAM21A01Y01841A11Y11661A21Y21481A31Y31211OE172A02Y03152A12Y15132A22Y27112A32Y39192OESV00610元器件交易网www.cecb2b.comPhilips SemiconductorsProduct specificationOctal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)74LVC240ARECOMMENDED OPERATING CONDITIONSSYMBOLPARAMETERCONDITIONSLIMITSMINMAXUNITVCCDC supply voltage (for max. speed performance)2.73.6VVCCDC supply voltage (for low-voltage applications)1.23.6VVIDC Input voltage range05.5VDC Output voltage range; output HIGH or LOWVVCCOstate0VDC output voltage range; output 3-State05.5TambOperating ambient temperature range in free-air–40+85°Ctr, tfInput rise and fall timesVCC = 1.2 to 2.7V020VCC = 2.7 to 3.6V010ns/VABSOLUTE MAXIMUM RATINGS1In accordance with the Absolute Maximum Rating System (IEC 134)Voltages are referenced to GND (ground = 0V)SYMBOLPARAMETERCONDITIONSRATINGUNITVCCDC supply voltage–0.5 to +6.5VIIKDC input diode currentVI t0–50mAVIDC input voltageNote 2–0.5 to +6.5VIOKDC output diode currentVO uVCC or VO t 0\"50mAVDC output voltage; output HIGH or LOW stateNote 2–0.5 to VCC +0.5ODC output voltage; output 3-StateNote 2–0.5 to 6.5VIODC output source or sink currentVO = 0 to VCC\"50mAIGND, ICCDC VCC or GND current\"100mATstgStorage temperature range–65 to +150°CPower dissipation per packagePTOT– plastic mini-pack (SO)above +70°C derate linearly with 8 mW/K500– plastic shrink mini-pack (SSOP and TSSOP)above +60°C derate linearly with 5.5 mW/K500mWNOTES:1.Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of thedevice at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure toabsolute-maximum-rated conditions for extended periods may affect device reliability.2.The input and output voltage ratings may be exceeded if the input and output current ratings are observed.1998 May 204元器件交易网www.cecb2b.comPhilips SemiconductorsProduct specificationOctal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)74LVC240ADC ELECTRICAL CHARACTERISTICSOver recommended operating conditions voltages are referenced to GND (ground = 0V)LIMITSSYMBOLPARAMETERTEST CONDITIONSTemp = -40°C to +85°CUNITMINTYP1MAXVCC = 1.2VVCCIHHIGHHIGH level Input voltagelevelInputvoltageVVCC = 2.7 to 3.6V2.0VVLOW level Input voltagelevelInputvoltageVCC = 1.2VGNDILLOWVCC = 2.7 to 3.6V0.8VVCC = 2.7V;VI = VIH or VIL;IO = –12mAVCC*0.5V = VIH or VIL;IO = –100µAVCC*0.2VCCOHOHIGHHIGH level output voltageleveloutputvoltageVCC = 3.0V;VIVCC = 3.0V;VI = VIH or VIL;IO = –18mAVVCC*0.6VCC = 3.0V;VI = VIH or VIL;IO = –24mAVCC*0.8VCC = 2.7V;VI = VIH or VIL;IO = 12mA0.40VOLLOW level output voltageVCC = 3.0V;VI = VIH or VIL;IO = 100µAGND0.20VVCC = 3.0V;VI = VIH or VIL;IO = 24mA0.55IIInput leakage currentInputleakagecurrent2VCC = 3.6V;=36V;VI = 5.5V or GND=55VorGND\"0.101\"5µAIOZ3-State output OFF-state currentVCC = 3.6V;VI = VIH or VIL;VO = 5.5V or GND0.1\"10µAIoffPower off leakage currentVCC = 0.0V; VI or VO = 5.5V0.1\"10µAICCQuiescent supply currentVCC = 3.6V;VI = VCC or GND;IO = 00.110µA∆ICCAdditional quiescent supply currentper input pinVCC = 2.7V to 3.6V; VI = VCC –0.6V; IO = 05500µANOTES:1.All typical values are at VCC = 3.3V and Tamb = 25°C.2.The specified overdrive current at the data input forces the data input to the opposite logic input state.AC CHARACTERISTICSGND = 0V; tr = tf v 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.LIMITSSYMBOLPARAMETERWAVEFORMVCC = 3.3V ±0.3VVCC = 2.7VVCC = 1.2VUNITMINTYP1MAXMINMAXTYPtPropagation delaytPLHPHL1An to 1Yn; 1, 31.53.56.51.57.516.0ns2An to 2Ynt3-State output enable timetPZHPZL1OE to 1Yn; 2, 31.54.38.01.59.019.0ns2OE to 2Ynt3-State output disable timetPHZPLZ1OE to 1Yn; 2, 31.53.77.01.58.017.0ns2OE to 2YnNOTE:1.Unless otherwise stated, all typical values are at VCC = 3.3V and Tamb = 25°C.1998 May 205元器件交易网www.cecb2b.comPhilips SemiconductorsProduct specificationOctal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)74LVC240AAC WAVEFORMSVM = 1.5V at VCC w 2.7V; VM = 0.5 VCC at VCC t 2.7V.Voutput load.OL and VOH are the typical output voltage drop that occur with theVX = VOL + 0.3V at VCC w 2.7V; VX = VOL + 0.1 V = VCC at VCC t2.7VVY = VOH –0.3V at VCC w2.7V; VYOH – 0.1 VCC at VCC t2.7VVIINPUTSVMGNDtPHLtPLHVOHOUTPUTSVMVOLSW00221Waveform 1. Inputs (1An, 2An) to outputs (1Yn, 2Yn)propagation delays.VInOE INPUTVMGNDtVPLZtPZLCCQLOW-to-OFFn OUTPUTVOFF-to-LOWMVVXOLtPHZtPZHVOHQn OUTPUTVYHIGH-to-OFFVOFF-to-HIGHMGNDenabledoutputsdisabledoutputsenabledoutputsSV00613Waveform 2. 3-State enable and disable times.1998 May 20TEST CIRCUITSV1CC2Philips Semiconductors

Product specification

Octal buffer/line driver with 5-volt tolerantinputs/outputs; inverting (3-State);

74LVC240A

SO20:plastic small outline package; 20 leads; body width 7.5 mmSOT163-1

1998 May 207

元器件交易网www.cecb2b.com

Philips Semiconductors

Product specification

Octal buffer/line driver with 5-volt tolerantinputs/outputs; inverting (3-State);

74LVC240A

SSOP20:plastic shrink small outline package; 20 leads; body width 5.3 mmSOT339-1

1998 May 208

元器件交易网www.cecb2b.com

Philips Semiconductors

Product specification

Octal buffer/line driver with 5-volt tolerantinputs/outputs; inverting (3-State);

74LVC240A

TSSOP20:plastic thin shrink small outline package; 20 leads; body width 4.4 mmSOT360-1

1998 May 209

元器件交易网www.cecb2b.com

Philips Semiconductors

Product specification

Octal buffer/line driver with 5-volt tolerantinputs/outputs; inverting (3-State);

1998 May 2074LVC240A

NOTES

10

元器件交易网www.cecb2b.com

Philips Semiconductors

Product specification

74LVC240A

Definitions

Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. Fordetailed information see the relevant data sheet or data handbook.

Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above oneor more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these orat any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extendedperiods may affect device reliability.

Application information — Applications that are described herein for any of these products are for illustrative purposes only. PhilipsSemiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing ormodification.

Disclaimers

Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products canreasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applicationsdo so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.

Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standardcells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes noresponsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to theseproducts, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unlessotherwise specified.

Philips Semiconductors811 East Arques AvenueP.O. Box 3409

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© Copyright Philips Electronics North America Corporation 1998

All rights reserved. Printed in U.S.A.

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Document order number:Date of release: 05-96

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