74LVC257AD

Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state


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The 74LVC257A is a quad 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (pin S). The data inputs from source 0 (pins 1I0 to 4I0) are selected when pin S is LOW and the data inputs from source 1 (pins 1I1 to 4I1) are selected when pin S is HIGH. Data appears at the outputs (pins 1Y to 4Y) in true (non-inverting) form from the selected inputs. The device is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to pin S. The outputs are forced to a high-impedance OFF-state when pin OE is HIGH.

Inputs can be driven from either 3.3 V or 5.0 V devices. When disabled, up to 5.5 V can be applied to the outputs. These features allow the use of these devices as translators in mixed 3.3 V and 5 V applications.

Features and benefits

  • 5 V tolerant inputs/outputs, for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 to 3.6 V
  • CMOS low-power consumption
  • Direct interface with TTL levels
  • Output drive capability 50 Ω transmission lines at 85 °C
  • Complies with JEDEC standard:
    • JESD8-7A (1.65 V to 1.95 V)
    • JESD8-5A (2.3 V to 2.7 V)
    • JESD8-C/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C.
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram: 74LVC257ABQ, 74LVC257AD, 74LVC257ADB, 74LVC257APW
Block diagram: 74LVC257ABQ, 74LVC257AD, 74LVC257ADB, 74LVC257APW

Parametrics of this product

Type numberPackageNr of pinsPackage nameProduct statustpd(ns)VCC(V)FamilyPower dissipation considerationsLogic switching levelsOutput drive capability(mA)DescriptionTamb(Cel)
74LVC257ADSOT109-1
(SO16)		16SO16Production2.41.2 - 3.6LVClowCMOS/LVTTL+/- 24quad 2-input multiplexer (3-State)-40~125

Package

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
74LVC257AD74LVC257AD,1129352 606 78112Volume productionSOT109-1
(SO16) 		Tube74LVC257AD
74LVC257AD74LVC257AD,1189352 606 78118Volume productionSOT109-1
(SO16) 		Reel Pack, SMD, 13"74LVC257AD

Outline drawing

Package VersionPackage NamePackage DescriptionReference CodesIssue Date
SOT109-1SO16plastic small outline package; 16 leads; body width 3.9 mmMS-012 (JEDEC); 076E07 (IEC); 2003-02-19

Related documents

Reflow soldering

Selection guide

Wave soldering

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
74LVC257AD74LVC257AD,11274LVC257ADweek 35, 20043.872.5839793281653747E811
74LVC257AD74LVC257AD,11874LVC257ADweek 35, 20043.872.5839793281653747E811
Quality and reliability disclaimer

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Documentation for this product

File nameTitleTypeFormatDate
74LVC257AQuad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-stateData sheetpdf2011-11-28
AN240Interfacing 3 Volt and 5 Volt ApplicationsApplication notepdf1995-09-15
AN263Power considerations when using CMOS and BiCMOS logic devicesApplication notepdf2002-02-05
AN11009Pin FMEA for LVC familyApplication notepdf2011-02-04
AN212Package lead inductance considerations in high-speed applicationsApplication notepdf2013-03-13
AN10156Sorting through the low voltage logic mazeApplication notepdf2013-03-13
lvc257alvc257a IBIS modelIBIS modelibs2013-04-07
lvclvc Spice modelSPICE modelzip2013-05-07

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
74LVC257AD9352 606 7811274LVC257AD,112      not available
74LVC257AD9352 606 7811874LVC257AD,118NAAVNET EXPRESS AMERICAS10,2005/16/2013Buy online 
   EUAVNET EXPRESS EUROPE5,0005/16/2013Buy online 
   ASIAWPI5,000250005/16/2013Buy online 
   NAMOUSER ELECTRONICS4,4925/16/2013Buy online 
   ASIAARROW ASIA PAC LTD2,5001/31/2013Buy online 
   NADIGI-KEY CORPORATION1,7145/16/2013Buy online 
   JAPANCHIP ONE STOP10005/16/2013Buy online 

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