74HC257-Q100; 74HCT257-Q100

Quad 2-input multiplexer; 3-state

The 74HC257-Q100; 74HCT257-Q100 is a quad 2-input multiplexer with 3-state outputs. Inputs include clamp diodes. It enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
    • Wide supply voltage range from 2.0 V to 6.0 V
    • CMOS low power dissipation
    • High noise immunity
    • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
    • Complies with JEDEC standards:
      • JESD8C (2.7 V to 3.6 V)
      • JESD7A (2.0 V to 6.0 V)
    • Non-inverting data path
    • 3-state outputs interface directly with system bus
    • Input levels:
      • For 74HC257-Q100: CMOS level
      • For 74HCT257-Q100: TTL level
    ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)


Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC257D-Q100Production2.0 - 6.0CMOS± 7.811low-40~125929.652SO16
74HC257PW-Q100Production2.0 - 6.0CMOS± 7.811low-40~1251254.554.6TSSOP16
74HCT257D-Q100Production4.5 - 5.5TTL± 613low-40~125929.652SO16
74HCT257PW-Q100Production4.5 - 5.5TTL± 613low-40~1251254.554.6TSSOP16


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
Reel 13" Q1/T1Active74HC257D74HC257D-Q100J
( 9353 070 57118 )
Reel 13" Q1/T1ActiveHC25774HC257PW-Q100J
( 9353 070 58118 )
Reel 13" Q1/T1Active74HCT257D74HCT257D-Q100J
( 9353 070 61118 )
Reel 13" Q1/T1ActiveHCT25774HCT257PW-Q100J
( 9353 070 62118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC257D-Q10074HC257D-Q100J74HC257D-Q100Always Pb-free29.90.91.11E911
74HC257PW-Q10074HC257PW-Q100J74HC257PW-Q100Always Pb-free29.90.91.11E911
74HCT257D-Q10074HCT257D-Q100J74HCT257D-Q100Always Pb-free29.90.91.11E911
74HCT257PW-Q10074HCT257PW-Q100J74HCT257PW-Q100Always Pb-free29.90.91.11E911
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
74HC_HCT257_Q100Quad 2-input multiplexer; 3-stateData sheet2021-02-09
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2021-01-06
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyPackage information2020-04-21


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