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74HC251-Q100; 74HCT251-Q100

8-input multiplexer; 3-state

The 74HC251-Q100; 74HCT251-Q100 is an 8-bit multiplexer with eight binary inputs (I0 to I7), three select inputs (S0 to S2) and an output enable input (OE). The select inputs select one of the eight binary inputs and route it to the complementary outputs (Y and Y). A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable 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)
  • Input levels:

    • For 74HC251-Q100: CMOS level

    • For 74HCT251-Q100: TTL level

  • Non-inverting data path

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

Parametrics

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
74HC251D-Q100Production2.0 - 6.0CMOS± 5.218low-40~125804.138SO16
74HC251PW-Q100Production2.0 - 6.0CMOS± 5.218low-40~1251142.041.9TSSOP16
74HCT251D-Q100Production4.5 - 5.5TTL± 422low-40~125804.138SO16
74HCT251PW-Q100Production4.5 - 5.5TTL± 422low-40~1251142.041.9TSSOP16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC251D-Q100
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HC251D74HC251D-Q100J
( 9353 011 82118 )
74HC251PW-Q100
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC25174HC251PW-Q100J
( 9353 013 52118 )
74HCT251D-Q100
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HCT251D74HCT251D-Q100J
( 9353 027 74118 )
74HCT251PW-Q100
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHCT25174HCT251PW-Q100J
( 9353 027 76118 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
74HC251D-Q10074HC251D-Q100J74HC251D-Q100Always Pb-free
74HC251PW-Q10074HC251PW-Q100J74HC251PW-Q100Always Pb-free
74HCT251D-Q10074HCT251D-Q100J74HCT251D-Q100Always Pb-free
74HCT251PW-Q10074HCT251PW-Q100J74HCT251PW-Q100Always Pb-free
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
74HC_HCT251_Q1008-input multiplexer; 3-stateData sheet2024-03-14
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
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

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