74HC2G66-Q100; 74HCT2G66-Q100

Dual single-pole single-throw analog switch

The 74HC2G66-Q100; 74HCT2G66-Q100 is a dual single pole, single-throw analog switch. Each switch has two input/output terminals (nY and nZ) and a digital enable input (nE). When nE is LOW, the analog switch is turned off. 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 10.0 V for 74HC2G66-Q100

  • Very low ON resistance:

    • 41 Ω (typ.) at VCC = 4.5 V

    • 30 Ω (typ.) at VCC = 6.0 V

    • 21 Ω (typ.) at VCC = 9.0 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)

  • ESD protection:

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

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


Type numberProduct statusConfigurationVCC (V)RON (Ω)Logic switching levelsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC2G66DC-Q100ProductionSPST-NO2.0 - 9.0105CMOSvery low-40~12519428.3104VSSOP8
74HC2G66DP-Q100ProductionSPST-NO2.0 - 9.0105CMOSvery low-40~12520016.3101TSSOP8
74HCT2G66DC-Q100ProductionSPST-NO4.5 - 5.5118TTLvery low-40~12519428.3104VSSOP8
74HCT2G66DP-Q100ProductionSPST-NO4.5 - 5.5118TTLvery low-40~12520016.3101TSSOP8


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
( 9353 008 55125 )
( 9353 008 56125 )
( 9353 008 57125 )
( 9353 008 58125 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments

    Environmental information

    Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
    74HC2G66DC-Q10074HC2G66DC-Q100H74HC2G66DC-Q100Always Pb-free
    74HC2G66DP-Q10074HC2G66DP-Q100H74HC2G66DP-Q100Always Pb-free
    74HCT2G66DC-Q10074HCT2G66DC-Q100H74HCT2G66DC-Q100Always Pb-free
    74HCT2G66DP-Q10074HCT2G66DP-Q100H74HCT2G66DP-Q100Always Pb-free
    Quality and reliability disclaimer

    Documentation (5)

    File nameTitleTypeDate
    74HC_HCT2G66_Q100Dual single-pole single-throw analog switchData sheet2023-11-21
    AN10161PicoGate Logic footprintsApplication note2002-10-29
    AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
    SOT505-2plastic, thin shrink small outline package; 8 leads; 0.65 mm pitch; 3 mm x 3 mm x 1.1 mm bodyPackage information2022-06-03
    SOT765-1plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm bodyPackage information2022-06-03


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