Dual 1-of-4 FET multiplexer/demultiplexer with charge pump

The 74CB3Q3253 is a dual high-bandwidth single-pole, quad-throw FET bus switch. Each switch features a select input (Sn) and an output enable input (nOE). The switch is disabled when the nOE input is HIGH. An internal charge-pump increases the gate voltage of the NMOS pass transistor. The result is improved RON and RON(flat) performance and the ability to switch 5 V signals when VCC = 3.3 V.

Features and benefits

  • Wide supply voltage range from 2.3 V to 3.6 V

  • Overvoltage switching on switch ports:

    • 0 V to 5 V switching with VCC = 2.5 V

    • 0 V to 5 V switching with VCC = 3.3 V

  • Switch voltage accepts signals up to 5.5 V

  • 4 Ω (typical) ON resistance

  • 3.5 pF (typical) OFF-state capacitance

  • High bandwidth 0.5 GHz (maximum)

  • Low input/output capacitance minimizes loading and signal distortion

  • Fast switching frequency fmax = 20 MHz (maximum)

  • Low power consumption ICC = 0.4 mA (typical)

  • Control inputs can be driven by TTL or 5 V/3.3 V CMOS outputs

  • IOFF supports partial power-down mode operation

  • Latch-up performance exceeds 100 mA per JESD 78E Class II Level A

  • ESD protection:

    • HBM ANSI/ESDA/JEDEC JS-001-2012 Class 2 exceeds 2 kV

    • CDM JESD22-C101F exceeds 1000 V

  • Specified from -40 °C to +85 °C


  • Communication infrastructure

  • Bus isolation

  • Memory interleaving

  • Sensor multiplexing


Type numberProduct statusVCC (V)VPASS (V)Logic switching levelsRON (Ω)f(-3dB) (MHz)Nr of bitstpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74CB3Q3253BQProduction2.3 - 3.6VccCMOS/LVTTL4-20.2very low-40~85847.351.5DHVQFN16
74CB3Q3253PWProduction2.3 - 3.6VccCMOS/LVTTL4-20.2very low-40~851162.444.3TSSOP16

(-) dash denotes: "Parameter value not specified for this product"


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
( 9353 392 08115 )
( 9353 392 09118 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
74CB3Q3253BQ74CB3Q3253BQX74CB3Q3253BQweek 25, 2019
74CB3Q3253PW74CB3Q3253PWJ74CB3Q3253PWweek 25, 2019
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
74CB3Q3253Dual 1-of-4 FET multiplexer/demultiplexer with charge pumpData sheet2021-06-28
Nexperia_document_leaflet_CB3Q_switches_201803CB3Q Bus SwitchesLeaflet2018-04-06
Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyPackage information2023-05-11
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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