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Nexperia’s new FET bus switches based on CB3Q technology have a high bandwidth of 500MHz on the data path. CB3Q is a higher-bandwidth technology than CBTLV(D), making these switches suitable for use in broadband networking and high-speed communications equipment.

Suitable for use in functions such as sensor multiplexing, memory interleaving and bus isolation, the CB3Q325x devices include a charge pump so that they can switch 5V signals while operating from a 2.5V or 3.3V supply node.

These low-voltage bus interface solutions feature low and flat on-resistance of around 4Ω, and a low input/output capacitance, minimising capacitive loading and signal distortion on the data bus. CB3Q switches are low-power solutions with a typical static current of 0.4mA.

The CB3Q FET bus switches are available in leadless DQFN16 and leaded TSSOP16 packages. The 74CB3Q3257PW-Q100 is suitable for automotive applications.

  • Supply-voltage range: 2.3V to 3.6V
  • Over-voltage tolerant switch inputs
  • Support for mixed-mode voltage operation
  • IOFF circuitry for partial power-down operation
  • Sensor multiplexing
  • Broadband communication
  • Computing equipment
  • Networking equipment
  • Memory interleaving


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