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SN74CB3Q3305 Datasheet 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

Manufacturer: Texas Instruments

Overview: SN74CB3Q3305 SCDS141D – OCTOBER 2003 – REVISED SEPTEMBER 2021 SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.

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General Description

The SN74CB3Q3305 device is a high-bandwidth FET bus switch using a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron).

The low and flat ON-state resistance allows for minimal propagation delay and supports switching input voltage beyond the supply on the data input/output (I/O) ports.

The device also

Key Features

  • High-bandwidth data path (up to 500 MHz)1.
  • 5-V tolerant I/Os with device powered up or powered down.
  • Low and flat ON-state resistance (ron) characteristics over operating range (ron = 3 Ω typical).
  • Supports input voltage beyond supply on data I/O ports.
  • 0 to 5 V switching with 3.3 V VCC.
  • 0 to 3.3 V switching with 2.5 V VCC.
  • Bidirectional data flow with near-zero propagation delay.
  • Low input or output capacitance minimizes l.

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