Dual FET Bus Switch 2.5-V/3.3-V Low-Voltage, High-Bandwidth

The SN74CB3Q3305 is a high-bandwidth FET bus Switch utilizing 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 Rail-to-Rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3305 provides an optimized Interface solution ideally suited for Broadband Communications networking, and data-intensive computing systems.
The SN74CB3Q3305 is organized as two 1-bit switches with separate output-enable (1OE, 2OE) inputs. It CAN be used as two 1-bit Bus Switches or as one 2-bit bus Switch When OE is high, the associated 1-bit bus Switch is ON and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is low, the associated 1-bit bus Switch is OFF and a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.
To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.
By Texas Instruments
SN74CB3Q3305 's PackagesSN74CB3Q3305 's pdf datasheet
74CB3Q3305DCURE4 US8
74CB3Q33011395DCURG4 US8

SN74CB3Q3305 Pinout, Pinouts
SN74CB3Q3305 pinout,Pin out
This is one package pinout of SN74CB3Q3305,If you need more pinouts please download SN74CB3Q3305's pdf datasheet.

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