SN74CB3Q3305DCUR

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Texas Instruments

3.3-V, 1:1 (SPST), 2-CHANNEL FET BUS SWITCH (ACTIVE HIGH)

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SN74CB3Q3305DCUR

Active

Texas Instruments

3.3-V, 1:1 (SPST), 2-CHANNEL FET BUS SWITCH (ACTIVE HIGH)

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Description Specifications Series Pricing CAD Documents

Description

General part information

SN74CB3Q3305 Series

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 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 device provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.

This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry 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.

Technical Specifications

Parameters and characteristics for this part

Specification	SN74CB3Q3305DCUR

Circuit	1 x 1:1
Independent Circuits	2
Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package Length	0.091 in
Package Name	8-VSSOP, 8-VFSOP
Package Width	2.3 mm
Type	Bus Switch
Voltage - Supply (Maximum)	3.6 V
Voltage - Supply (Minimum)	2.3 V
Voltage Supply Source	Single Supply

SN74CB3Q3305 Series

3.3-V, 1:1 (SPST), 2-channel FET bus switch (active high)

Part	Independent Circuits	Type	Circuit	Package Name	Operating Temperature (Min)	Operating Temperature (Max)	Voltage Supply Source	Package Length	Package Width	Mounting Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)
Texas Instruments SN74CB3Q3305PW	2	Bus Switch	1 x 1:1	8-TSSOP	-40 °C	85 °C	Single Supply	0.173 in	4.4 mm	Surface Mount	3.6 V	2.3 V
Texas Instruments 74CB3Q3305DCURE4	2	Bus Switch	1 x 1:1	8-VFSOP 8-VSSOP	-40 °C	85 °C	Single Supply	0.091 in	2.3 mm	Surface Mount	3.6 V	2.3 V
Texas Instruments SN74CB3Q3305PWRG4	2	Bus Switch	1 x 1:1	8-TSSOP	-40 °C	85 °C	Single Supply	0.173 in	4.4 mm	Surface Mount	3.6 V	2.3 V
Texas Instruments SN74CB3Q3305PWG4	2	Bus Switch	1 x 1:1	8-TSSOP	-40 °C	85 °C	Single Supply	0.173 in	4.4 mm	Surface Mount	3.6 V	2.3 V
Texas Instruments 74CB3Q3305DCURG4	2	Bus Switch	1 x 1:1	8-VFSOP 8-VSSOP	-40 °C	85 °C	Single Supply	0.091 in	2.3 mm	Surface Mount	3.6 V	2.3 V
Texas Instruments SN74CB3Q3305PWR	2	Bus Switch	1 x 1:1	8-TSSOP	-40 °C	85 °C	Single Supply	0.173 in	4.4 mm	Surface Mount	3.6 V	2.3 V
Texas Instruments SN74CB3Q3305PWRE4	2	Bus Switch	1 x 1:1	8-TSSOP	-40 °C	85 °C	Single Supply	0.173 in	4.4 mm	Surface Mount	3.6 V	2.3 V