SN74CB3Q3306ADCUR

Overview

The SN74CB3Q3306ADCUR is a digital bus switch IC from the SN74CB3Q3306A series, manufactured by Texas Instruments. It features two bidirectional FET switches in an 8-pin VSSOP package. The device operates within a supply voltage range of 2.3 V to 3.6 V and supports data rates up to 1 GHz. Key electrical parameters include a maximum on-resistance of 9 Ohms and a maximum propagation delay of 200 ps. It functions with low power consumption, drawing a maximum supply current of 700 uA. The component is rated for operation between -40°C and +85°C.

Feature Summary

• Provides high-bandwidth signal transmission suitable for high-speed data applications
• Integrates dual bidirectional FET switches for efficient bus switching
• Includes internal voltage clamp structures to protect against input overvoltage conditions

Applications

• Portable equipment requiring low-voltage operation
• Consumer electronics utilizing high-speed data buses
• Computing and infrastructure systems needing compact bus switching solutions

Procurement Notes

Verify the specific suffix 'CUR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the VSSOP-8 package dimensions align with the designated footprint on the target printed circuit board. Ensure the operating temperature range meets the environmental specifications of the final application environment.

Selection Notes

Select this component when a low on-resistance and minimal propagation delay are critical for maintaining signal integrity in high-speed digital interfaces. The 2.3 V to 3.6 V operating range makes it suitable for modern low-power logic families. Consider the small form factor of the VSSOP-8 package for space-constrained designs requiring dual-channel bus switching capabilities.

Part Context

This part belongs to the SN74CB3Q3306A family of low-voltage, high-bandwidth bus switches. The family is designed to replace mechanical relays and other switching mechanisms in portable and consumer applications. The CB3Q series specifically focuses on providing robust protection and high-speed performance in a compact surface-mount package.

Replacement Considerations

SN74CB3Q3306ADCU is a verified alternative offering identical electrical characteristics in a cut-tape format instead of reel packaging.