SN74CB3Q3384DWR

Overview

The SN74CB3Q3384DWR is a 10-bit FET bus switch manufactured by Texas Instruments, designed for high-speed data routing in low-voltage digital systems. It operates within a supply voltage range of 2.3 V to 3.6 V and features a maximum on-state resistance of 7 ohms. The device ensures signal integrity with a maximum propagation delay of 250 ps. It is housed in a 24-pin SOIC package and supports surface-mount installation. The component functions across an extended temperature range from -40°C to +85°C and meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

• High-speed data switching capability with low propagation delay for efficient signal transmission
• Low on-state resistance to minimize signal loss and power consumption during active states
• Automotive-grade reliability certified under AEC-Q100 standards for harsh environment operation

Applications

• Automotive infotainment system data buses
• High-speed memory interface routing
• Portable electronic device signal management

Procurement Notes

Verify the specific suffix 'DWR' corresponds to the SOIC-24 tape-and-reel packaging configuration required for your assembly process. Confirm that the AEC-Q100 qualification status aligns with your automotive or industrial reliability requirements. Ensure the operating voltage range of 2.3 V to 3.6 V matches your system's power rail specifications before finalizing procurement.

Selection Notes

Select this component when a 10-bit wide bus switch is required for 3.3 V logic families. The SN74CB3Q3384DWR is suitable for designs needing automotive certification alongside high-speed performance. Consider the SOIC-24 footprint constraints and the 7-ohm resistance limit for your impedance matching calculations. This part is ideal for replacing older TTL-compatible switches in modern low-voltage architectures.

Part Context

This device belongs to the SN74CB3Q family of automotive-qualified bus switches. It shares functional similarities with the SN74CBT3384C but offers enhanced reliability for automotive use. The DWR suffix indicates the specific reel packaging format. It serves as a bridge between different voltage domains while maintaining signal integrity in high-density PCB layouts.

Replacement Considerations

The SN74CBT3384C is a non-automotive equivalent with similar electrical characteristics but lacks AEC-Q100 certification. Verify pinout compatibility and package dimensions before substitution. Ensure the replacement meets the required operating temperature range and voltage specifications.