SN74CB3T3384DBQR

Overview

The SN74CB3T3384DBQR is a 10-bit FET bus switch manufactured by Texas Instruments, designed for high-speed data transmission in 5-V systems. It features low on-resistance and minimal propagation delay to ensure signal integrity across wide buses. The device includes -2-V undershoot protection, allowing it to interface with buses that exhibit voltage dips below ground without damage. Operating within a supply voltage range of 4.5 V to 5.5 V, it supports an extended industrial temperature range from -40°C to +85°C. Housed in a 24-pin SSOP package, this component facilitates efficient routing of digital signals in complex electronic architectures.

Feature Summary

• Provides 10-bit bidirectional data switching capability for high-density bus applications
• Incorporates -2-V undershoot protection to safeguard against negative voltage transients
• Delivers low on-resistance and fast propagation delays for high-bandwidth signal integrity

Applications

• High-speed data bus switching in computer and telecommunications equipment
• Signal routing in consumer electronics requiring 5-V logic interfaces
• Industrial control systems operating in extended temperature environments

Procurement Notes

Verify the exact part number SN74CB3T3384DBQR against official Texas Instruments documentation, as similar identifiers like SN74CBTD3384CDBR or SN74CBT3384CDBQR exist. Confirm package type and electrical specifications match system requirements before ordering. Ensure compliance with RoHS directives if applicable to your manufacturing standards.

Selection Notes

Select this component when designing 5-V digital systems requiring wide bus switching with robust transient protection. Consider its 24-SSOP footprint for PCB layout constraints. Evaluate the trade-off between its 10-bit width and pin count compared to narrower switches. Verify thermal performance within the specified -40°C to +85°C range for your specific application environment.

Part Context

This device belongs to the SN74CB3T series of low-voltage bus switches from Texas Instruments. While many parts in this family operate at lower voltages (2.3V–3.6V), this specific variant is optimized for 5-V operation. It shares functional similarities with other 10-bit switches but distinguishes itself through its specific voltage tolerance and undershoot protection capabilities tailored for legacy 5-V bus architectures.

Replacement Considerations

SN74CBT3384CDBQR is a verified equivalent part number offering identical functionality and specifications.