SN74CBTD3306DR

Overview

The SN74CBTD3306DR is a dual FET bus switch from Texas Instruments, featuring level shifting and -2 V undershoot protection. It operates within a supply voltage range of 4.5 V to 5.5 V. The device provides two independent switches in an 8-pin SOIC package. Key electrical parameters include a maximum on-resistance of 35 ohms and a propagation delay of 0.25 ns at 5 V with a 50 pF load. Output currents reach 128 mA low and -128 mA high. Operating temperatures span from -40 °C to +85 °C.

Feature Summary

• Integrates dual FET bus switches with built-in level shifting capabilities
• Includes protection against signal undershoot down to -2 V
• Supports single power supply operation for simplified circuit design

Applications

• High-speed data bus switching applications
• Portable equipment requiring low power consumption
• Consumer electronics utilizing 5V logic interfaces

Procurement Notes

Verify the specific suffix DR indicates tape and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the component matches the original datasheet specifications regarding pinout and electrical characteristics before integration into production designs.

Selection Notes

Select this component when designing systems requiring bidirectional data transfer between different voltage domains. The integrated level shifting simplifies interface requirements compared to standard switches. Consider the 35-ohm on-resistance for signal integrity analysis in high-frequency applications. Verify thermal performance within the specified industrial temperature range during board layout.

Part Context

This part belongs to the SN74CBTD series of digital bus switches. It shares functional similarities with variants like SN74CBTD3306D but differs in packaging format. The DR suffix specifically denotes the reel-based packaging method suitable for automated surface-mount assembly processes.

Replacement Considerations

SN74CBTD3306DRE4 serves as a lead-free alternative within the same family. SN74CBTD3306CDR offers identical functionality in a tape-and-reel format. Verify pin compatibility and electrical specifications before substituting these parts.