SN74CBTS3306D

Overview

The SN74CBTS3306D is a dual FET bus switch from Texas Instruments, featuring a 1 x 1:1 configuration with two independent circuits. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an output current capability of up to 128 mA at both high and low logic levels. The device utilizes an 8-pin SOIC package and maintains an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Dual FET architecture providing bidirectional signal transmission
• Integrated level shifting functionality for mixed-voltage interfaces
• -2 V undershoot protection mechanism included

Applications

• Mixed-voltage domain signal routing
• High-speed data bus switching
• Portable equipment interface management

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape-and-reel specifications. Ensure the selected variant matches the required operating voltage range and thermal performance criteria for the target application environment.

Selection Notes

Select this component when interfacing between 5V systems and lower voltage domains requiring level translation. Confirm that the 8-pin SOIC footprint aligns with the PCB layout constraints and that the 128mA drive strength meets the load requirements.

Part Context

This part belongs to the SN74CBTS series, designed specifically for applications requiring simultaneous level shifting and bus switching. It serves as a bridge between different voltage logic families, enabling seamless communication across varying power rails in complex electronic systems.

Replacement Considerations

SN74CBTS3306DR (Reel version)

FAQ

Does the SN74CBTS3306D support bidirectional data flow?

Yes, the internal dual FET structure allows signals to pass in either direction between the A and B ports.

What is the purpose of the undershoot protection?

The integrated -2 V undershoot protection prevents damage or latch-up during rapid signal transitions or ground bounce events.