SN74CBTS3306PW

Overview

The SN74CBTS3306PW is a dual FET bus switch manufactured by Texas Instruments, housed in an 8-pin TSSOP package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum operating temperature of +85 °C. The device features two independent circuits with a 1 x 1:1 configuration. Key electrical specifications include a maximum on-resistance of 35 ohms and a propagation delay of 0.25 ns at 5 V with a 50 pF load. It provides high output drive capabilities with maximum low-level output current of 128 mA and maximum high-level output current of -128 mA.

Feature Summary

• Integrates Schottky diode clamping for enhanced signal integrity
• Provides low on-resistance for efficient signal transmission
• Features fast propagation delay suitable for high-speed data buses

Applications

• High-speed data bus switching applications
• Portable equipment requiring low power consumption
• Consumer electronics utilizing CMOS technology

Procurement Notes

Verify the specific suffix 'PW' corresponds to the 8-TSSOP package when sourcing. Confirm RoHS compliance status as indicated in official documentation. Ensure ordering details match the exact part number to avoid pinout or functional mismatches with similar variants in the CBT series.

Selection Notes

Select this component for designs requiring dual-channel bus switching with Schottky protection. It is suitable for 5V logic systems needing low insertion loss. Consider the TSSOP package constraints for PCB layout. Verify input control requirements against system logic levels.

Part Context

This device belongs to the Texas Instruments SN74CBT series of bus switches. It is designed for use in portable and consumer applications where space and power are critical. The series offers various configurations and packages to meet different interface needs.

Replacement Considerations

Check datasheets for alternative parts like SN74CBTD3306D or Nexperia CBTD3306PW,118. Verify package compatibility and electrical parameter alignment before substitution.

FAQ

What is the function of the Schottky diodes in this device?

The integrated Schottky diodes provide clamping to prevent signal overshoot and undershoot, protecting downstream components.

What is the recommended handling for unused control inputs?

All unused control inputs must be held at VCC or GND to ensure proper device operation and prevent undefined states.