SN74CB3T3306DCUR

Overview

The SN74CB3T3306DCUR is a dual FET bus switch from the Texas Instruments 74CB series, housed in an 8-VSSOP package. It operates on a single power supply ranging from 2.3 V to 3.6 V and supports bidirectional data transmission with two independent circuits. The device features a low on-resistance of 9 Ohms maximum and a propagation delay of 200 ps maximum at 50 pF load. It functions within a temperature range of -40 °C to +85 °C and includes voltage clamp protection.

Feature Summary

• Dual FET architecture providing high-bandwidth signal switching for two independent channels
• Integrated voltage clamp protection to safeguard against input overvoltage conditions
• Low on-resistance design ensuring minimal signal attenuation during conduction
• Bidirectional data flow capability supporting flexible circuit topology

Applications

• Portable equipment requiring low-voltage signal routing
• Consumer electronics utilizing 2.5-V or 3.3-V logic interfaces
• Computing products needing high-speed data bus switching
• Telecommunications infrastructure components

Procurement Notes

Verify the specific suffix 'DCUR' corresponds to the VSSOP-8 package and reel packaging configuration. Confirm RoHS compliance status and ensure the operating voltage range matches the system requirements. Check for any recent product change notifications regarding assembly sites or material composition updates before finalizing procurement.

Selection Notes

Select this component when designing systems operating between 2.3 V and 3.6 V that require fast switching speeds. The 9 Ohm on-resistance makes it suitable for applications demanding low signal loss. Ensure the PCB layout accommodates the 8-VSSOP footprint and that the thermal environment remains within the specified -40 °C to +85 °C operational limits for reliable performance.

Part Context

This part belongs to the SN74CB3Q/3VH/3C/2B family of digital bus switches. It serves as a low-voltage alternative to higher voltage counterparts like the SN74CBTS3306DR, which operates up to 5.5 V. The device integrates level shifting capabilities and offers superior speed compared to standard CMOS switches, fitting into Texas Instruments' portfolio of high-performance logic solutions.

Replacement Considerations

SN74CB3Q3306ADCUR shares identical electrical specifications and pinout but utilizes a different manufacturer prefix designation.