SN74CBT3305CD

Overview

The SN74CBT3305CD is a dual FET bus switch manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 66 MHz. The device features a maximum on-resistance of 12 ohms and a propagation delay of 150 ps. It functions across an extended temperature range from -40°C to +85°C. Key electrical characteristics include low power consumption with a maximum supply current of 3 µA. The component provides -2 V undershoot protection for input signals.

Feature Summary

• Dual-channel architecture providing independent control over two signal paths
• -2 V undershoot protection capability for robust signal integrity
• Low on-resistance design ensuring minimal signal attenuation
• High-speed switching performance suitable for high-frequency applications

Applications

• Portable equipment requiring low power consumption
• Consumer electronics utilizing high-speed data buses
• Computing systems needing efficient signal routing
• Telecommunications infrastructure components

Procurement Notes

Verify the specific suffix 'CD' corresponds to the standard 8-SOIC package variant when sourcing. Confirm that the ordering part number matches the exact pinout and thermal specifications required for your PCB layout. Ensure compatibility with your system's voltage levels and signal requirements before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring dual-channel bus switching with low insertion loss. It is suitable where space constraints favor the compact 8-SOIC package. Consider its operating voltage range and temperature specifications to ensure reliability in your specific environmental conditions. Evaluate its speed capabilities against your system's data rate requirements.

Part Context

This device belongs to the SN74CBT3305C series of digital bus switches. It is designed as a complementary metal-oxide-semiconductor (CMOS) logic component. The series focuses on providing efficient signal path management in portable and consumer electronic devices. It serves as a critical interface element for managing multiple data sources or destinations.

Replacement Considerations

Check for direct substitutes within the same family, such as the SN74CBT3305CDR for tape-and-reel packaging. Verify pin-to-pin compatibility with other dual FET bus switches if alternative suppliers are considered. Ensure any replacement maintains the same voltage range and package dimensions.