SN74CBT1G384DCKR

Overview

The SN74CBT1G384DCKR is a single-channel, 1:1 bus switch manufactured by Texas Instruments. It operates on a single power supply ranging from 4.5V to 5.5V and supports signal levels up to 5.5V. The device is housed in a SC-70-5 surface-mount package and functions within an operating temperature range of -40°C to 85°C. Designed for high-speed data transmission, it provides low on-resistance and minimal signal distortion, making it suitable for applications requiring efficient level shifting and bidirectional data flow control in digital systems.

Feature Summary

• Provides bidirectional data transfer between two ports with a single control pin for easy interface integration
• Supports voltage translation between different logic domains without external components
• Features low on-resistance to minimize signal attenuation and maintain data integrity during transmission

Applications

• Level shifting between 3.3V and 5V logic interfaces
• Bidirectional data bus switching in embedded systems
• Portable equipment requiring space-efficient signal routing

Procurement Notes

Verify the specific suffix DCKR corresponds to the SC-70-5 package and tape-and-reel orientation before procurement. Confirm that the 4.5V to 5.5V supply requirement aligns with the target system's voltage rails. Ensure compatibility with the intended signal frequencies and check for any recent product change notifications regarding manufacturing sites or materials.

Selection Notes

Select this component when a single-channel, bidirectional switch is required for 5V-compatible logic families. It is appropriate for designs needing compact packaging solutions like SC-70-5. Consider alternative channels if multiple independent switches are needed, or lower voltage variants if the system operates below 4.5V. Evaluate propagation delay specifications against the maximum clock speeds of the connected devices.

Part Context

This part belongs to the Texas Instruments SN74CBT series of bus switches, which are designed for high-speed, low-voltage applications. The CBTD variant specifically indicates features optimized for driving capacitive loads and providing robust signal integrity. It serves as a fundamental building block for managing data paths in complex digital circuits where voltage domain isolation or signal routing is necessary.

Replacement Considerations

Check for direct equivalents such as the SN74CBT1G384DBVR or SN74CBT1G384DCKT, ensuring package and reel specifications match. Verify functional compatibility with other single-channel bus switches from the same family, confirming identical pinouts and electrical characteristics to avoid redesign efforts.