SN74CBTD1G125DCKT

Overview

The SN74CBTD1G125DCKT is a single FET digital bus switch manufactured by Texas Instruments, designed for low-voltage applications. It operates within a supply voltage range of 4.5 V to 5.5 V and features a 5-V tolerant level shifter, enabling signal path translation between different voltage domains. The device provides powered-off protection to prevent current leakage when the power supply is off. Packaged in a SC-70-5 (SOT-23-5) surface-mount case, it supports an operating temperature range from -40°C to +85°C. Key electrical characteristics include a maximum on-state resistance of 35 Ohms and a typical propagation delay of 250 ps.

Feature Summary

• Integrates a 5-V tolerant level shifter for seamless signal translation across mixed-voltage interfaces.
• Provides robust powered-off protection to isolate circuits and prevent unwanted back-powering.
• Delivers high-speed performance with low on-state resistance for efficient data transmission.

Applications

• Level shifting between 3.3-V and 5-V logic systems
• Hot-swap bus switching applications requiring powered-off protection
• Signal path translation in mixed-voltage embedded systems

Procurement Notes

Verify that the ordering suffix 'DCKT' corresponds to the SC-70-5 package and tape-and-reel packaging configuration as specified in the official datasheet. Confirm that the component meets the required RoHS compliance standards and matches the manufacturer's part number exactly to ensure compatibility with design specifications.

Selection Notes

Select this component when a single-channel bus switch with 5-V tolerance and powered-off protection is required. It is suitable for designs needing signal translation between 3.3-V and 5-V domains. Consider the SC-70-5 package size for space-constrained layouts and verify that the 4.5-V to 5.5-V supply range aligns with the system power architecture.

Part Context

This part belongs to the SN74CBTD1G125 family of single FET bus switches from Texas Instruments. It is specifically engineered for low-voltage applications where signal integrity and voltage translation are critical. The device complements other bus switches in the series by offering integrated level shifting capabilities within a compact surface-mount package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference options through official manufacturer channels or authorized distributors if alternative sourcing is necessary.