SN74CBTD3861PWE4

Overview

The SN74CBTD3861PWE4 is a digital bus switch IC manufactured by Texas Instruments. It features a 10-bit configuration with level shifting capabilities, housed in a 24-pin TSSOP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transfer. Key electrical specifications include a maximum on-resistance of 7 ohms and a maximum propagation delay of 350 ps. It functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates ten independent FET-based bus switches for high-density signal routing
• Includes built-in level shifting to interface between different logic voltage domains
• Supports bidirectional data flow with low on-resistance for minimal signal distortion

Applications

• High-speed data bus switching in computing systems
• Level translation between 5V and lower voltage logic interfaces
• Signal routing in portable electronic devices requiring low power consumption

Procurement Notes

Verify the specific suffix E4 indicates lead-free compliance and RoHS status against current manufacturer documentation. Confirm the TSSOP-24 package dimensions match your PCB footprint requirements. Ensure the 4.5V to 5.5V operating voltage aligns with your system's power rails before finalizing procurement.

Selection Notes

Select this component when a single-package solution for ten channels is required alongside voltage level translation. Compare the 7-ohm on-resistance and 350-ps delay against alternative switches if signal integrity at higher frequencies is critical. Consider the TSSOP-24 form factor for space-constrained designs needing multiple isolated bus paths.

Part Context

This part belongs to the SN74CBTD series of digital bus switches from Texas Instruments. It shares functional similarities with the SN74CBT3861 but includes additional level-shifting features. The E4 suffix typically denotes environmental compliance variations within the same logical product family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.