SN74CBT3861DBQRG4

Overview

The SN74CBT3861DBQRG4 is a single-supply bus switch manufactured by Texas Instruments, belonging to the 74CBT series. It integrates ten independent 1:1 bidirectional switches within a single package. The device operates with a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -40°C to +85°C. It is housed in a 24-pin VQFN package measuring 4mm x 4mm with a 0.5mm pitch. The component is RoHS compliant and currently active in production.

Feature Summary

• Integrates ten independent bidirectional data paths for high-density signal routing
• Supports single-supply operation within standard logic voltage ranges
• Features low on-resistance for efficient signal transmission across buses

Applications

• High-speed parallel bus switching applications
• Data bus multiplexing in computing systems
• Signal path selection in peripheral interfaces

Procurement Notes

Verify the specific suffix 'RG4' indicates RoHS compliance and green manufacturing status as per Texas Instruments documentation. Confirm the VQFN package dimensions match the design footprint requirements. Ensure the operating voltage aligns with the 4.5V to 5.5V specification before integration into the target circuit design.

Selection Notes

Select this component when a high channel count is required in a compact surface-mount form factor. The 24-pin VQFN package offers space efficiency compared to larger SOIC or TSSOP alternatives. Verify that the system power supply remains stable within the specified 4.5V to 5.5V range to ensure proper switching functionality and signal integrity.

Part Context

This part belongs to the Texas Instruments 74CBT family of bus switches, designed for high-speed data transfer. The base model number is SN74CBT3861. The 'DWR' suffix typically denotes a 24-SOIC package, while 'DBQRG4' specifies the 24-VQFN variant with environmental compliance features. This family provides a cost-effective solution for managing multiple bidirectional data lines.

Replacement Considerations

SN74CBT3861DWR (SOIC-24 package)

FAQ

What is the maximum operating voltage for the SN74CBT3861DBQRG4?

The device is rated for a supply voltage range of 4.5V to 5.5V.

How many independent switches are contained in this IC?

The SN74CBT3861DBQRG4 contains ten independent 1:1 bidirectional switches.