SN74CBTD3861DBR

Overview

The SN74CBTD3861DBR is a digital bus switch manufactured by Texas Instruments, belonging to the 74CBTD series. It features a 10 x 1:1 circuit configuration within a single independent circuit block. The device operates on a single power supply with a 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-SSOP package with a width of 5.30mm (0.209 inches) and is designed for surface mount installation. The component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) rating of 1.

Feature Summary

• Provides bidirectional data transmission through ten independent 1-to-1 channels.
• Integrates level shifting capabilities to facilitate signal translation between different voltage domains.
• Utilizes FET-based switching technology for low on-resistance performance.

Applications

• High-speed data bus switching in portable electronic devices
• Level shifting interfaces between 3.3V and 5V logic systems
• Signal routing in consumer electronics and industrial control modules

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the 24-SSOP package and tape-and-reel packaging format when sourcing. Confirm that the required operating voltage aligns with the 4.5V to 5.5V specification. Ensure compatibility with the -40°C to +85°C industrial temperature range for the intended application environment. Check for any recent Product Change Notifications regarding material or design revisions.

Selection Notes

Select this component when a high-density 10-bit bus switch with integrated level shifting is required in a compact surface-mount form factor. The 24-SSOP package offers a smaller footprint compared to SOIC alternatives while maintaining similar electrical characteristics. Consider the 74CBTD series for applications demanding faster propagation delays than standard 74CBT variants. Evaluate pin count and channel density against system architecture requirements before finalizing the design.

Part Context

This part belongs to the Texas Instruments 74CBTD family of digital bus switches. The 'D' suffix indicates the inclusion of level-shifting functionality, distinguishing it from the base 74CBT3861 model. The 'B' denotes the SSOP package type, while 'R' specifies the reel packaging. This variant shares core electrical specifications with other members of the 74CBTD3861 family but differs in physical dimensions and mounting style.

Replacement Considerations

SN74CBTD3861DWR serves as a direct functional substitute with identical electrical parameters but utilizes a 24-SOIC package instead of SSOP. SN74CBTD3861PWR is another alternative offering the same functionality in a 24-TSSOP package. Verify pinout compatibility and thermal performance differences when transitioning between these package types.