SN74CBTD3861DW

Overview

The SN74CBTD3861DW is a single-supply digital bus switch manufactured by Texas Instruments. It features a 10-bit, 1:1 bidirectional configuration housed in a 24-SOIC package. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -40°C to +85°C. It is designed for high-speed signal routing applications requiring low on-resistance and fast propagation characteristics.

Feature Summary

• Provides ten independent bidirectional data paths for efficient bus switching
• Integrates level shifting capabilities to facilitate voltage translation between different logic domains
• Utilizes FET technology to achieve low on-resistance for minimal signal attenuation

Applications

• High-speed data bus switching in computing systems
• Voltage level translation between 3.3V and 5V logic interfaces
• Signal routing in portable electronic devices

Procurement Notes

Verify the specific suffix 'DW' corresponds to the 24-SOIC package variant when sourcing. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Ensure the selected distributor provides traceable documentation matching the manufacturer's part number to avoid counterfeit components.

Selection Notes

Select this component when a single-package solution for ten bidirectional channels is required. The integrated level shifter distinguishes it from standard switches like the SN74CBT3861, eliminating external translation circuitry. Verify that the 4.5V minimum supply voltage aligns with the system power rails before finalizing the design.

Part Context

This part belongs to the SN74CBTD series, which extends the standard CBT family by adding level-shifting functionality. While the SN74CBT3861 offers similar switching topology without translation, the D-series variant simplifies designs involving mixed-voltage buses. It shares the same pinout as the LV version but operates at higher voltages.

Replacement Considerations

SN74CBTD3861DWR serves as the reel-pack equivalent. SN74CBTLV3861PW is a low-voltage alternative for 2.3V to 3.6V systems. SN74CBT3861DWR is a compatible option if level shifting is not required.