SN74CBTLV3257DR

Overview

The SN74CBTLV3257DR is a low-voltage FET-based multiplexer/demultiplexer from the Texas Instruments CBTLV series. It features four independent 1-of-2 switches in a 16-pin SOIC-Narrow package. The device operates on a single supply voltage ranging from 2.3 V to 3.6 V and supports bidirectional data flow. It functions within an industrial temperature range of -40°C to +85°C. The component is RoHS compliant, meets REACH standards, and carries an MSL rating of 1.

Feature Summary

• Low-voltage operation optimized for portable applications
• Four independent bidirectional 1-of-2 switch channels
• FET technology ensures low on-resistance and minimal signal distortion

Applications

• Portable consumer electronics requiring low power consumption
• Battery-powered systems with limited voltage headroom
• Signal routing in mobile communication devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure the procurement documentation matches the exact part number SN74CBTLV3257DR to avoid confusion with automotive or alternative package variants. Confirm RoHS compliance status through official certification documents provided by Texas Instruments prior to finalizing orders.

Selection Notes

Select this component when designing circuits that require low-voltage signal switching between 2.3 V and 3.6 V supplies. The SOIC-Narrow package is suitable for surface-mount assembly where space efficiency is required. Consider the bidirectional nature of the FET switches for applications involving data buses or bidirectional communication lines. Verify thermal performance requirements against the specified operating temperature range.

Part Context

This device belongs to the SN74CBTLV3257 family of low-voltage bus exchangers. It serves as a general-purpose analog switch for digital and analog signals. The DR suffix indicates a specific reel packaging configuration for high-volume surface-mount production. It is distinct from automotive-grade variants which may carry different qualification standards and extended temperature ranges.

Replacement Considerations

PI3B3257ZHDEX is documented as a similar replacement option.