SN74LVC257ADB

Overview

The SN74LVC257ADB is a quadruple 2-line to 1-line data selector/multiplexer featuring 3-state outputs, manufactured by Texas Instruments. It belongs to the LVC logic family and operates within a supply voltage range of 1.65V to 3.6V. The device provides four independent multiplexing channels with shared select and output enable inputs. It utilizes a 16-pin Small Outline Integrated Circuit (SOIC) package designed for surface-mount technology applications.

Feature Summary

• Provides four independent 2-to-1 multiplexing channels with shared control inputs
• Features 3-state outputs compatible with bus-oriented systems
• Supports low-voltage operation from 1.65V to 3.6V
• Designed for high-speed signal selection in digital circuits

Applications

• I/O expanders
• Motor drives
• Server infrastructure
• Network switches
• Telecommunications equipment

Procurement Notes

Verify the specific suffix 'ADB' against official Texas Instruments documentation to confirm exact package dimensions and tape-and-reel specifications. Ensure compatibility with target PCB footprint and reflow soldering profiles. Confirm RoHS compliance status and moisture sensitivity level requirements for the manufacturing environment.

Selection Notes

Select this component when designing systems requiring multiple independent data paths with low power consumption. The LVC series offers fast switching speeds suitable for modern digital interfaces. Consider the 16-SOIC package constraints regarding board space and thermal dissipation capabilities during the layout phase.

Part Context

This part is a member of the SN74LVC257A family, which includes variants with different packaging options such as PW (PWHT) and DR (DRG4). The 'ADB' designation specifically identifies the SOIC-16 package variant. It serves as a standard logic solution for signal routing in consumer electronics and industrial control systems.

Replacement Considerations

SN74LVC257ADBR: Same functional specification with SSOP-16 packaging.