SN74LVC257AQPWREP

Overview

The SN74LVC257AQPWREP is a quad 2-to-1 data selector/multiplexer from Texas Instruments, designed for bus-oriented systems. It operates within a supply voltage range of 2V to 3.6V and features three-state outputs that prevent loading of data lines when disabled. The device meets automotive standards with an operating temperature range of -40°C to +125°C and offers ESD protection exceeding 2000V per MIL-STD-883 Method 3015.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust performance in vehicle environments
• Three-state outputs isolate the multiplexer from the system bus when the output enable input is high
• High electrostatic discharge protection exceeding 2000V under MIL-STD-883 Method 3015 conditions

Applications

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

Procurement Notes

Verify the specific suffix 'REP' against the manufacturer's official documentation to confirm it denotes a recognized military or enhanced reliability variant rather than a standard commercial package. Ensure the ordering part number matches the exact pinout and electrical specifications required for your design, as suffixes can indicate distinct packaging or testing criteria.

Selection Notes

Select this component for designs requiring automotive-grade reliability and wide operating temperature ranges. It is suitable for applications needing multiple independent 2-to-1 selection paths with bus isolation capabilities. Consider the TSSOP-16 package constraints and verify that the 2V to 3.6V supply range aligns with the target system power rails.

Part Context

This part belongs to the SN74LVC257A family of multiplexers, which are engineered for low-voltage CMOS logic applications. The LVC series provides high-speed operation with reduced power consumption compared to older logic families. The automotive variant ensures compliance with stringent industry standards for durability and consistency in demanding electronic environments.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific automotive-enhanced variant were not identified in the provided source material.