SN74LVC157ADT

Overview

The SN74LVC157ADT is a quadruple 2-line to 1-line data selector/multiplexer from the Texas Instruments LVC logic family. It operates within a supply voltage range of 1.65V to 3.6V and supports an industrial temperature range of -40°C to 125°C. The device features a maximum propagation delay of 5.2ns at 3.3V and accepts input voltages up to 5.5V, facilitating translation in mixed-voltage systems. It is housed in a 16-pin SOIC package with small tape-and-reel packaging.

Feature Summary

• Provides four independent multiplexing channels for selecting between two data inputs per channel
• Features a common strobe (G) input that forces all outputs low when asserted high
• Supports 5.5V tolerant inputs for direct interfacing with 3.3V or 5V logic devices
• Includes robust electrostatic discharge protection exceeding 2000V human-body model standards

Applications

• Translating data between mixed 3.3V and 5V system environments
• Routing data from multiple sources to common output buses
• Implementing function generators using irregular logic configurations

Procurement Notes

Verify the specific ordering suffix 'DT' corresponds to the 16-pin SOIC package with small tape-and-reel carrier configuration. Confirm the active production status and RoHS compliance details via the manufacturer's official documentation before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring low-voltage operation down to 1.65V combined with 5V tolerance capabilities. Ensure the design accommodates the specified thermal resistance values for the SOIC package and adheres to layout guidelines regarding unused inputs and power supply bypassing.

Part Context

This part belongs to the SNx4LVC157A series of quadruple multiplexers manufactured by Texas Instruments. The series includes various package options such as WQFN, SSOP, SOP, TSSOP, and VQFN, all sharing identical logical functionality but differing in physical dimensions and thermal characteristics.

Replacement Considerations

SN74LVC157ADRG4