SN74LV157AD

Overview

The SN74LV157AD is a quadruple 2-line to 1-line data selector/multiplexer from the Texas Instruments LV logic family. It operates within a supply voltage range of 2 V to 5.5 V and accepts input voltages up to 5.5 V. The device features a maximum propagation delay of 7.5 ns at 5 V and includes an active-low output strobe (G) input. It provides true data outputs for four independent channels, selecting between two sources based on an address select input.

Feature Summary

• Operates across a wide supply voltage range from 2 V to 5.5 V
• Inputs accept voltages up to 5.5 V for flexible interfacing
• Includes an active-low output strobe control pin
• Provides true data outputs for four independent channels

Applications

• Servers
• LED Displays
• Network Switches
• Telecom Infrastructure
• Motor Drivers

Procurement Notes

Verify the specific package type and status before procurement, as the SN74LV157AD designation may indicate obsolete production status compared to active variants like SN74LV157ADR or SN74LV157ADBR. Confirm RoHS compliance and lead finish details via the manufacturer's current orderable addendum. Ensure design compatibility with the SOIC-16 package dimensions and thermal characteristics specified in the datasheet.

Selection Notes

Select this component when a quadruple multiplexer with 5.5 V tolerant inputs is required for systems operating between 2 V and 5.5 V. Consider the SN74LV157A series for applications needing low power consumption and high noise immunity. Verify that the SOIC-16 package fits the board layout constraints and that the propagation delay meets the system timing requirements.

Part Context

The SN74LV157AD belongs to the SN74LV157A family of quadruple 2-line to 1-line data selectors/multiplexers manufactured by Texas Instruments. This family is designed for 2 V to 5.5 V VCC operation and offers robust latch-up performance exceeding 100 mA per JESD 78, Class II standards. The 'LV' designation indicates Low-Voltage CMOS technology optimized for low power and high-speed digital applications.

Replacement Considerations

Public confirmed substitute part numbers include SN74LV157ADR and SN74LV157ADBR. These variants share the same logical function but differ in packaging (SOIC vs SSOP) and production status.