SN74HC157APWRG4

Overview

The SN74HC157APWRG4 is a quadruple 2-line to 1-line data selector/multiplexer from Texas Instruments, belonging to the SN74HC157 series. It features four independent multiplexers in a single package, routing one of two data inputs to a common output based on select lines. The device operates within a supply voltage range of 2 V to 6 V and supports surface-mount installation in a 16-TSSOP package. It provides true data outputs with low power consumption and high noise immunity suitable for general-purpose digital applications.

Feature Summary

• Integrates four independent 2-to-1 multiplexers for parallel data selection
• Operates across a wide supply voltage range from 2 V to 6 V
• Features low static power consumption typical of HC logic families
• Provides high noise immunity and balanced propagation delays

Applications

• Data routing in embedded systems
• Address decoding circuits
• Signal switching in industrial control panels
• General-purpose digital logic interfacing

Procurement Notes

Verify the 'A' suffix indicates automotive qualification or specific temperature grade variations compared to standard commercial variants. Confirm RoHS compliance status as indicated by the G4 suffix. Ensure the TSSOP-16 package dimensions match PCB footprint requirements. Check for end-of-life notices or lifecycle changes directly from Texas Instruments documentation before finalizing procurement plans.

Selection Notes

Select this component when four independent 2-to-1 data paths are required in a compact surface-mount form factor. Compare against SN74HC157PWR for commercial grade alternatives if automotive specifications are not mandatory. Evaluate propagation delay and power dissipation limits against system timing constraints. Consider the operating temperature range specified for the 'A' suffix variant relative to environmental conditions.

Part Context

This part belongs to the Texas Instruments SN74HC157 family of quadruple multiplexers. It shares functional compatibility with other members like SN74HC157N and SN74HC157PW but differs in packaging and potential qualification grades. The HC logic family offers CMOS performance with TTL-compatible inputs, bridging legacy design requirements with modern low-power standards.

Replacement Considerations

SN74HC157PWR serves as a direct pin-compatible alternative within the same manufacturer's portfolio. Verify electrical characteristics and package tolerance differences between the A-series and standard commercial versions before substitution.