SN74HC157NG4

Overview

The SN74HC157NG4 is a quadruple 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an operating temperature from -40°C to 85°C. The device features four independent multiplexers controlled by a common address select input and an active-low strobe input. It utilizes a 16-pin PDIP package.

Feature Summary

• Contains four independent 2-to-1 multiplexers with true outputs
• Features TTL-compatible CMOS inputs for direct interface with logic devices
• Includes an active-low strobe input that forces all outputs low

Applications

• Multiplexing and data routing applications
• Switching 4-bit data buses between source devices
• General-purpose digital logic signal selection

Procurement Notes

Verify the specific 'G4' suffix indicates lead-free compliance and RoHS status as per the manufacturer's documentation. Confirm the PDIP-16 package availability and ensure the operating temperature range meets system requirements. Cross-reference the datasheet revision date to confirm current electrical characteristics.

Selection Notes

Select this component when a quad 2-to-1 multiplexer with standard CMOS inputs is required. Ensure the application voltage falls within the 2V to 6V range. Consider the propagation delay specifications relative to the system clock speed. Verify that the load capacitance does not exceed recommended limits to maintain performance.

Part Context

This part belongs to the SNx4HC157 family of high-speed silicon gate CMOS multiplexers. It provides a cost-effective solution for data selection tasks in digital systems. The HC series offers wide voltage operation and compatibility with various logic families, making it suitable for general-purpose computing and control circuits.

Replacement Considerations

SN74HC157N is a compatible alternative within the same product family.