CD74HC157E

Overview

The CD74HC157E is a high-speed CMOS quad 2-input multiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features a propagation delay of 11 ns at 5 V. The device provides four independent data selectors with true outputs, controlled by a common select input and an active-low enable. Designed for through-hole mounting, it utilizes a 16-pin PDIP package and supports an operating temperature range from -55 °C to +125 °C.

Feature Summary

• Provides four independent 2-to-1 data selection paths with true output logic
• Features a common select input for synchronized channel switching across all channels
• Includes an active-low enable input that forces all outputs low when deactivated

Applications

• Transferring data between two sets of registers onto a common bus
• Function signal generation circuits
• General-purpose digital data routing in industrial control systems

Procurement Notes

Verify the specific suffix 'E' corresponds to the PDIP-16 through-hole package configuration. Confirm RoHS compliance status via the official datasheet as indicated in manufacturer specifications. Ensure the ordering part number matches the exact logic family requirements for your design.

Selection Notes

Select this component when through-hole assembly is required for a quad multiplexer application. It serves as a pin-compatible alternative to LSTTL series devices while offering lower power consumption. Verify that the 2 V to 6 V operating voltage range aligns with the system's power supply rails.

Part Context

This device belongs to the CD74HC157 series of high-speed CMOS logic components. It is functionally compatible with the SN74HC157N variant but distinguished by its specific packaging and suffix designation. The HC series ensures compatibility with standard TTL logic levels while maintaining CMOS noise immunity.

Replacement Considerations

SN74HC157N