74VHC157MX

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74VHC157MX is a high-speed Quad 2-to-1 Line data selector/multiplexer utilizing advanced silicon-gate CMOS technology. It integrates four independent multiplexers with common select and strobe inputs, enabling the routing of 4-bit words from one of two sources to four outputs. The device operates within a wide power supply range of 2V to 6V, offering low power consumption and high noise immunity. It features buffered inputs and outputs, ensuring compatibility with standard logic families while maintaining fast switching speeds suitable for complex digital systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates four independent 2-input multiplexers with shared selection control
• Utilizes advanced silicon-gate CMOS technology for high speed and low power
• Provides buffered inputs and outputs for enhanced signal integrity
• Includes internal diode clamps on all inputs for static discharge protection

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital communication systems
• Memory address decoding applications
• General-purpose data selection circuits
• Interface between different logic voltage levels

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer marking and date code against official Fairchild Semiconductor documentation to confirm authenticity. Ensure the package type matches the required PCB footprint specifications. Check for RoHS compliance status if environmental regulations apply to the target assembly. Confirm that the operating temperature range meets the specific environmental requirements of the end-use application before finalizing procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad multiplexer function is required with CMOS compatibility. It serves as a direct pin-compatible replacement for the 74LS157 family, offering improved speed and lower power dissipation. Consider the 2V to 6V supply range suitability for the system architecture. Verify that the input protection features align with the expected electrostatic discharge conditions of the operational environment.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74VHC logic family, which combines the high speed of AC/VHC series with the low power characteristics of HC/UH series. It is designed for general-purpose digital applications requiring reliable data selection. The device is manufactured using silicon-gate CMOS processes, ensuring robust performance across varying supply voltages and temperatures typical of industrial and commercial electronic equipment.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The MM74HC157N is a functionally equivalent alternative from Fairchild Semiconductor. Other manufacturers may offer compatible parts under the 74VHC157 designation, but verification of electrical parameters and pinout compatibility is essential before substitution.