74VHC157MX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74VHC157MX is a Quad 2-Input Multiplexer fabricated with advanced high-speed silicon gate CMOS technology. It provides four independent 2-input digital multiplexers sharing common Select and Enable inputs. The device operates within a DC supply voltage range of 2.0 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. It features input protection allowing 0 V to 5.5 V application regardless of supply voltage, enabling safe interfacing between 5 V and 3 V systems. The component is housed in a SOIC-16 package.

Signal Switches, Multiplexers, Decoders Feature Summary

• High-speed operation comparable to equivalent Bipolar Schottky TTL while maintaining low power dissipation.
• Integrated input protection circuitry prevents device destruction due to mismatched supply and input voltages.
• Active-low Enable input forces all outputs LOW when held HIGH, inhibiting data selection.
• Functionally compatible with the 74HC157 logic family.

Signal Switches, Multiplexers, Decoders Applications

• Moving data from two groups of registers to four common output buses.
• Implementing gating functions as a function generator for sixteen different functions of two variables.
• Interfacing 5 V systems with 3 V systems or battery backup architectures.

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix MX corresponds to the SOIC-16 package configuration before procurement. Confirm that the ordering information matches the required shipping format, such as tape and reel quantities. Ensure the selected variant meets the necessary environmental and RoHS compliance standards for the intended deployment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when high-speed switching is required alongside low power consumption. It is suitable for applications needing interface compatibility between differing voltage levels like 5 V and 3 V systems. Consider the SOIC-16 package constraints regarding board space and thermal management during the design phase.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74VHC series of logic integrated circuits manufactured by onsemi. The VHC series represents advanced high-speed CMOS technology designed to replace older bipolar technologies. The 74VHC157 specifically implements quad multiplexer functionality within this high-performance logic family.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AHC157PW

Signal Switches, Multiplexers, Decoders FAQ

How does the Enable input affect the outputs?

When the Enable input is held at a HIGH level, data selection is inhibited and all outputs are forced to a LOW level regardless of other inputs.

Can this device interface 5 V and 3 V systems?

Yes, the input protection circuit allows 0 V to 5.5 V to be applied to input pins without regard to the supply voltage, preventing destruction due to voltage mismatches.