74VHC157MTR

Signal Switches, Multiplexers, Decoders Overview

The STMicroelectronics 74VHC157MTR is a quad 2-channel multiplexer fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It features four non-inverting digital multiplexers with common select and strobe inputs. The device operates within a supply voltage range of 2V to 5.5V, providing high-speed performance with a typical propagation delay of 4.1 ns at VCC = 5V. It offers low power dissipation with a maximum quiescent current of 4 µA at 25°C and symmetrical output impedance with minimum drive currents of 8 mA for both high and low states.

Signal Switches, Multiplexers, Decoders Feature Summary

• Advanced CMOS fabrication utilizing sub-micron silicon gate and double-layer metal wiring C2MOS technology
• Power down protection on all inputs allowing 0 to 7V acceptance regardless of supply voltage
• High noise immunity with input levels defined as 28% of VCC minimum
• Balanced propagation delays ensuring tPLH is approximately equal to tPHL

Signal Switches, Multiplexers, Decoders Applications

• Routing data signals between multiple sources to a single destination
• Interfacing 5V logic environments with 3V logic systems
• Digital signal selection in microprocessor-based systems

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary markets. Ensure that any replacement components maintain pin compatibility and electrical specifications suitable for the existing design constraints. Review datasheet revisions for any functional changes prior to integration.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for applications requiring quad multiplexing with common control lines. Consider the 2V to 5.5V operating range for flexibility in various logic families. Evaluate the 4.1 ns typical propagation delay against system timing requirements. Verify that the SOP-16 package fits the available board space and manufacturing capabilities.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74VHC series of advanced high-speed CMOS logic devices. It is functionally compatible with the standard 74 Series 157 but offers improved speed and lower power consumption. The MTR suffix indicates it is supplied in tape and reel packaging, suitable for automated surface-mount assembly processes.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include the 74VHC157TTR (TSSOP-16 package) from the same manufacturer. Cross-manufacturer equivalents such as the SN74VHC157 from Texas Instruments may be considered if pinout and electrical characteristics are verified.