M74HCT157RM13TR

Overview

The M74HCT157RM13TR is a high-speed CMOS quad 2-channel multiplexer fabricated with silicon gate C2MOS technology. It features four 2-input digital multiplexers sharing common select and strobe inputs. The device operates within a supply voltage range of 4.5V to 5.5V, with a typical propagation delay of 16ns at VCC = 4.5V. Quiescent supply current is 4μA maximum at 25°C. It provides symmetrical output impedance with |IOH| = IOL = 4mA minimum. Input levels are compatible with TTL outputs (VIH = 2V min, VIL = 0.8V max).

Feature Summary

• High-speed CMOS fabrication using silicon gate C2MOS technology.
• Quad 2-channel multiplexer architecture with common select and strobe inputs.
• TTL-compatible input voltage thresholds for direct interfacing.
• Symmetrical output impedance ensuring balanced signal drive capabilities.

Applications

• Data routing in digital logic systems requiring channel selection.
• Signal switching applications utilizing common control lines.
• Multiplexing operations where TTL-level compatibility is required.

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific package variant matches design requirements, as the M74HCT157 series includes DIP, SOP, and TSSOP options. Ensure compliance with RoHS directives if applicable to the manufacturing environment. Check for obsolescence status before finalizing procurement plans.

Selection Notes

Select this component when a quad 2-to-1 multiplexer with HCT logic compatibility is needed. It is suitable for designs requiring low power dissipation alongside standard TTL interface levels. Consider the SOIC-16 package for surface-mount assembly needs. Evaluate propagation delay specifications against system timing constraints to ensure adequate performance margins.

Part Context

This part belongs to the M74HCT157 family of quad multiplexers manufactured by STMicroelectronics. It utilizes advanced C2MOS technology to achieve high speed while maintaining low power consumption. The device is functionally pin-compatible with standard 74 series 157 components, facilitating straightforward upgrades or replacements in existing circuit architectures.

Replacement Considerations

CD74HCT157M96 from Texas Instruments is listed as a direct substitute. Verify pinout and electrical characteristics match before implementation.