M74HC126RM13TR

Overview

The M74HC126RM13TR is a high-speed CMOS quad bus buffer featuring three-state outputs, manufactured using silicon gate C2MOS technology. It operates within a wide supply voltage range of 2 V to 6 V and includes input protection against static discharge and transient excess voltage. The device provides symmetrical output impedance with minimum drive currents of 6 mA for both high and low states. It ensures balanced propagation delays and maintains compatibility with standard 74 series pinouts.

Feature Summary

• Quad configuration providing four independent non-inverting buffers
• Three-state output capability controlled by an active-high enable signal
• High noise immunity with hysteresis characteristics on inputs
• Symmetrical output impedance ensuring consistent drive strength

Applications

• Data bus buffering in microprocessor systems
• Clock distribution networks requiring signal isolation
• Memory interface circuits for address and data lines
• Industrial control systems utilizing noisy environments

Procurement Notes

Verify the specific suffix RM13TR against official STMicroelectronics documentation to confirm package type and reel specifications. Confirm RoHS compliance status and AEC-Q100 automotive qualification requirements directly from the datasheet before procurement. Ensure the ordering part number matches the exact functional and physical characteristics required for the design.

Selection Notes

Select this component when a quad buffer with three-state control is required for bus arbitration or signal isolation. It is suitable for designs needing operation across a broad voltage range from 2 V to 6 V. Consider its high noise immunity and ESD protection features for robust performance in industrial applications where signal integrity is critical.

Part Context

This component belongs to the M74HC126 series of high-speed CMOS logic devices. It is functionally compatible with other industry-standard 74HC126 equivalents but utilizes STMicroelectronics' specific C2MOS fabrication process. The series is designed for general-purpose digital applications requiring reliable buffering and driving capabilities.

Replacement Considerations

Direct substitutes include SN74HC126DBR from Texas Instruments and MC74HC126N from ON Semiconductor. Verify pinout compatibility and electrical parameters such as propagation delay and output current before substitution.