TC74HC123AF(ELNE,F

Overview

The TC74HC123AF(ELNE,F) is a dual retriggerable monostable multivibrator manufactured by Toshiba Semiconductor and Storage. It utilizes high-speed silicon gate C2MOS technology to achieve operation speeds comparable to standard LS logic devices while maintaining low power consumption typical of CMOS circuits. The device operates within a supply voltage range of 2.0V to 6.0V, with a typical propagation delay of 25ns at 5V. It features Schmitt trigger inputs for noise immunity and is housed in a 16-pin SOP package.

Feature Summary

• Dual retriggerable monostable multivibrator configuration
• Schmitt trigger inputs for improved noise immunity
• High-speed operation compatible with LS logic levels
• Low power consumption characteristic of CMOS technology

Applications

• Timing pulse generation
• Frequency division
• Waveform shaping
• Delay line applications

Procurement Notes

Verify the complete part number including the suffix (ELNE,F) to ensure correct packaging and tape/reel specifications. Confirm the operating temperature range and voltage requirements match your system design. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards. Check for RoHS compliance documentation if required for your assembly process.

Selection Notes

Select this component when dual independent monostable circuits are required in a compact footprint. Consider the 25ns propagation delay and 2.0-6.0V operating range against system timing constraints. Evaluate the SOP package size relative to PCB space limitations. Ensure input signal levels are compatible with the Schmitt trigger thresholds specified in the electrical characteristics table.

Part Context

This component belongs to the TC74HC123A series of monostable multivibrators from Toshiba. It is part of the HC (High-speed CMOS) logic family, designed to offer performance improvements over earlier HMOS technologies. The series is widely used in digital systems requiring precise timing control and waveform modification functions.

Replacement Considerations

Compatible substitutes include other dual retriggerable monostable multivibrators from major manufacturers such as ON Semiconductor or NXP, provided pinouts and electrical characteristics align. Verify that alternative parts support the same 2.0-6.0V supply range and SOP-16 package dimensions.