The NXP 74HCT123 is a high-speed Si-gate CMOS device that is pin compatible with low power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard no. 7A. The 74HCT123 is a dual retriggerable monostable multivibrator with output pulse width control by three methods. This device is designed for use in applications requiring precise timing and high noise immunity.

Key Features

• Direct replacement for TTL: operates at a voltage range of 4.5V to 5.5V.
• Two independent channels with retriggerable functionality for versatile timing applications.
• Output pulse width can be controlled with external resistor and capacitor (Rext/Cext).
• Triggering from the leading or trailing edge for each channel.
• Output capability: standard ICC category: MSI.
• High noise immunity characteristic of CMOS devices.
• Compliant with JEDEC standard no. 7A, ensuring industry standardization.
• ESD protection: HBM JESD22-A114E exceeds 2000V, MM JESD22-A115-A exceeds 200V.
• Multiple package options available for design flexibility.

Applications

The 74HCT123 is suitable for a wide range of timing applications in various electronic systems. It can be used in:

• Pulse shaping and timing circuits.
• Delayed pulse generation.
• Industrial controls.
• Waveform generation.
• Sequential logic circuits.

Technical Specifications

For detailed information regarding the NXP 74HCT123, including pin configurations, timing diagrams, and electrical characteristics, please refer to the official datasheet provided by NXP Semiconductors.