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
Attribute
Details
Supply Voltage Range
4.5V to 5.5V
Trigger Type
Edge-triggered
Package Type
DIP, SO, TSSOP, etc.
Temperature Range
-40°C to +125°C
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.
