74HC123 DIP IC Dual Retriggerable Monostable Multivibrator (74HC123 IC)

The 74HC123 is a dual retriggerable monostable multivibrator integrated circuit designed for generating precise timing pulses in digital electronic systems. Each monostable circuit produces a single output pulse when triggered and the pulse width can be extended if additional trigger signals are received.

This IC belongs to the high speed CMOS logic family and provides reliable timing control with low power consumption. The output pulse duration is determined using external resistor and capacitor components making it suitable for timing delay circuits pulse generation and signal conditioning applications. The DIP package allows easy integration into breadboard prototypes and PCB based circuit designs.

Key Features

• Dual retriggerable monostable multivibrator
• Generates controlled timing pulses
• Retriggerable operation extends output pulse duration
• External resistor and capacitor control pulse width
• High speed CMOS logic family
• Suitable for timing delay and pulse generation circuits
• DIP package suitable for prototyping and PCB mounting

Specifications

• IC Model = 74HC123
• Logic Type = Dual retriggerable monostable multivibrator
• Number Of Circuits = 2
• Logic Family = HC CMOS
• Package Type = DIP
• Pin Count = 16
• Operating Voltage = 2V to 6V
• Pulse Control = External resistor and capacitor

Interfaces

• A1 = Trigger input circuit 1
• B1 = Trigger input circuit 1
• CLR1 = Clear input circuit 1
• Q1 = Output circuit 1
• Q1BAR = Inverted output circuit 1
• RC1 = External resistor capacitor connection circuit 1
• A2 = Trigger input circuit 2
• B2 = Trigger input circuit 2
• CLR2 = Clear input circuit 2
• Q2 = Output circuit 2
• Q2BAR = Inverted output circuit 2
• RC2 = External resistor capacitor connection circuit 2
• VCC = Power supply
• GND = Ground