The TC74HC123AFN is a high-speed CMOS dual retriggerable monostable multivibrator fabricated with silicon gate C2MOS technology. It features a wide supply voltage range and excellent stability, making it suitable for various timing and pulse generation applications. Each multivibrator has independent trigger inputs and output pulse width control.

Applications

• Timers
• Pulse generators
• Missing pulse detectors
• Time delay circuits
• Frequency dividers

Features

• High-speed: fmax = 60 MHz (typ.) at VCC = 5V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• Retriggerable monostable operation
• Wide supply voltage range: VCC = 2V to 6V
• Output pulse width control
• High noise immunity: VNIH = VNIL = 28 % VCC (min)
• Output drive capability: 10 LSTTL loads

Benefits

• Precise timing and pulse generation
• Flexibility in pulse width adjustment
• Stable operation over a wide supply voltage range
• Low power consumption for energy-efficient applications
• High noise immunity for reliable operation in noisy environments
• Easy integration with other logic devices

Additional Details

The TC74HC123AFN is supplied in a SOP16 (Small Outline Package) package. The output pulse width is determined by the external timing resistor (RT) and capacitor (CT) values. The device can be triggered by either a positive or negative-going input signal. The clear input allows for asynchronous resetting of the output. The device incorporates protection circuits against static discharge, preventing damage during handling and assembly. The operating temperature range is -40°C to 85°C.