The HD74HC123AFPEL-E is a dual retriggerable monostable multivibrator with clear input from Renesas Electronics America. This device is part of the 74HC family, known for its high-speed operation and low power consumption.

Applications:

• Timers
• Pulse stretchers
• Missing pulse detectors
• Frequency dividers
• Sequential timing circuits

Features:

• Retriggerable monostable operation
• Wide operating voltage range: 2V to 6V
• Clear input for asynchronous reset
• Pulse width can be varied from nanoseconds to seconds
• High noise immunity
• Fanout (over temperature range): Standard outputs: 10 LSTTL loads
• Packages: SOP-16 (FPEL)

Benefits:

• Versatile timing functions
• Simplified system design due to wide operating voltage range
• Easy system reset with the clear input
• Adjustable pulse width for various applications
• Reliable operation in noisy environments

Additional Details:

The HD74HC123AFPEL-E contains two independent monostable multivibrators. Each multivibrator features a trigger input (A and B), a clear input (CLR), and a timing capacitor (CX) and resistor (RX) connection. Applying a negative-going pulse to the A input or a positive-going pulse to the B input triggers the multivibrator. The output pulse width is determined by the values of the external resistor and capacitor. The FPEL suffix indicates a surface-mount package (SOP-16), making it suitable for automated assembly processes.

Key Specifications:

• Supply Voltage (VCC): 2V to 6V
• Input Voltage (VI): 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Quiescent Supply Current (ICC): 4 µA (maximum) at VCC = 5V
• Pulse Width (tw): Determined by RX and CX values

The HD74HC123AFPEL-E is commonly used in timing circuits, industrial control systems, and other applications where precise pulse generation is required.