74HC123PW,112

The 74HC123PW,112 is a dual retriggerable monostable multivibrator from Nexperia, designed for use in various digital applications. It is part of the 74HC (High-speed CMOS) family, which is known for its high-speed operation and low power consumption. Here’s a detailed description of its features and specifications:

General Description:

• Type: Dual Retriggerable Monostable Multivibrator
• Package: The device is housed in a TSSOP (Thin Shrink Small Outline Package) with a 16-pin configuration, denoted by the "PW" suffix. This package is compact and suitable for surface-mount applications.

Key Features:

• Dual Functionality: The 74HC123 contains two independent monostable multivibrators, allowing for versatile timing applications in a single package.
• Retriggerable: The device can be retriggered while in its timing cycle, which is useful for applications requiring pulse width modulation or timing adjustments based on external signals.
• Adjustable Pulse Width: The output pulse width can be adjusted by varying the external resistor and capacitor connected to the timing pins, providing flexibility in timing applications.
• High-Speed Operation: The device operates at high speeds, with a typical propagation delay of around 15 ns at a supply voltage of 5V, making it suitable for high-frequency applications.
• Low Power Consumption: The 74HC123 is designed to operate with low power, making it ideal for battery-powered devices and energy-efficient applications.
• Wide Supply Voltage Range: It operates over a supply voltage range of 2V to 6V, allowing for compatibility with various logic levels.
• TTL Compatible: The outputs are compatible with TTL (Transistor-Transistor Logic) levels, making it easy to interface with other digital logic families.

Pin Configuration:

The 74HC123PW,112 features 16 pins, which include:

• GND: Ground connection.
• VCC: Supply voltage connection.
• A and B: Trigger inputs for the two monostable sections.
• Q and Q': Output pins for the two sections, where Q is the output and Q' is the inverted output.
• Timing Pins: Pins for connecting external resistors and capacitors to set the timing characteristics.

Applications:

• Pulse Width Modulation: Used in motor control and signal modulation applications.
• Timing Circuits: Ideal for generating time delays in various electronic circuits.
• Frequency Division: Can be used in frequency division applications in digital systems.
• Event Counters: Useful in applications requiring event counting with adjustable timing.

Electrical Characteristics:

• Operating Temperature Range: Typically from -40°C to +125°C, making it suitable for a wide range of environmental conditions.
• Input and Output Voltage Levels: Defined thresholds for high and low states, ensuring reliable operation in digital circuits.

Conclusion:

The 74HC123PW,112 from Nexperia is a versatile and efficient dual retriggerable monostable multivibrator that offers high-speed performance, low power consumption, and flexibility in timing applications. Its compact package and wide operating voltage range make it an excellent choice for modern electronic designs.