74HCT123PW

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74HCT123PW

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Monostable Multivibrator

  • HerstellerNexperia

  • Herstellerteil #74HCT123PW

  • Auf Lager26521

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Description

The 74HCT123PW is a high-speed CMOS monostable multivibrator. It's part of the 74HCT series, which is designed to operate with TTL-compatible logic levels. This IC is commonly used in timing applications, pulse generation, and delay circuits. The "HCT" in its name indicates that it utilizes high-speed CMOS technology while maintaining compatibility with TTL logic levels.
Key features of the 74HCT123PW include:
- Dual retriggerable monostable multivibrator design.
- Wide range of supply voltage: Typically operates from 4.5V to 5.5V.
- High noise immunity due to CMOS technology.
- TTL compatible inputs for seamless integration with TTL systems.
- Retriggerable capability allows the pulse width to be extended.
- Adjustable pulse width through external resistor-capacitor (RC) components.
- Available in a 16-pin package, commonly TSSOP or SOIC.
The device is widely employed in digital circuits where precise timing control is required, such as in pulse generation, time delay circuits, and frequency timing applications. Its versatility and compatibility make it a reliable choice for engineers and designers working with digital and mixed-signal systems.

Equivalent

The 74HCT123PW is a high-speed Si-gate CMOS device, and its equivalent products include:
1. 74HC123 from NXP (same family with different characteristics).
2. SN74HCT123 from Texas Instruments.
3. MC74HCT123 from ON Semiconductor.
4. CD74HCT123 from Texas Instruments.
Ensure to verify electrical characteristics and pin compatibility before substituting to confirm suitability for your specific application.

Features

The 74HCT123PW is a high-speed, dual retriggerable monostable multivibrator with reset feature. Key features include:
1. Logic Family: High-Speed CMOS (HCT)
2. Supply Voltage: Operates typically at 5V.
3. Input Levels: TTL-compatible inputs, making it suitable for integration with TTL systems.
4. Output: Q and Q̅ outputs are available.
5. Retriggerable: Allows pulse width extension by retriggering the input.
6. Reset Functionality: Equipped with an asynchronous reset input to immediately terminate the output pulse.
7. Pin Count: Typically available in a 16-pin package.
8. Propagation Delay: Fast response, offering quick signal processing.
9. Temperature Range: Typically operates in the commercial temperature range (-40°C to +85°C).
10. Low Power Consumption: Designed for efficient power usage.
11. Application Flexibility: Suitable for pulse generation, timing, and delay applications.
This IC is well-suited for a variety of applications that require precise timing and pulse width control, offering robust performance in digital circuit designs.

Pinout

The 74HCT123PW is a dual retriggerable monostable multivibrator IC with a pin count of 16. It is capable of producing precise timing pulses, with two independent monostable multivibrators in a single package.
Each monostable has the following pin configuration:
- A (1, 9): Trigger input
- B (2, 10): Complementary trigger input
- Rext/Cext (3, 11): External resistor-capacitor connections for timing control
- Q (4, 12): Output
- Q (5, 13): Complementary output
- Cext (6, 14): External capacitor for the timing control
- Vcc (16): Positive supply voltage
- GND (8): Ground
The 74HCT123PW is used in applications requiring precise timing and pulse generation, such as in delay circuits, astable oscillators, and pulse width modulation. Its retriggerable nature allows the input signal to extend the pulse duration, adding versatility in timing applications.

Manufacturer

The 74HCT123PW is manufactured by Nexperia, a global semiconductor company. Nexperia specializes in the production of discrete components, logic devices, and MOSFETs. Originally part of NXP Semiconductors, Nexperia became an independent entity in 2017. It focuses on high-volume production and is known for its efficiency, reliability, and quality in semiconductor manufacturing. The company serves a wide range of industries, including automotive, industrial, computing, and consumer electronics, providing essential components that are integral to the functionality of electronic devices.

Application

The 74HCT123PW is a dual retriggerable monostable multivibrator with reset, commonly used in various timing applications. Key application areas include pulse generation, where precise pulse width control is required, such as oscillators, timers, and delay circuits. It is also used in signal conditioning to convert irregular input signals into regular pulse sequences. In digital circuits, it serves in applications requiring pulse stretching, edge detection, or pulse-width modulation. Additionally, it's utilized in debounce circuits to clean up noisy signals from mechanical switches. Its versatility and reliability make it suitable for use in consumer electronics, industrial automation, and communication systems.

Package

The 74HCT123PW is a dual retriggerable monostable multivibrator with reset, housed in a TSSOP (Thin Shrink Small Outline Package) with 16 pins. It is designed for high-speed operations and is used in various timing applications.

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