Encyclopedia Entry: 74HC123DB,112

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator and Timer
• Characteristics: High-speed operation, low power consumption, wide operating voltage range
• Package: DB (Dual In-Line Package)
• Essence: Monostable multivibrator with retriggerable/resettable capability
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

The 74HC123DB,112 is a monostable multivibrator integrated circuit. It operates at high speeds while consuming low power. The IC can function within a wide operating voltage range, making it suitable for various applications.

Pin Configuration

The 74HC123DB,112 has a dual in-line package (DB) with a specific pin configuration. The pins are numbered as follows:

1. Pin 1: Input A
2. Pin 2: Input B
3. Pin 3: Ground (GND)
4. Pin 4: Reset (R)
5. Pin 5: Trigger (Tr)
6. Pin 6: Output (Q)
7. Pin 7: Control Voltage (CV)
8. Pin 8: VCC (Positive Power Supply)

Functional Features

The 74HC123DB,112 offers the following functional features:

• Monostable Operation: The IC functions as a monostable multivibrator, producing a single pulse output upon receiving a trigger signal.
• Retriggerable/Resettable Capability: The IC can be retriggered or reset during the timing cycle by applying appropriate signals to the reset pin.
• Adjustable Timing: The timing of the output pulse can be adjusted using an external control voltage applied to the control voltage pin.
• Stable Operation: The IC ensures stable and reliable operation even in high-speed applications.

Advantages and Disadvantages

Advantages of the 74HC123DB,112 include:

• High-speed operation allows for quick response times.
• Low power consumption reduces energy requirements.
• Wide operating voltage range enables compatibility with various systems.

Disadvantages of the 74HC123DB,112 include:

• Limited functionality as a monostable multivibrator and timer.
• Requires external components for complete circuit implementation.

Working Principles

The 74HC123DB,112 operates based on the principles of a monostable multivibrator. When triggered, it generates a single pulse output whose duration is determined by external timing components. The IC can be retriggered or reset during the timing cycle, allowing for flexibility in pulse generation.

Detailed Application Field Plans

The 74HC123DB,112 finds application in various fields, including:

1. Timing Circuits: It is commonly used in timing circuits where precise control over pulse duration is required.
2. Communication Systems: The IC can be utilized in communication systems for signal synchronization and pulse generation.
3. Industrial Automation: It finds application in industrial automation systems for controlling timing sequences and triggering specific actions.

Detailed and Complete Alternative Models

Alternative models that offer similar functionality to the 74HC123DB,112 include:

1. CD74HC123E: This IC is functionally equivalent to the 74HC123DB,112 but comes in a different package (DIP).
2. SN74HC123N: Another alternative with similar features, available in a DIP package.

These alternative models can be considered based on specific project requirements and availability.

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