Encyclopedia Entry: 74AHC123AD,112

Product Overview

Category

The 74AHC123AD,112 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as timing and pulse generation.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL and CMOS logic levels

Package

The 74AHC123AD,112 is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of this product lies in its ability to provide precise timing control and pulse generation in digital circuits.

Packaging/Quantity

The 74AHC123AD,112 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2 V to 6 V
• High-Level Input Voltage: 0.7 x VCC
• Low-Level Input Voltage: 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC
• Low-Level Output Voltage: 0.1 x VCC
• Maximum Operating Frequency: 125 MHz
• Propagation Delay: 5 ns

Detailed Pin Configuration

The 74AHC123AD,112 has 16 pins arranged as follows:

__ __ | 1|__|16| | 2 15| | 3 14| | 4 13| | 5 12| | 6 11| | 7 10| | 8 9| ‾‾ ‾‾

Pin Description: 1. Clear Input (CLR) 2. A Input 3. B Input 4. Control Input (CLK) 5. Output (Q) 6. Complementary Output (/Q) 7. Ground (GND) 8. Output Enable (OE) 9. VCC

Functional Features

• Clear Input (CLR): Resets the internal flip-flop and sets the output to a low state when activated.
• A and B Inputs: These inputs control the timing and pulse generation functions of the IC.
• Control Input (CLK): Determines the behavior of the IC based on the input signal.
• Output (Q): Provides the main output signal.
• Complementary Output (/Q): Provides the inverted output signal.
• Ground (GND): The reference voltage for the IC.
• Output Enable (OE): Enables or disables the outputs.
• VCC: The supply voltage for the IC.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient timing control.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Compatibility with TTL and CMOS logic levels ensures compatibility with different systems.

Disadvantages

• Limited maximum operating frequency compared to some other ICs.
• May require additional external components for certain applications.

Working Principles

The 74AHC123AD,112 is based on flip-flop circuits and utilizes internal timing elements to generate precise pulses and timing signals. It operates by receiving input signals through the A and B inputs, which are then controlled by the CLK input. The output signals are generated based on the input conditions and timing parameters.

Detailed Application Field Plans

The 74AHC123AD,112 finds applications in various fields, including: 1. Timing and synchronization circuits 2. Pulse width modulation (PWM) generators 3. Frequency division circuits 4. Digital communication systems 5. Industrial automation

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the 74AHC123AD,112 are: - 74HC123 - CD74AC123 - SN74LS123

These models offer similar functionality and characteristics, providing options for different design requirements.

In conclusion, the 74AHC123AD,112 is a versatile integrated circuit used for precise timing control and pulse generation in digital electronics. Its high-speed operation, low power consumption, and compatibility with different logic levels make it suitable for various applications in fields such as timing circuits, PWM generators, and industrial automation.