Encyclopedia Entry: 74F112SJ

Product Overview

Category

The 74F112SJ belongs to the category of integrated circuits (ICs) specifically designed for digital logic applications.

Use

This IC is commonly used in electronic devices and systems where digital signal processing and logic operations are required.

Characteristics

• The 74F112SJ is a dual negative-edge triggered JK flip-flop.
• It operates on a wide voltage range, typically between 4.5V and 5.5V.
• This IC offers high-speed operation, making it suitable for time-critical applications.
• It has a compact package size, allowing for space-efficient circuit designs.

Package

The 74F112SJ is available in a small outline integrated circuit (SOIC) package. This package type provides ease of handling and compatibility with modern assembly techniques.

Essence

The essence of the 74F112SJ lies in its ability to store and manipulate binary information using JK flip-flops. It enables sequential logic operations within electronic systems.

Packaging/Quantity

The 74F112SJ is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2.0V (min)
• Low-Level Input Voltage: 0.8V (max)
• High-Level Output Voltage: 2.7V (min)
• Low-Level Output Voltage: 0.5V (max)
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 10ns (typical)

Detailed Pin Configuration

The 74F112SJ features a 16-pin SOIC package with the following pin configuration:

1. CLR (Clear Input)
2. CLK (Clock Input)
3. J1 (J Input for Flip-Flop 1)
4. K1 (K Input for Flip-Flop 1)
5. Q1 (Output of Flip-Flop 1)
6. Q̅1 (Complementary Output of Flip-Flop 1)
7. GND (Ground)
8. Q̅2 (Complementary Output of Flip-Flop 2)
9. Q2 (Output of Flip-Flop 2)
10. K2 (K Input for Flip-Flop 2)
11. J2 (J Input for Flip-Flop 2)
12. VCC (Positive Power Supply)

Functional Features

The 74F112SJ offers the following functional features:

• Dual JK flip-flops with negative-edge triggering.
• Asynchronous clear input to reset the flip-flops.
• Clock input for synchronized operation.
• Individual J and K inputs for each flip-flop, allowing flexible logic manipulation.
• Complementary outputs for both flip-flops.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient processing of digital signals.
• Compact package size saves space in circuit designs.
• Wide voltage range allows compatibility with various systems.
• Asynchronous clear input provides flexibility in resetting the flip-flops.

Disadvantages

• Limited functionality compared to more advanced ICs.
• Requires external components for complete system integration.
• Not suitable for low-power applications due to higher power consumption.

Working Principles

The 74F112SJ operates based on the principles of sequential logic using JK flip-flops. It stores binary information and performs logic operations based on the clock signal and input values. The negative-edge triggering ensures that changes in the input are captured at the falling edge of the clock pulse.

Detailed Application Field Plans

The 74F112SJ finds applications in various fields, including:

1. Digital signal processing systems
2. Microcontrollers and microprocessors
3. Communication devices
4. Industrial automation
5. Robotics

Detailed and Complete Alternative Models

Some alternative models to the 74F112SJ include:

1. 74LS112: A similar dual JK flip-flop IC with TTL logic levels.
2. CD4027: Dual JK flip-flop IC with complementary outputs and versatile operating voltage range.
3. SN74HC112: High-speed CMOS dual JK flip-flop with asynchronous clear input.

These alternative models offer similar functionality and can be used as substitutes for the 74F112SJ in various applications.

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