Encyclopedia Entry: 74ABT74DB,118

Product Overview

Category

The 74ABT74DB,118 belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This product is commonly used in digital electronics for storing and manipulating binary data. It serves as a fundamental building block in various applications such as counters, registers, and memory units.

Characteristics

• High-speed operation: The 74ABT74DB,118 offers fast switching times, making it suitable for high-frequency applications.
• Low power consumption: This IC is designed to minimize power consumption, making it energy-efficient.
• Wide operating voltage range: It can operate within a wide voltage range, typically between 2V and 5.5V.
• Compatibility: The 74ABT74DB,118 is compatible with both TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.
• Robustness: It has built-in protection against electrostatic discharge (ESD), ensuring reliable performance.

Package and Quantity

The 74ABT74DB,118 is available in a small-outline integrated circuit (SOIC) package. It is commonly sold in reels or tubes containing multiple units, with quantities varying depending on the supplier.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input/Output Logic Levels: TTL and CMOS compatible
• Maximum Clock Frequency: X MHz (specific value depends on the manufacturer's datasheet)
• Flip-Flop Type: D-Type (Positive-Edge Triggered)

Pin Configuration

The 74ABT74DB,118 IC consists of 14 pins, each serving a specific function. The pin configuration is as follows:

+---+--+---+ CLR |1 +--+ 14| VCC D |2 13| Q CLK |3 12| Q̅ GND |4 11| PRESET PR |5 10| ENABLE Q̅ |6 9| D̅ Q |7 8| CLK̅ +----------+

Functional Features

The 74ABT74DB,118 flip-flop offers the following functional features:

• Data Storage: It can store a single bit of binary data (0 or 1) at its input (D) and retain it until a clock signal triggers an update.
• Positive-Edge Triggered: The flip-flop updates its output (Q) with the value present at the input (D) only when a rising edge is detected on the clock input (CLK).
• Clear and Preset Inputs: The CLR (Clear) and PR (Preset) inputs allow for resetting or setting the flip-flop to specific states, respectively.
• Enable Input: The ENABLE input controls whether the flip-flop responds to clock signals or remains in a hold state.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient processing of digital signals.
• Low power consumption contributes to energy efficiency.
• Wide operating voltage range allows for compatibility with various systems.
• Robustness against electrostatic discharge ensures reliable performance.

Disadvantages

• Limited storage capacity: Each flip-flop can store only a single bit of data.
• Requires external components for complete functionality in complex circuits.

Working Principles

The 74ABT74DB,118 operates based on the principles of sequential logic. When a clock signal rises from low to high, the flip-flop captures and stores the value present at its input (D) into its internal memory. This stored value is then available at the output (Q) until the next clock signal triggers an update.

The CLR and PR inputs allow for resetting or setting the flip-flop to specific states, respectively. The ENABLE input controls whether the flip-flop responds to clock signals or remains in a hold state.

Application Field Plans

The 74ABT74DB,118 finds extensive use in various digital systems and applications, including:

1. Counters: It can be employed as a building block in counter circuits used for frequency division, event counting, or timekeeping.
2. Registers: The flip-flop's ability to store data makes it suitable for use in registers, which are essential components in microprocessors and digital signal processors.
3. Memory Units: It can be utilized in memory units to store temporary or intermediate data during processing.
4. Data Synchronization: The flip-flop helps synchronize data between different parts of a digital system, ensuring proper timing and avoiding data corruption.

Alternative Models

Several