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74C74

Encyclopedia Entry: 74C74

Product Overview

Category

The 74C74 belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

The 74C74 is primarily used in digital electronics for storing a single bit of data. It is commonly employed in various applications such as counters, registers, and memory units.

Characteristics

  • The 74C74 is a dual D-type positive-edge-triggered flip-flop.
  • It operates on a wide voltage range, typically between 2V and 6V.
  • This IC offers high-speed performance and low power consumption.
  • It is designed to be compatible with TTL (Transistor-Transistor Logic) inputs and outputs.

Package

The 74C74 is available in a standard 14-pin dual in-line package (DIP). This package provides easy integration into electronic circuits and allows for efficient heat dissipation.

Essence

The essence of the 74C74 lies in its ability to store and manipulate binary information within digital systems. It serves as a fundamental building block for sequential logic circuits.

Packaging/Quantity

The 74C74 is commonly sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier, but it is typically available in quantities of 25, 50, or 100 units per package.

Specifications

  • Supply Voltage Range: 2V to 6V
  • High-Level Input Voltage: 2V to Vcc
  • Low-Level Input Voltage: GND to 0.8V
  • High-Level Output Voltage: Vcc - 0.5V
  • Low-Level Output Voltage: 0.4V
  • Maximum Operating Frequency: 30 MHz

Detailed Pin Configuration

The 74C74 features a total of 14 pins, each serving a specific function. The pin configuration is as follows:

  1. Clear (CLR)
  2. Data Input A (D1)
  3. Clock Input A (CLK1)
  4. Set (SET)
  5. Output A (Q1)
  6. Complementary Output A (/Q1)
  7. Ground (GND)
  8. Output B (Q2)
  9. Complementary Output B (/Q2)
  10. Clock Input B (CLK2)
  11. Data Input B (D2)
  12. Preset (PRE)
  13. Vcc (Positive Power Supply)
  14. Clock Enable (CLKEN)

Functional Features

  • Dual D-type flip-flop with individual clock inputs and outputs.
  • Positive-edge-triggered operation ensures reliable data storage and transfer.
  • Asynchronous clear and preset inputs for resetting the flip-flop state.
  • Clock enable input allows for control over clocking functionality.
  • Outputs provide both normal and complementary representations of stored data.

Advantages and Disadvantages

Advantages

  • High-speed performance enables efficient data processing.
  • Low power consumption makes it suitable for battery-powered devices.
  • Wide voltage range compatibility enhances versatility in various applications.
  • Compact package design facilitates easy integration into circuits.

Disadvantages

  • Limited storage capacity restricts its use in larger-scale memory applications.
  • Lack of built-in error correction mechanisms may lead to data corruption in noisy environments.
  • TTL compatibility limits direct interfacing with other logic families, requiring additional level-shifting circuitry.

Working Principles

The 74C74 operates based on the principles of sequential logic. It utilizes positive-edge-triggered flip-flops to store and transfer binary information. The clock signal controls the timing of data input and output operations, ensuring synchronized data handling within digital systems.

Detailed Application Field Plans

The 74C74 finds extensive application in various domains, including but not limited to:

  1. Digital Counters: Used to keep track of events or occurrences in electronic systems.
  2. Shift Registers: Employed for serial-to-parallel or parallel-to-serial data conversion.
  3. Memory Units: Integrated into small-scale memory modules for temporary data storage.
  4. Control Systems: Utilized in sequential logic circuits for controlling system behavior.

Detailed and Complete Alternative Models

While the 74C74 is a widely used flip-flop IC, there are alternative models available that offer similar functionality. Some notable alternatives include:

  1. 74HC74: A high-speed CMOS (Complementary Metal-Oxide-Semiconductor) version with improved performance characteristics.
  2. CD4013: A dual D-type flip-flop IC based on CMOS technology, offering enhanced noise immunity.
  3. SN7474: A TTL-based dual D-type flip-flop with comparable features to the 74C74.

These alternative models can be considered depending on specific application requirements and compatibility with existing circuitry.

In conclusion, the 74C74 is a versatile integrated circuit belonging to the flip-flop family. Its ability to store and

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät 74C74 :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of 74C74 in technical solutions:

  1. Q: What is a 74C74? A: The 74C74 is a dual D-type flip-flop integrated circuit that can store one bit of data.

  2. Q: What is the purpose of using a 74C74 in a technical solution? A: The 74C74 is commonly used for sequential logic applications, such as storing and transferring data in digital systems.

  3. Q: How many flip-flops are there in a 74C74 IC? A: The 74C74 IC contains two independent D-type flip-flops.

  4. Q: What is the maximum clock frequency supported by the 74C74? A: The 74C74 can typically operate at clock frequencies up to 25 MHz.

  5. Q: Can the 74C74 be used for edge-triggered or level-triggered operations? A: The 74C74 is primarily designed for positive-edge triggered operations, but it can also be used for level-triggered operations with appropriate circuitry.

  6. Q: What is the power supply voltage range for the 74C74? A: The 74C74 typically operates with a power supply voltage range of 4.5V to 5.5V.

  7. Q: Does the 74C74 have any built-in asynchronous inputs? A: Yes, the 74C74 has asynchronous set (S) and reset (R) inputs that allow for immediate state changes regardless of the clock input.

  8. Q: Can the 74C74 be cascaded to create larger storage capacities? A: Yes, multiple 74C74 ICs can be cascaded together to create larger storage capacities or implement more complex sequential logic functions.

  9. Q: What is the output logic level of the 74C74? A: The output logic levels of the 74C74 are typically compatible with both TTL and CMOS logic families.

  10. Q: Are there any special considerations for using the 74C74 in high-speed applications? A: Yes, in high-speed applications, it is important to consider signal integrity, propagation delays, and setup/hold times to ensure reliable operation of the 74C74.

Please note that the answers provided here are general and may vary depending on specific datasheets and application requirements.