CD74HCT74E

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, CMOS logic, dual D-type flip-flop
• Package: 14-pin DIP (Dual In-line Package)
• Essence: The CD74HCT74E is a versatile integrated circuit that functions as a dual D-type flip-flop. It is widely used in digital electronics for storing and transferring binary data.

Packaging/Quantity

The CD74HCT74E is typically packaged in a 14-pin DIP package. Each package contains one IC.

Specifications

• Logic Family: HCT
• Number of Flip-Flops: 2
• Input Voltage Range: 2V to 6V
• Output Voltage Range: 0V to Vcc
• Propagation Delay Time: 13 ns (max)
• Operating Temperature Range: -55°C to +125°C

Detailed Pin Configuration

The CD74HCT74E has a total of 14 pins. Here is the detailed pin configuration:

1. CLR (Clear) - Active LOW clear input
2. D1 (Data Input 1) - Data input for flip-flop 1
3. CLK1 (Clock Input 1) - Clock input for flip-flop 1
4. PR (Preset) - Active LOW preset input
5. Q1 (Flip-Flop 1 Output) - Output of flip-flop 1
6. Q1' (Complementary Output of Flip-Flop 1) - Complementary output of flip-flop 1
7. GND (Ground) - Ground reference
8. Q0' (Complementary Output of Flip-Flop 0) - Complementary output of flip-flop 0
9. Q0 (Flip-Flop 0 Output) - Output of flip-flop 0
10. CLK0 (Clock Input 0) - Clock input for flip-flop 0
11. D0 (Data Input 0) - Data input for flip-flop 0
12. SET (Set) - Active LOW set input
13. Vcc (Supply Voltage) - Positive supply voltage
14. NC (No Connection) - No connection

Functional Features

• Dual D-type flip-flop with independent clock inputs
• High-speed operation suitable for various digital applications
• CMOS logic ensures low power consumption and compatibility with TTL logic levels
• Clear and preset inputs for synchronous reset and initialization
• Complementary outputs provide both normal and inverted signals

Advantages and Disadvantages

Advantages

• Versatile and widely used in digital electronics
• High-speed operation allows for efficient data storage and transfer
• Low power consumption due to CMOS technology
• Compatible with TTL logic levels, enabling easy integration into existing systems

Disadvantages

• Limited number of flip-flops (2 in this case)
• Requires external components for complete functionality
• Sensitive to electrostatic discharge (ESD), necessitating proper handling and protection during assembly and usage

Working Principles

The CD74HCT74E operates based on the principles of sequential logic. It consists of two independent D-type flip-flops that store and transfer binary data. The flip-flops are triggered by clock signals, allowing synchronized data updates. The clear and preset inputs enable synchronous reset and initialization of the flip-flops.

Detailed Application Field Plans

The CD74HCT74E finds extensive application in various digital systems, including:

1. Microcontrollers and microprocessors
2. Communication systems
3. Data storage devices
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Its ability to store and transfer data efficiently makes it suitable for applications requiring sequential logic and memory elements.

Detailed and Complete Alternative Models

1. SN74HCT74 - Similar dual D-type flip-flop IC from Texas Instruments
2. MC74HCT74A - Dual D-type flip-flop IC with complementary outputs from ON Semiconductor
3. 74HC74 - Dual D-type flip-flop IC with TTL compatibility from NXP Semiconductors

These alternative models offer similar functionality and can be used as substitutes for the CD74HCT74E in various applications.

In conclusion, the CD74HCT74E is a versatile integrated circuit that serves as a dual D-type flip-flop. Its high-speed operation, CMOS logic, and compact package make it an essential component in digital electronics. Despite its limitations, the CD74HCT74E offers numerous advantages and finds extensive use in various application fields.