CD74HC574M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-Speed CMOS Octal D-Type Flip-Flop with 3-State Outputs
• Package: 20-pin SOIC (Small Outline Integrated Circuit)
• Essence: The CD74HC574M is a high-speed CMOS octal D-type flip-flop with 3-state outputs. It is designed for use as a storage element in a wide range of digital applications.
• Packaging/Quantity: Available in reels or tubes, with varying quantities depending on the supplier.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Current: -4mA
• Low-Level Output Current: 4mA
• Maximum Operating Frequency: 80MHz
• Propagation Delay Time: 10ns
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The CD74HC574M has a total of 20 pins, which are assigned specific functions:

1. GND: Ground
2. Q0: Output 0
3. Q1: Output 1
4. Q2: Output 2
5. Q3: Output 3
6. Q4: Output 4
7. Q5: Output 5
8. Q6: Output 6
9. Q7: Output 7
10. OE: Output Enable
11. D0: Data Input 0
12. D1: Data Input 1
13. D2: Data Input 2
14. D3: Data Input 3
15. D4: Data Input 4
16. D5: Data Input 5
17. D6: Data Input 6
18. D7: Data Input 7
19. VCC: Positive Power Supply
20. GND: Ground

Functional Features

• High-Speed Operation: The CD74HC574M operates at a maximum frequency of 80MHz, making it suitable for high-speed digital applications.
• 3-State Outputs: The 3-state outputs allow the device to be connected to a bus system, enabling multiple devices to share the same data lines without interference.
• Edge-Triggered Flip-Flops: The octal D-type flip-flops are edge-triggered, ensuring reliable and synchronized data storage.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing. - 3-state outputs enable easy integration into bus systems. - Edge-triggered flip-flops ensure reliable data storage.

Disadvantages: - Limited supply voltage range (2V to 6V). - Propagation delay time may affect timing-sensitive applications.

Working Principles

The CD74HC574M consists of eight D-type flip-flops with 3-state outputs. Each flip-flop stores a single bit of data, which can be transferred to the outputs upon receiving a clock signal. The output enable (OE) pin controls the state of the outputs, allowing them to be either active or in a high-impedance state. The device operates on a positive power supply (VCC) and requires a ground connection (GND) for proper functioning.

Detailed Application Field Plans

The CD74HC574M is commonly used in various digital applications, including:

1. Microcontrollers: It can be used as a storage element for storing and transferring data between microcontroller units.
2. Communication Systems: The 3-state outputs make it suitable for use in bus systems, allowing multiple devices to share data lines.
3. Data Storage: The flip-flops can be used for temporary storage of data in memory systems.
4. Industrial Automation: It finds applications in control systems and digital circuits used in industrial automation processes.

Detailed and Complete Alternative Models

1. SN74HC574: Similar high-speed CMOS octal D-type flip-flop with 3-state outputs, offered by Texas Instruments.
2. MC74HC574A: Octal D-type flip-flop with 3-state outputs, available from ON Semiconductor.
3. CD4013BM: Dual D-type flip-flop with complementary outputs, suitable for various digital applications.

These alternative models offer similar functionality and can be considered as substitutes for the CD74HC574M based on specific requirements and availability.

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