Encyclopedia Entry: 74ACT574

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage and Transfer
• Characteristics: High-Speed, Octal D-Type Flip-Flop with 3-State Outputs
• Package: Dual In-Line Package (DIP)
• Essence: The 74ACT574 is a versatile IC that provides eight D-type flip-flops with 3-state outputs, allowing for efficient data storage and transfer in various applications.
• Packaging/Quantity: Available in standard DIP packages with varying quantities per package.

Specifications

The 74ACT574 has the following specifications:

• Supply Voltage: 4.5V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 6ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74ACT574 has a total of 20 pins, each serving a specific function. Here is the detailed pin configuration:

1. GND (Ground)
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. OE (Output Enable)
11. CP (Clock Pulse)
12. MR (Master Reset)
13. Q0 (Flip-Flop Output 0)
14. Q1 (Flip-Flop Output 1)
15. Q2 (Flip-Flop Output 2)
16. Q3 (Flip-Flop Output 3)
17. Q4 (Flip-Flop Output 4)
18. Q5 (Flip-Flop Output 5)
19. Q6 (Flip-Flop Output 6)
20. Q7 (Flip-Flop Output 7)

Functional Features

The 74ACT574 offers the following functional features:

• High-Speed Operation: The IC operates at high speeds, making it suitable for time-critical applications.
• 3-State Outputs: The 3-state outputs allow for efficient data transfer and sharing between multiple devices.
• Octal Flip-Flops: With eight D-type flip-flops, the IC provides ample storage capacity for various data processing tasks.
• Output Enable Control: The OE pin enables or disables the outputs, providing flexibility in controlling data flow.

Advantages and Disadvantages

Advantages of the 74ACT574 include:

• High-speed operation
• Versatile data storage and transfer capabilities
• 3-state outputs for efficient data sharing
• Ample storage capacity with eight flip-flops

Disadvantages of the 74ACT574 include:

• Requires external clock pulse for operation
• Limited voltage range (4.5V to 5.5V)

Working Principles

The 74ACT574 operates based on the principles of D-type flip-flops. It stores incoming data on the rising edge of the clock pulse and transfers it to the output when enabled. The 3-state outputs allow multiple devices to share the same bus without conflicts.

Detailed Application Field Plans

The 74ACT574 finds applications in various fields, including:

1. Digital Communication Systems: Used for data buffering and synchronization in communication systems.
2. Microprocessor Interfacing: Enables efficient data transfer between microprocessors and peripheral devices.
3. Memory Addressing: Facilitates address decoding and selection in memory systems.
4. Data Acquisition Systems: Provides storage and transfer capabilities for data acquisition modules.
5. Industrial Control Systems: Used for control signal storage and transfer in industrial automation.

Detailed and Complete Alternative Models

Alternative models to the 74ACT574 include:

1. 74HC574: Similar functionality but operates at a lower voltage range (2V to 6V).
2. 74LS574: Slower operation but compatible with a wider voltage range (4.75V to 5.25V).
3. CD74ACT574: Equivalent functionality from a different manufacturer.

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