SN74AC574DBR

Product Overview

• Category: Integrated Circuit
• Use: Flip-Flop / Latch
• Characteristics: High-speed, low-power, octal D-type flip-flop with 3-state outputs
• Package: SSOP (Shrink Small Outline Package)
• Essence: Sequential logic device for storing and transferring data
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24 mA at 3.3 V
• Propagation Delay Time: 4.5 ns (typical)

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)
21. VCC (Supply Voltage)

Functional Features

• High-speed operation: The SN74AC574DBR can operate at high clock frequencies, making it suitable for applications requiring fast data transfer.
• Low-power consumption: It is designed to consume minimal power, making it energy-efficient and suitable for battery-powered devices.
• 3-state outputs: The flip-flop outputs can be put into a high-impedance state, allowing multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data transfer. - Low-power consumption prolongs battery life in portable devices. - 3-state outputs facilitate bus sharing in complex systems.

Disadvantages: - Limited voltage range of 2 V to 6 V may not be suitable for all applications. - Propagation delay time of 4.5 ns may introduce timing constraints in certain high-speed applications.

Working Principles

The SN74AC574DBR is an octal D-type flip-flop with 3-state outputs. It stores and transfers data using positive-edge-triggered flip-flops. The clock pulse (CP) input controls the transfer of data from the input pins (D0-D7) to the corresponding output pins (Q0-Q7). The master reset (MR) input resets all flip-flops to their initial state when activated. The output enable (OE) input puts the outputs into a high-impedance state when active.

Detailed Application Field Plans

The SN74AC574DBR is commonly used in various digital systems, including:

1. Microprocessors and microcontrollers
2. Data storage systems
3. Communication equipment
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Its ability to store and transfer data quickly, along with low-power consumption, makes it suitable for applications that require reliable sequential logic functionality.

Detailed and Complete Alternative Models

1. SN74AC574NSR: Same functionality, different package (SOIC)
2. SN74AC574DW: Same functionality, wider temperature range (-55°C to +125°C), different package (SOIC)
3. SN74AC574PWR: Same functionality, smaller package (TSSOP)

These alternative models provide flexibility in choosing the most suitable package or meeting specific temperature requirements while maintaining the same functional characteristics as the SN74AC574DBR.

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