SN74HCT574N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal D-type flip-flop with 3-state outputs
• Characteristics:
  • High-speed operation
  • Wide operating voltage range
  • 3-state outputs for bus-oriented applications
• Package: DIP-20 (Dual In-line Package with 20 pins)
• Essence: The SN74HCT574N is a versatile integrated circuit that provides eight D-type flip-flops with 3-state outputs, making it suitable for various digital applications.
• Packaging/Quantity: The SN74HCT574N is typically sold in packs of 25 units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 15 ns (max)
• Output Current: ±6 mA
• Input Capacitance: 3 pF (typ)

Detailed Pin Configuration

The SN74HCT574N has a total of 20 pins arranged as follows:

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

• Octal D-type flip-flops with 3-state outputs
• Positive-edge triggered clock input
• Master reset for clearing all flip-flops
• Output enable for placing the outputs in high-impedance state
• High-speed operation for efficient data processing
• Wide operating voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages: - Versatile and widely used in digital applications - Provides multiple flip-flops in a single package - 3-state outputs allow for bus-oriented applications - High-speed operation enables efficient data handling

Disadvantages: - Limited to a specific number of flip-flops (8 in this case) - Requires careful consideration of clock timing in synchronous systems

Working Principles

The SN74HCT574N operates as an octal D-type flip-flop with 3-state outputs. It stores and transfers data based on the clock signal provided at the CP pin. When the clock signal transitions from low to high (positive edge), the data present at the D0-D7 inputs is latched into the corresponding flip-flops. The stored data can then be accessed at the Q0-Q7 outputs.

The master reset (MR) input allows for clearing all flip-flops simultaneously, while the output enable (OE) input puts the outputs in a high-impedance state, effectively disconnecting them from the system bus.

Detailed Application Field Plans

The SN74HCT574N finds application in various digital systems, including but not limited to: - Microcontrollers and microprocessors - Data storage systems - Communication devices - Industrial automation equipment - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74HCT574N include: - 74HC574: Similar octal D-type flip-flop with 3-state outputs, but operates at a lower voltage range (2V to 6V). - CD74HCT574: Octal D-type flip-flop with 3-state outputs from a different manufacturer (Texas Instruments).

These alternatives can be considered based on specific system requirements and availability.

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