Encyclopedia Entry: 74VHCT573AM

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: High-Speed, Octal Transparent D-Type Latch with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The 74VHCT573AM is a versatile latch IC that can store and output digital data. It is commonly used in various applications requiring high-speed data transfer and control.
• Packaging/Quantity: Available in reels or tubes, containing multiple units per package.

Specifications

The 74VHCT573AM has the following specifications:

• Supply Voltage: 2.0V to 5.5V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 4.5ns (typical)
• Output Current: ±8mA (maximum)

Detailed Pin Configuration

The 74VHCT573AM has a total of 20 pins, which are assigned as follows:

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

Functional Features

The 74VHCT573AM offers the following functional features:

• Transparent Latch: The latch allows data to be stored and outputted when the clock input is enabled.
• 3-State Outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share a common bus without interference.
• High-Speed Operation: With a propagation delay time of 4.5ns, the IC enables rapid data transfer and processing.

Advantages and Disadvantages

Advantages of the 74VHCT573AM include:

• Versatile and widely used in various digital applications
• High-speed operation for efficient data transfer
• 3-state outputs for bus sharing capability

Disadvantages of the 74VHCT573AM include:

• Limited output current capacity
• Requires external clock signal for proper functioning

Working Principles

The 74VHCT573AM operates based on the principles of digital logic. When the clock input (CLK) is enabled, the data inputs (D0-D7) are latched and stored internally. The stored data can then be accessed and outputted through the corresponding data outputs (Q0-Q7). The output enable (OE) pin controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The 74VHCT573AM finds applications in various fields, including:

1. Microprocessor Systems: Used for interfacing between microprocessors and peripheral devices, such as memory units, input/output modules, and display drivers.
2. Data Communication: Employed in data transmission systems, such as Ethernet switches, routers, and network interface cards (NICs).
3. Industrial Control: Utilized in control systems for automation, robotics, and process control, enabling efficient data transfer and synchronization.
4. Test and Measurement Equipment: Integrated into test instruments, logic analyzers, and data acquisition systems to capture and analyze digital signals.

Detailed and Complete Alternative Models

Some alternative models to the 74VHCT573AM include:

• SN74LV573A
• CD74HCT573
• MC74VHC573

These alternatives offer similar functionality and can be used as substitutes depending on specific requirements and availability.

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