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CD74HCT573E
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CD74HCT573E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Octal Transparent D-Type Latch with 3-State Outputs
  • Characteristics:
    • High-speed CMOS technology
    • Eight latches in a single package
    • 3-state outputs for bus-oriented applications
  • Package: 20-pin plastic dual in-line package (DIP)
  • Essence: The CD74HCT573E is an integrated circuit that provides eight transparent D-type latches with 3-state outputs, designed for high-speed data storage and transfer.
  • Packaging/Quantity: Available in reels or tubes, with a quantity of 25 units per reel/tube.

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: 14 ns (typical)
  • Output Current: ±6 mA
  • Input Capacitance: 3 pF (typical)

Detailed Pin Configuration

The CD74HCT573E has a total of 20 pins, which are assigned 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. LE (Latch enable)
  12. Q0 (Output 0)
  13. Q1 (Output 1)
  14. Q2 (Output 2)
  15. Q3 (Output 3)
  16. Q4 (Output 4)
  17. Q5 (Output 5)
  18. Q6 (Output 6)
  19. Q7 (Output 7)
  20. VCC (Supply voltage)

Functional Features

  • Octal transparent D-type latches with 3-state outputs
  • High-speed operation suitable for bus-oriented applications
  • Latch enable and output enable control signals for flexible data storage and transfer
  • 3-state outputs allow multiple devices to share a common bus without interference

Advantages and Disadvantages

Advantages: - High-speed CMOS technology ensures fast data transfer - Compact package with eight latches in a single IC - 3-state outputs facilitate bus-oriented applications

Disadvantages: - Limited operating temperature range (-40°C to +85°C) - Relatively low output current capacity

Working Principles

The CD74HCT573E operates as an octal transparent latch, allowing data to be stored and transferred between the inputs (D0-D7) and outputs (Q0-Q7). The latch enable (LE) signal controls the storage of data, while the output enable (OE) signal enables or disables the outputs. When LE is high, the inputs are latched and stored. When OE is low, the outputs are enabled and reflect the stored data. Conversely, when OE is high, the outputs are in a high-impedance state.

Detailed Application Field Plans

The CD74HCT573E is commonly used in various digital systems and applications, including:

  1. Microprocessor-based systems
  2. Data storage and transfer systems
  3. Address decoding circuits
  4. Bus-oriented architectures
  5. Industrial automation systems

Detailed and Complete Alternative Models

  1. SN74HCT573N: Similar octal transparent latch with 3-state outputs, offered by Texas Instruments.
  2. MC74HCT573AN: Octal D-type latch with 3-state outputs, manufactured by ON Semiconductor.
  3. CD74HC573E: Octal transparent latch with non-inverting outputs, produced by Texas Instruments.

These alternative models provide similar functionality and can be used as substitutes for the CD74HCT573E in various applications.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan CD74HCT573E dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of CD74HCT573E in technical solutions:

  1. Question: What is CD74HCT573E?
    Answer: CD74HCT573E is a high-speed octal transparent latch with 3-state outputs, commonly used in digital systems.

  2. Question: What is the maximum operating voltage for CD74HCT573E?
    Answer: The maximum operating voltage for CD74HCT573E is 5.5V.

  3. Question: How many latch outputs does CD74HCT573E have?
    Answer: CD74HCT573E has 8 latch outputs, making it suitable for applications requiring multiple data storage.

  4. Question: Can CD74HCT573E be used as a level shifter?
    Answer: Yes, CD74HCT573E can be used as a level shifter to convert signals between different voltage levels.

  5. Question: What is the typical propagation delay of CD74HCT573E?
    Answer: The typical propagation delay of CD74HCT573E is around 13 ns, making it suitable for high-speed applications.

  6. Question: Can CD74HCT573E drive LEDs directly?
    Answer: No, CD74HCT573E is not designed to drive LEDs directly. It requires additional current-limiting resistors or drivers for LED applications.

  7. Question: Is CD74HCT573E compatible with TTL logic levels?
    Answer: Yes, CD74HCT573E is compatible with TTL logic levels, making it easy to interface with other TTL devices.

  8. Question: Can CD74HCT573E be used in bus-oriented systems?
    Answer: Yes, CD74HCT573E is commonly used in bus-oriented systems where multiple devices need to share data on a common bus.

  9. Question: What is the power supply voltage range for CD74HCT573E?
    Answer: The power supply voltage range for CD74HCT573E is typically between 4.5V and 5.5V.

  10. Question: Can CD74HCT573E be used in battery-powered applications?
    Answer: Yes, CD74HCT573E can be used in battery-powered applications as it operates at low power and has a wide operating voltage range.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.