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SN74HCT373PWT
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SN74HCT373PWT

Product Overview

Category

SN74HCT373PWT belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used as an octal transparent latch with 3-state outputs.

Characteristics

  • Octal latch: The SN74HCT373PWT has eight latches, allowing it to store and output data from eight different inputs.
  • Transparent latch: The latch allows data to pass through when the latch enable (LE) input is high.
  • 3-state outputs: The IC provides three output states - high, low, and high impedance.

Package

The SN74HCT373PWT comes in a TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of SN74HCT373PWT lies in its ability to store and output data from multiple inputs using octal transparent latches.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply voltage range: 4.5V to 5.5V
  • High-level input voltage: 2V to VCC + 0.5V
  • Low-level input voltage: -0.5V to 0.8V
  • High-level output voltage: VCC - 0.5V
  • Low-level output voltage: 0.1V
  • Maximum operating frequency: 25 MHz

Detailed Pin Configuration

The SN74HCT373PWT has a total of 20 pins. The pin configuration is as follows:

  1. D0 (Data Input 0)
  2. D1 (Data Input 1)
  3. D2 (Data Input 2)
  4. D3 (Data Input 3)
  5. D4 (Data Input 4)
  6. D5 (Data Input 5)
  7. D6 (Data Input 6)
  8. D7 (Data Input 7)
  9. GND (Ground)
  10. LE (Latch Enable)
  11. OE (Output 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

The SN74HCT373PWT offers the following functional features:

  • Octal transparent latch: Allows data to pass through when the latch enable (LE) input is high.
  • 3-state outputs: Provides three output states - high, low, and high impedance.
  • Latch enable (LE) input: Controls the transparency of the latch.
  • Output enable (OE) input: Enables or disables the outputs.

Advantages and Disadvantages

Advantages

  • High-speed operation: The IC can operate at frequencies up to 25 MHz.
  • Multiple inputs and outputs: Allows for efficient data storage and retrieval.
  • 3-state outputs: Facilitates bus sharing and reduces contention issues.

Disadvantages

  • Limited voltage range: The supply voltage range is limited to 4.5V to 5.5V.
  • TSSOP package: The small size of the TSSOP package may require careful handling during assembly.

Working Principles

The SN74HCT373PWT operates based on the principles of latch-based storage and 3-state logic. When the latch enable (LE) input is high, the data inputs are transparently passed through to the outputs. The output enable (OE) input controls whether the outputs are active or in a high impedance state. This allows for efficient data storage and retrieval, as well as bus sharing.

Detailed Application Field Plans

The SN74HCT373PWT finds applications in various fields, including:

  1. Microprocessor systems: Used for storing and retrieving data from multiple inputs in microprocessor-based systems.
  2. Data communication: Enables efficient data transfer and storage in communication systems.
  3. Industrial automation: Facilitates control and monitoring of industrial processes by storing and processing data.

Detailed and Complete Alternative Models

Some alternative models to SN74HCT373PWT that offer similar functionality include:

  1. 74HC373: A CMOS version of the octal transparent latch with 3-state outputs.
  2. CD74HCT373: Another variant of the octal transparent latch with 3-state outputs.

These alternative models can be considered based on specific requirements and compatibility with existing systems.

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技術ソリューションにおける SN74HCT373PWT の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of SN74HCT373PWT:

  1. Q: What is the SN74HCT373PWT? A: The SN74HCT373PWT is a high-speed octal transparent latch with 3-state outputs, commonly used in digital systems.

  2. Q: What is the maximum operating voltage for SN74HCT373PWT? A: The maximum operating voltage for SN74HCT373PWT is 5.5V.

  3. Q: How many latch outputs does SN74HCT373PWT have? A: SN74HCT373PWT has 8 latch outputs, making it suitable for applications that require multiple data storage.

  4. Q: What is the purpose of the 3-state outputs in SN74HCT373PWT? A: The 3-state outputs allow the latch outputs to be disconnected from the bus, enabling multiple devices to share the same bus without interfering with each other.

  5. Q: Can SN74HCT373PWT be used in both parallel and serial data transfer applications? A: Yes, SN74HCT373PWT can be used in both parallel and serial data transfer applications, depending on the system requirements.

  6. Q: What is the typical propagation delay of SN74HCT373PWT? A: The typical propagation delay of SN74HCT373PWT is around 11 ns, making it suitable for high-speed applications.

  7. Q: Does SN74HCT373PWT have any built-in protection features? A: Yes, SN74HCT373PWT has built-in diode clamps that provide protection against electrostatic discharge (ESD) events.

  8. Q: Can SN74HCT373PWT be used in both CMOS and TTL logic systems? A: Yes, SN74HCT373PWT is compatible with both CMOS and TTL logic systems, making it versatile for various applications.

  9. Q: What is the maximum output current of SN74HCT373PWT? A: The maximum output current of SN74HCT373PWT is 6 mA, allowing it to drive standard logic levels.

  10. Q: Is SN74HCT373PWT available in different package options? A: Yes, SN74HCT373PWT is available in a wide range of package options, including TSSOP, SOIC, and PDIP, providing flexibility for different PCB designs.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for SN74HCT373PWT.