ON Semiconductor
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MM74HCT373SJ
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MM74HCT373SJ

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Octal Transparent Latch with 3-State Outputs
  • Characteristics: High-Speed CMOS Logic, 8-Bit Register, Tri-State Outputs
  • Package: 20-Lead Small Outline Integrated Circuit (SOIC)
  • Essence: The MM74HCT373SJ is a latch IC that can store and output 8 bits of data. It features tri-state outputs, allowing multiple devices to share the same bus without interference.
  • Packaging/Quantity: The MM74HCT373SJ is typically sold in reels or tubes containing 25 pieces.

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay: 15ns (max)
  • Output Current: ±6mA

Pin Configuration

The MM74HCT373SJ has a total of 20 pins. Here is the detailed pin configuration:

  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. 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 latch with 3-state outputs
  • High-speed operation due to HCT (High-Speed CMOS) technology
  • Latch enable and output enable control for flexible data storage and output
  • Tri-state outputs allow multiple devices to share the same bus without interference
  • Compatible with TTL (Transistor-Transistor Logic) inputs

Advantages and Disadvantages

Advantages: - High-speed operation - Flexible data storage and output control - Tri-state outputs for bus sharing - Compatibility with TTL inputs

Disadvantages: - Limited supply voltage range (2V to 6V) - Propagation delay of up to 15ns

Working Principles

The MM74HCT373SJ operates as an octal transparent latch with 3-state outputs. It stores 8 bits of data when the latch enable (LE) signal is high. The stored data can be outputted when the output enable (OE) signal is also high. The tri-state outputs allow the IC to disconnect from the bus, preventing interference when other devices are using it.

Detailed Application Field Plans

The MM74HCT373SJ is commonly used in various applications, including:

  1. Microprocessor-based systems
  2. Data storage and retrieval systems
  3. Communication systems
  4. Industrial control systems
  5. Automotive electronics
  6. Consumer electronics

Alternative Models

Here are some alternative models that offer similar functionality to the MM74HCT373SJ:

  1. SN74HCT373N by Texas Instruments
  2. CD74HCT373E by Harris Corporation
  3. MC74HCT373AN by ON Semiconductor
  4. 74HCT373D by NXP Semiconductors
  5. DM74HCT373WM by Fairchild Semiconductor

These alternative models can be considered based on specific requirements and availability.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MM74HCT373SJ i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of MM74HCT373SJ:

  1. Q: What is MM74HCT373SJ? A: MM74HCT373SJ is a high-speed octal D-type latch with 3-state outputs, commonly used in digital systems.

  2. Q: What is the purpose of MM74HCT373SJ? A: The purpose of MM74HCT373SJ is to store and control the flow of data in digital circuits.

  3. Q: How many bits can MM74HCT373SJ store? A: MM74HCT373SJ can store 8 bits of data, as it is an octal (8-bit) latch.

  4. Q: What does "3-state outputs" mean in MM74HCT373SJ? A: "3-state outputs" means that the outputs of MM74HCT373SJ can be in three states: high, low, or high-impedance (disconnected).

  5. Q: What voltage levels does MM74HCT373SJ support? A: MM74HCT373SJ supports TTL-compatible input and output voltage levels, typically ranging from 0V to 5V.

  6. Q: Can MM74HCT373SJ be used for bidirectional data transfer? A: No, MM74HCT373SJ is unidirectional and can only store and control the flow of data in one direction.

  7. Q: What is the maximum clock frequency supported by MM74HCT373SJ? A: MM74HCT373SJ can operate at high clock frequencies, typically up to 25 MHz.

  8. Q: Can MM74HCT373SJ be cascaded to increase the number of stored bits? A: Yes, multiple MM74HCT373SJ latches can be cascaded together to increase the number of stored bits.

  9. Q: What are some typical applications of MM74HCT373SJ? A: MM74HCT373SJ is commonly used in microprocessors, memory systems, and other digital circuits where data storage and control are required.

  10. Q: Are there any precautions to consider when using MM74HCT373SJ? A: Yes, it is important to ensure proper power supply decoupling, avoid exceeding maximum voltage levels, and follow recommended operating conditions mentioned in the datasheet for reliable operation.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with technical experts for accurate information.