Texas Instruments
Kuva saattaa olla esitys.
Katso tuotteen tekniset tiedot.
SN74HC373DWRE4
Näytä Yksityiskohdat DataSheets

SN74HC373DWRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Octal Transparent D-Type Latches with 3-State Outputs
  • Characteristics:
    • High-Speed CMOS Logic
    • Eight Latches in a Single Package
    • 3-State Outputs for Bus-Oriented Applications
    • Output Drive Capability: 15 LSTTL Loads
    • Low Power Consumption
    • Typical Propagation Delay: 13 ns
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: The SN74HC373DWRE4 is an integrated circuit that contains eight transparent D-type latches with 3-state outputs. It is commonly used in bus-oriented applications where multiple devices need to share data on a common bus.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: ±6mA
  • Maximum Propagation Delay: 25ns
  • Maximum Quiescent Current: 8µA

Pin Configuration

The SN74HC373DWRE4 has a total of 20 pins, which are 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 (Output 0)
  14. Q1 (Output 1)
  15. Q2 (Output 2)
  16. Q3 (Output 3)
  17. Q4 (Output 4)
  18. Q5 (Output 5)
  19. Q6 (Output 6)
  20. Q7 (Output 7)

Functional Features

  • Octal Transparent D-Type Latches: The SN74HC373DWRE4 contains eight latches that can store data when the latch enable input (LE) is high.
  • 3-State Outputs: The outputs of the latches can be put into a high-impedance state using the output enable input (OE), allowing multiple devices to share a common bus without interfering with each other.
  • High-Speed CMOS Logic: The integrated circuit operates at high speeds, making it suitable for applications that require fast data transfer.
  • Low Power Consumption: The SN74HC373DWRE4 is designed to consume minimal power, making it energy-efficient.

Advantages and Disadvantages

Advantages: - High-speed operation - 3-state outputs for bus-oriented applications - Low power consumption

Disadvantages: - Limited output drive capability - Maximum propagation delay may not be suitable for extremely time-critical applications

Working Principles

The SN74HC373DWRE4 works by storing data in its eight transparent D-type latches. When the latch enable input (LE) is high, the data inputs (D0-D7) are transferred to the corresponding latch outputs (Q0-Q7). The output enable input (OE) controls whether the latch outputs are active or in a high-impedance state.

Detailed Application Field Plans

The SN74HC373DWRE4 is commonly used in various applications, including: - Data storage and retrieval systems - Address decoding circuits - Bus interface units - Memory modules - Microprocessor-based systems

Alternative Models

Some alternative models that can be used as replacements for the SN74HC373DWRE4 include: - 74HC373: This is a similar octal transparent latch with 3-state outputs, but it operates at a lower voltage range of 2V to 5.5V. - CD74HC373: Another octal transparent latch with 3-state outputs, but it has a wider operating temperature range of -55°C to +125°C.

These alternative models provide similar functionality and can be used as drop-in replacements in many applications.

Word count: 439 words

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät SN74HC373DWRE4 :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of SN74HC373DWRE4:

  1. Q: What is SN74HC373DWRE4? A: SN74HC373DWRE4 is a high-speed octal transparent latch with 3-state outputs, commonly used in digital systems.

  2. Q: What is the operating voltage range for SN74HC373DWRE4? A: The operating voltage range for SN74HC373DWRE4 is typically between 2V and 6V.

  3. Q: How many latch outputs does SN74HC373DWRE4 have? A: SN74HC373DWRE4 has 8 latch outputs, making it suitable for applications requiring multiple data storage.

  4. Q: Can SN74HC373DWRE4 be used for level shifting? A: Yes, SN74HC373DWRE4 can be used for level shifting as it supports both TTL and CMOS logic levels.

  5. Q: What is the maximum clock frequency for SN74HC373DWRE4? A: The maximum clock frequency for SN74HC373DWRE4 is typically around 80 MHz.

  6. Q: Does SN74HC373DWRE4 have any built-in protection features? A: Yes, SN74HC373DWRE4 has built-in diode clamps on the inputs to protect against electrostatic discharge (ESD).

  7. Q: Can SN74HC373DWRE4 drive LEDs directly? A: No, SN74HC373DWRE4 is not designed to drive LEDs directly. It requires additional current-limiting resistors or drivers.

  8. Q: Is SN74HC373DWRE4 suitable for bidirectional data transfer? A: No, SN74HC373DWRE4 is unidirectional and can only transfer data from the input to the output.

  9. Q: What is the typical propagation delay of SN74HC373DWRE4? A: The typical propagation delay of SN74HC373DWRE4 is around 10 ns, making it suitable for high-speed applications.

  10. Q: Can SN74HC373DWRE4 be used in automotive applications? A: Yes, SN74HC373DWRE4 is qualified for automotive applications and meets the necessary standards.

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