Texas Instruments
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SN74LS373N
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SN74LS373N

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Octal Transparent Latch
  • Characteristics:
    • High-speed operation
    • Low power consumption
    • Wide operating voltage range
    • TTL compatible inputs
  • Package: DIP (Dual In-line Package)
  • Essence: The SN74LS373N is a latch that can store and transfer data in an electronic circuit.
  • Packaging/Quantity: Available in tubes or reels, with varying quantities.

Specifications

  • Supply Voltage Range: 4.75V to 5.25V
  • Input Voltage Range: 0V to Vcc
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: ±8mA
  • Propagation Delay Time: 15ns (max)
  • Output Type: Tri-State

Detailed Pin Configuration

The SN74LS373N has a total of 20 pins, which are arranged as follows:

__ __ A1 |1 \__/ 20| Vcc B1 |2 19| OE (Output Enable) A2 |3 18| Q7 B2 |4 17| Q6 A3 |5 16| Q5 B3 |6 15| Q4 A4 |7 14| Q3 B4 |8 13| Q2 A5 |9 12| Q1 B5 |10 11| GND ----------

Functional Features

  • Octal transparent latch with 3-state outputs
  • Data can be stored or transferred by controlling the Output Enable (OE) pin
  • Inputs are TTL compatible, allowing easy integration into existing circuits
  • High-speed operation enables efficient data transfer

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data processing - Low power consumption helps in energy-efficient designs - Wide operating voltage range provides flexibility in various applications - TTL compatible inputs simplify integration into existing circuits

Disadvantages: - Limited output current may restrict use in certain high-power applications - Propagation delay time may affect real-time data processing in some scenarios

Working Principles

The SN74LS373N operates as an octal transparent latch. When the Output Enable (OE) pin is enabled, the latch stores or transfers data based on the input signals applied to the A1-B5 pins. The stored data can be accessed through the Q1-Q7 output pins. The tri-state outputs allow multiple latches to be connected together without interference.

Detailed Application Field Plans

The SN74LS373N finds applications in various fields, including:

  1. Microprocessor-based systems: Used for data storage and transfer between the microprocessor and other peripheral devices.
  2. Memory modules: Enables data buffering and control in memory modules, improving overall system performance.
  3. Communication systems: Facilitates data transmission and reception in communication equipment, ensuring reliable data flow.
  4. Industrial automation: Provides data storage and control capabilities in industrial automation systems, enhancing process efficiency.
  5. Automotive electronics: Used in automotive control units for storing and transferring critical data in vehicle systems.

Detailed and Complete Alternative Models

  1. 74HC373: Similar octal transparent latch with CMOS technology, offering lower power consumption.
  2. CD74HCT373: Octal transparent latch with TTL-compatible inputs and higher output current capability.
  3. SN54LS373: Equivalent version of SN74LS373N with military-grade specifications, suitable for rugged environments.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74LS373N v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74LS373N:

  1. Q: What is SN74LS373N? A: SN74LS373N is a type of octal transparent latch with 3-state outputs, commonly used in digital circuits.

  2. Q: What is the purpose of SN74LS373N? A: SN74LS373N is used to store and control the flow of data in digital systems, allowing for efficient data transfer between different components.

  3. Q: How many bits can SN74LS373N store? A: SN74LS373N can store 8 bits of data, as it is an octal (8-bit) latch.

  4. Q: What is the difference between a latch and a flip-flop? A: Latches and flip-flops are both sequential logic devices, but latches are level-sensitive while flip-flops are edge-triggered.

  5. Q: How do I connect SN74LS373N in my circuit? A: SN74LS373N typically requires connections for data inputs, latch enable, output enable, and data outputs. Refer to the datasheet for specific pin configurations.

  6. Q: Can SN74LS373N be used for bidirectional data transfer? A: No, SN74LS373N is unidirectional and can only transfer data in one direction.

  7. Q: What is the maximum voltage that SN74LS373N can handle? A: SN74LS373N can handle a maximum voltage of 5.25V.

  8. Q: How does the 3-state output feature work in SN74LS373N? A: The 3-state output allows the outputs to be disconnected from the bus, effectively putting them in a high-impedance state, which prevents conflicts when multiple devices are connected to the same bus.

  9. Q: Can SN74LS373N be cascaded to increase the number of bits stored? A: Yes, multiple SN74LS373N latches can be cascaded together to increase the number of bits stored.

  10. Q: What are some common applications of SN74LS373N? A: SN74LS373N is commonly used in microprocessors, memory systems, data buses, and other digital systems where efficient data storage and transfer is required.

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