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MC74HC373ADTR2
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MC74HC373ADTR2

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data storage and transfer
  • Characteristics: High-speed, octal transparent latch with 3-state outputs
  • Package: TSSOP-20
  • Essence: The MC74HC373ADTR2 is a latch IC that can store and transfer data in digital systems. It has eight inputs and outputs, making it suitable for applications requiring the storage and transfer of multiple bits of information simultaneously.
  • Packaging/Quantity: The MC74HC373ADTR2 is typically sold in reels containing 2500 units.

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 15ns (max) at 5V supply voltage
  • Output Current: ±25mA
  • Latch-Up Performance: 300mA

Pin Configuration

The MC74HC373ADTR2 has a TSSOP-20 package with the following pin configuration:

+---+--+---+ OE1 |1 +--+ 20| VCC D0 |2 19| D7 D1 |3 18| D6 D2 |4 17| D5 D3 |5 16| D4 D4 |6 15| GND D5 |7 14| LE D6 |8 13| Q7 D7 |9 12| Q6 GND |10 11| Q5 +----------+

Functional Features

  • Octal transparent latch with 3-state outputs
  • High-speed operation
  • Non-inverting outputs
  • Common clock and enable inputs
  • Latch enable input for storing data
  • 3-state outputs for bus-oriented applications

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Non-inverting outputs simplify system design - 3-state outputs enable easy integration into bus-oriented applications

Disadvantages: - Limited voltage range (2V to 6V) - Propagation delay may affect timing-sensitive applications

Working Principles

The MC74HC373ADTR2 operates as an octal transparent latch. When the latch enable (LE) input is high, the data on the D0-D7 inputs is transferred to the corresponding Q0-Q7 outputs. The latch holds the data until a new set of inputs is provided.

The output enable (OE1) input controls the 3-state outputs. When OE1 is low, the outputs are active and reflect the stored data. When OE1 is high, the outputs are in a high-impedance state, allowing other devices to drive the bus.

Detailed Application Field Plans

The MC74HC373ADTR2 is commonly used in various digital systems where data storage and transfer are required. Some application fields include:

  1. Microcontrollers and microprocessors
  2. Memory modules
  3. Communication systems
  4. Data acquisition systems
  5. Industrial automation

Alternative Models

Here are some alternative models that can be considered as replacements for the MC74HC373ADTR2:

  1. SN74HC373N by Texas Instruments
  2. CD74HC373E by Harris Corporation
  3. 74HCT373 by NXP Semiconductors
  4. MC74ACT373DW by ON Semiconductor

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

In conclusion, the MC74HC373ADTR2 is a high-speed octal transparent latch IC that provides efficient data storage and transfer capabilities. Its non-inverting outputs and 3-state functionality make it suitable for various digital systems. However, designers should consider its limited voltage range and propagation delay when selecting this IC for timing-sensitive applications.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av MC74HC373ADTR2 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of MC74HC373ADTR2:

  1. Q: What is MC74HC373ADTR2? A: MC74HC373ADTR2 is a high-speed octal D-type latch with 3-state outputs, commonly used in digital systems.

  2. Q: What is the maximum operating voltage for MC74HC373ADTR2? A: The maximum operating voltage for MC74HC373ADTR2 is 6 volts.

  3. Q: How many latch inputs does MC74HC373ADTR2 have? A: MC74HC373ADTR2 has 8 latch inputs, allowing it to store 8 bits of data.

  4. Q: Can MC74HC373ADTR2 be used as a buffer? A: Yes, MC74HC373ADTR2 can be used as a buffer by connecting the input and output pins together.

  5. Q: What is the purpose of the 3-state outputs in MC74HC373ADTR2? A: The 3-state outputs allow multiple devices to share a common bus without interfering with each other.

  6. Q: What is the maximum output current of MC74HC373ADTR2? A: The maximum output current of MC74HC373ADTR2 is 6 mA.

  7. Q: Can MC74HC373ADTR2 be used in both TTL and CMOS logic systems? A: Yes, MC74HC373ADTR2 is compatible with both TTL and CMOS logic systems.

  8. Q: Does MC74HC373ADTR2 have built-in protection against electrostatic discharge (ESD)? A: Yes, MC74HC373ADTR2 has built-in ESD protection to prevent damage from static electricity.

  9. Q: What is the typical propagation delay of MC74HC373ADTR2? A: The typical propagation delay of MC74HC373ADTR2 is around 10 ns.

  10. Q: Can MC74HC373ADTR2 be used in high-speed applications? A: Yes, MC74HC373ADTR2 is designed for high-speed operation and can be used in various high-speed applications.

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