Texas Instruments
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SN74ALS841DWRE4
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SN74ALS841DWRE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Function
  • Characteristics: High-speed, low-power Schottky TTL technology
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: 8-bit transparent latch with 3-state outputs
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 9ns (typical)
  • Output Current: ±24mA
  • Input Capacitance: 3pF
  • Output Capacitance: 6pF

Detailed Pin Configuration

The SN74ALS841DWRE4 has a total of 20 pins. The pin configuration is as follows:

  1. GND (Ground)
  2. A0 (Input A0)
  3. A1 (Input A1)
  4. A2 (Input A2)
  5. A3 (Input A3)
  6. A4 (Input A4)
  7. A5 (Input A5)
  8. A6 (Input A6)
  9. A7 (Input A7)
  10. OE (Output Enable)
  11. D0 (Data Input D0)
  12. D1 (Data Input D1)
  13. D2 (Data Input D2)
  14. D3 (Data Input D3)
  15. D4 (Data Input D4)
  16. D5 (Data Input D5)
  17. D6 (Data Input D6)
  18. D7 (Data Input D7)
  19. VCC (Supply Voltage)
  20. GND (Ground)

Functional Features

The SN74ALS841DWRE4 is an 8-bit transparent latch with 3-state outputs. It allows data to be latched and stored when the latch enable (LE) input is high. The output enable (OE) input controls the 3-state outputs, enabling or disabling them. This IC operates on high-speed, low-power Schottky TTL technology, making it suitable for various logic functions.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Compact SOIC package - 3-state outputs provide flexibility in system design

Disadvantages: - Limited voltage range (4.5V to 5.5V) - Relatively small input and output capacitance

Working Principles

The SN74ALS841DWRE4 works by using the latch enable (LE) input to control the storage of data. When LE is high, the inputs (A0-A7) are latched and stored in the internal memory. The stored data can then be accessed through the 3-state outputs (D0-D7) when the output enable (OE) input is also high. When OE is low, the outputs are in a high-impedance state, effectively disconnecting them from the rest of the circuit.

Detailed Application Field Plans

The SN74ALS841DWRE4 can be used in various applications that require latching and storing of data. Some potential application fields include:

  1. Data storage systems
  2. Address decoding circuits
  3. Bus interface units
  4. Memory modules
  5. Control systems

Detailed and Complete Alternative Models

  1. SN74ALS842DWRE4: Similar to SN74ALS841DWRE4 but with inverted outputs.
  2. SN74ALS843DWRE4: 8-bit transparent latch with 3-state outputs and additional parity generation.
  3. SN74ALS844DWRE4: 8-bit transparent latch with 3-state outputs and additional parity checking.

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

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Énumérez 10 questions et réponses courantes liées à l'application de SN74ALS841DWRE4 dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of SN74ALS841DWRE4 in technical solutions:

  1. Q: What is SN74ALS841DWRE4? A: SN74ALS841DWRE4 is a specific type of integrated circuit (IC) commonly used in digital logic applications.

  2. Q: What is the function of SN74ALS841DWRE4? A: SN74ALS841DWRE4 is a 10-bit bus interface latch with 3-state outputs, which means it can store data and control the flow of information between different parts of a digital system.

  3. Q: What voltage levels does SN74ALS841DWRE4 support? A: SN74ALS841DWRE4 supports a wide range of voltage levels, typically from 2V to 6V.

  4. Q: How many inputs and outputs does SN74ALS841DWRE4 have? A: SN74ALS841DWRE4 has 10 inputs and 10 outputs.

  5. Q: Can SN74ALS841DWRE4 be used in both parallel and serial communication systems? A: Yes, SN74ALS841DWRE4 can be used in both parallel and serial communication systems, depending on the specific application requirements.

  6. Q: What is the maximum operating frequency of SN74ALS841DWRE4? A: The maximum operating frequency of SN74ALS841DWRE4 is typically around 25 MHz.

  7. Q: Is SN74ALS841DWRE4 compatible with other ICs? A: Yes, SN74ALS841DWRE4 is designed to be compatible with other TTL (Transistor-Transistor Logic) devices, making it easy to integrate into existing digital systems.

  8. Q: Can SN74ALS841DWRE4 be used in high-speed data transfer applications? A: Yes, SN74ALS841DWRE4 can be used in high-speed data transfer applications, but it's important to consider the specific requirements and limitations of the system.

  9. Q: What is the power consumption of SN74ALS841DWRE4? A: The power consumption of SN74ALS841DWRE4 depends on various factors such as voltage levels, operating frequency, and load conditions. It is typically low for most applications.

  10. Q: Where can I find more information about using SN74ALS841DWRE4 in technical solutions? A: You can refer to the datasheet provided by the manufacturer, which contains detailed information about the electrical characteristics, pin configuration, and application examples of SN74ALS841DWRE4.