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DM74ALS258MX
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DM74ALS258MX

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Digital Multiplexer
  • Characteristics: High-speed, TTL-compatible, 3-state outputs
  • Package: 16-pin SOIC (Small Outline Integrated Circuit)
  • Essence: The DM74ALS258MX is a digital multiplexer IC that allows the selection of one out of four data inputs to be routed to a single output line.
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

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

Detailed Pin Configuration

The DM74ALS258MX has a total of 16 pins:

  1. A0: Data Input A
  2. A1: Data Input B
  3. A2: Data Input C
  4. A3: Data Input D
  5. G: Enable Input
  6. Y: Output
  7. NC: No Connection
  8. NC: No Connection
  9. NC: No Connection
  10. VCC: Positive Power Supply
  11. B3: Data Input Select Bit 3
  12. B2: Data Input Select Bit 2
  13. B1: Data Input Select Bit 1
  14. B0: Data Input Select Bit 0
  15. GND: Ground
  16. NC: No Connection

Functional Features

  • 4-to-1 data input multiplexer
  • TTL-compatible inputs and outputs
  • 3-state outputs for bus-oriented applications
  • Low power consumption
  • High-speed operation

Advantages and Disadvantages

Advantages: - High-speed performance allows for efficient data selection - TTL compatibility ensures easy integration with existing systems - 3-state outputs enable bus-oriented applications

Disadvantages: - Limited to 4 data inputs, may not be suitable for larger-scale multiplexing requirements - Requires external control signals for proper operation

Working Principles

The DM74ALS258MX operates by using the input select bits (B0-B3) to determine which of the four data inputs (A0-A3) is routed to the output (Y). The enable input (G) controls the output state, allowing it to be either active or in a high-impedance state.

Detailed Application Field Plans

The DM74ALS258MX can be used in various applications, including but not limited to:

  1. Data routing and selection in digital systems
  2. Address decoding in memory systems
  3. Bus switching in computer architectures
  4. Multiplexing control signals in communication systems

Detailed and Complete Alternative Models

  1. SN74ALS258N: DIP (Dual In-line Package) version of the DM74ALS258MX
  2. CD74ACT158E: CMOS-compatible alternative with similar functionality
  3. MC74HC157AN: High-speed CMOS alternative with 2-to-1 multiplexing capability

These alternative models offer similar functionality to the DM74ALS258MX and can be considered based on specific application requirements.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi DM74ALS258MX dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of DM74ALS258MX in technical solutions:

  1. Q: What is DM74ALS258MX? A: DM74ALS258MX is a specific type of integrated circuit (IC) that functions as a quad 2-input multiplexer.

  2. Q: What is the purpose of DM74ALS258MX? A: The purpose of DM74ALS258MX is to select one of four input signals and route it to a single output based on the control inputs.

  3. Q: What are some typical applications of DM74ALS258MX? A: DM74ALS258MX can be used in various applications such as data routing, signal switching, and multiplexing in digital systems.

  4. Q: How many inputs does DM74ALS258MX have? A: DM74ALS258MX has four inputs labeled A, B, C, and D.

  5. Q: How many control inputs does DM74ALS258MX have? A: DM74ALS258MX has two control inputs labeled G1 and G2.

  6. Q: How does DM74ALS258MX work? A: When the control inputs G1 and G2 are appropriately set, DM74ALS258MX selects one of the four inputs and routes it to the output.

  7. Q: What is the voltage supply range for DM74ALS258MX? A: The voltage supply range for DM74ALS258MX typically ranges from 4.75V to 5.25V.

  8. Q: What is the output voltage level of DM74ALS258MX? A: The output voltage level of DM74ALS258MX is compatible with standard TTL logic levels.

  9. Q: Can DM74ALS258MX handle high-speed signals? A: Yes, DM74ALS258MX is designed to operate at high speeds and can handle fast switching signals.

  10. Q: Are there any specific precautions to consider when using DM74ALS258MX? A: It is important to ensure proper power supply decoupling and avoid exceeding the maximum ratings specified in the datasheet to prevent damage to the IC.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's guidelines for DM74ALS258MX.