ON Semiconductor
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DM74ALS257SJX
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DM74ALS257SJX

Product Overview

Category

DM74ALS257SJX belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics and computer systems for data multiplexing applications.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL logic levels

Package

DM74ALS257SJX is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of DM74ALS257SJX lies in its ability to efficiently multiplex data signals, enabling effective data transmission and processing.

Packaging/Quantity

DM74ALS257SJX is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: ALS
  • Number of Channels: 1
  • Input/Output Type: Tri-State
  • Package Type: SOIC

Detailed Pin Configuration

  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: Multiplexed output
  7. VCC: Positive supply voltage
  8. GND: Ground

Functional Features

  • Data multiplexing: DM74ALS257SJX allows multiple data inputs to be selectively transmitted through a single output line.
  • Tri-state outputs: The tri-state output feature enables the output to be disconnected from the bus when not in use, preventing interference.

Advantages and Disadvantages

Advantages

  • High-speed operation facilitates efficient data transmission.
  • Low power consumption helps conserve energy.
  • Wide operating voltage range allows for versatile applications.
  • Compatibility with TTL logic levels ensures seamless integration with existing systems.

Disadvantages

  • Limited number of channels restricts the simultaneous multiplexing of multiple data inputs.
  • The SOIC package may not be suitable for all application scenarios.

Working Principles

DM74ALS257SJX operates by selectively enabling one of the four data inputs (A0 to A3) based on the control input (G). The selected data input is then transmitted through the output pin (Y), while the remaining inputs are disconnected from the output line.

Detailed Application Field Plans

DM74ALS257SJX finds extensive use in various digital systems, including: 1. Data communication networks 2. Microprocessor-based systems 3. Industrial automation 4. Instrumentation and measurement equipment 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to DM74ALS257SJX include: 1. SN74ALS257: Manufactured by Texas Instruments 2. MC74ALS257: Manufactured by ON Semiconductor 3. CD74ALS257: Manufactured by Texas Instruments

These alternative models can be considered based on specific requirements and availability.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de DM74ALS257SJX en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of DM74ALS257SJX in technical solutions:

  1. Q: What is DM74ALS257SJX? A: DM74ALS257SJX is a specific type of integrated circuit (IC) commonly used in digital logic applications.

  2. Q: What is the function of DM74ALS257SJX? A: DM74ALS257SJX is a quad 2-to-1 multiplexer IC, which means it can select one of four input signals and route it to a single output based on control inputs.

  3. Q: What voltage levels does DM74ALS257SJX support? A: DM74ALS257SJX supports TTL (Transistor-Transistor Logic) voltage levels, typically operating at 5V.

  4. Q: How many control inputs does DM74ALS257SJX have? A: DM74ALS257SJX has two control inputs, which determine the selection of the input signal to be routed to the output.

  5. Q: What is the maximum frequency at which DM74ALS257SJX can operate? A: The maximum operating frequency of DM74ALS257SJX is typically around 25 MHz.

  6. Q: Can DM74ALS257SJX be used for bidirectional data transmission? A: No, DM74ALS257SJX is a unidirectional multiplexer and cannot be used for bidirectional data transmission.

  7. Q: What is the power supply requirement for DM74ALS257SJX? A: DM74ALS257SJX requires a single +5V power supply for proper operation.

  8. Q: Can DM74ALS257SJX handle analog signals? A: No, DM74ALS257SJX is designed to handle digital signals only and is not suitable for analog applications.

  9. Q: What is the package type of DM74ALS257SJX? A: DM74ALS257SJX is available in a 16-pin SOIC (Small Outline Integrated Circuit) package.

  10. Q: Can DM74ALS257SJX be cascaded to increase the number of inputs? A: Yes, multiple DM74ALS257SJX ICs can be cascaded together to increase the number of inputs and achieve more complex multiplexing functionality.

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