ON Semiconductor
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DM74ALS251SJX
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DM74ALS251SJX

Product Overview

Category

DM74ALS251SJX belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics and computer systems.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with various logic families

Package

DM74ALS251SJX is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of DM74ALS251SJX lies in its ability to perform multiplexing functions in digital circuits.

Packaging/Quantity

This product is typically sold in reels or tubes, containing a specific quantity of ICs per package.

Specifications

  • Logic family: ALS
  • Number of inputs: 8
  • Number of outputs: 1
  • Supply voltage range: 4.5V to 5.5V
  • Operating temperature range: -40°C to +85°C
  • Propagation delay time: 9ns (max)
  • Output current: ±24mA

Detailed Pin Configuration

  1. A0 (Input)
  2. A1 (Input)
  3. A2 (Input)
  4. A3 (Input)
  5. A4 (Input)
  6. A5 (Input)
  7. A6 (Input)
  8. A7 (Input)
  9. Y (Output)
  10. GND (Ground)
  11. E (Enable)
  12. VCC (Supply voltage)

Functional Features

  • Multiplexes eight input data lines onto a single output line based on the control inputs.
  • Enables efficient data routing and selection in digital systems.
  • Provides flexibility in designing complex digital circuits.

Advantages

  • High-speed operation allows for quick data processing.
  • Low power consumption helps conserve energy.
  • Wide operating voltage range ensures compatibility with different power supply systems.
  • Compatibility with various logic families simplifies integration into existing circuits.

Disadvantages

  • Limited number of outputs restricts the complexity of multiplexing operations.
  • Propagation delay time may affect real-time applications requiring immediate data selection.

Working Principles

DM74ALS251SJX operates by using the control inputs (A0-A7) to select one of the eight input data lines and route it to the output line (Y). The enable input (E) controls the overall operation of the multiplexer. When enabled, the selected input is transmitted to the output, while the non-selected inputs are disconnected.

Detailed Application Field Plans

DM74ALS251SJX finds applications in various digital systems, including: 1. Data routing and selection in microprocessors and microcontrollers. 2. Address decoding in memory systems. 3. Input/output (I/O) expansion in embedded systems. 4. Multiplexing control signals in communication systems.

Detailed and Complete Alternative Models

  1. SN74ALS251: Similar functionality from Texas Instruments.
  2. MC74ALS251: Equivalent product offered by Motorola.
  3. CD74ALS251: Alternative option provided by National Semiconductor.

These alternative models offer similar features and can be used as replacements for DM74ALS251SJX in different applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací DM74ALS251SJX v technických řešeních

Sure! Here are 10 common questions and answers related to the application of DM74ALS251SJX in technical solutions:

  1. Q: What is DM74ALS251SJX? A: DM74ALS251SJX is a specific type of integrated circuit (IC) commonly used in digital logic applications.

  2. Q: What is the purpose of DM74ALS251SJX? A: DM74ALS251SJX is a multiplexer IC that allows multiple input signals to be selected and routed to a single output based on control inputs.

  3. Q: What are some typical applications of DM74ALS251SJX? A: DM74ALS251SJX can be used in various applications such as data routing, signal switching, address decoding, and bus interfacing.

  4. Q: How many inputs does DM74ALS251SJX have? A: DM74ALS251SJX has 8 input channels, which means it can select from up to 8 different input signals.

  5. Q: What is the voltage range supported by DM74ALS251SJX? A: DM74ALS251SJX typically operates with a voltage range of 4.5V to 5.5V.

  6. Q: Can DM74ALS251SJX handle both analog and digital signals? A: No, DM74ALS251SJX is designed specifically for digital signals and is not suitable for handling analog signals.

  7. Q: What is the maximum frequency at which DM74ALS251SJX can operate? A: DM74ALS251SJX can typically operate at frequencies up to 100 MHz.

  8. Q: Does DM74ALS251SJX require any external components for operation? A: DM74ALS251SJX requires external power supply connections and control inputs to function properly.

  9. Q: Can DM74ALS251SJX be cascaded to increase the number of input channels? A: Yes, multiple DM74ALS251SJX ICs can be cascaded together to increase the number of input channels and achieve more complex routing configurations.

  10. Q: Is DM74ALS251SJX available in different package options? A: Yes, DM74ALS251SJX is available in various package options such as SOIC, PDIP, and TSSOP, allowing for flexibility in PCB design and integration.

Please note that the specific details and characteristics of DM74ALS251SJX may vary, so it's always recommended to refer to the datasheet or manufacturer's documentation for accurate information.