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74ACT11257DBR
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Encyclopedia Entry: 74ACT11257DBR

Product Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Digital Logic Multiplexer
  • Characteristics: High-speed, low-power consumption, wide operating voltage range
  • Package: DBR (Dual-In-Line Package with Rail)
  • Essence: The 74ACT11257DBR is a multiplexer IC that allows multiple input signals to be selected and routed to a single output line.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Logic Family: ACT
  • Number of Inputs: 16
  • Number of Output Lines: 1
  • Operating Voltage Range: 2.0V to 5.5V
  • Propagation Delay: 4.5ns (typical)
  • Operating Temperature Range: -40°C to +85°C
  • Package Type: SSOP (Shrink Small Outline Package)

Detailed Pin Configuration

The 74ACT11257DBR has a total of 24 pins arranged as follows:

+---+--+---+ A0 |1 +--+ 24| VCC A1 |2 | Y A2 |3 | GND A3 |4 | I0 A4 |5 | I1 A5 |6 | I2 A6 |7 | I3 A7 |8 | I4 A8 |9 | I5 A9 |10 | I6 A10 |11 | I7 A11 |12 | I8 A12 |13 | I9 A13 |14 | I10 A14 |15 | I11 A15 |16 | I12 OE |17 | I13 YG |18 | I14 G1 |19 | I15 G2 |20 | NC GND |21 | AY B0 |22 | AX B1 |23 | B3 +----------+

Functional Features

  • The 74ACT11257DBR is a 16:1 multiplexer, allowing selection of one out of sixteen input lines to be routed to the output line.
  • It operates at high speed and consumes low power, making it suitable for applications requiring fast data switching.
  • The wide operating voltage range (2.0V to 5.5V) allows compatibility with various digital systems.
  • The IC features three enable inputs (G1, G2, and OE) for controlling the selection and output operation.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data routing. - Low power consumption helps in reducing overall system energy requirements. - Wide operating voltage range provides flexibility in system integration. - Compact SSOP package allows for space-saving PCB designs.

Disadvantages: - Limited number of output lines may restrict certain complex routing configurations. - Propagation delay of 4.5ns may introduce slight latency in time-critical applications.

Working Principles

The 74ACT11257DBR functions as a multiplexer by utilizing its control inputs (G1, G2, and OE) to select the desired input line. The selected input signal is then routed to the output line (Y). The logic levels on the address inputs (A0-A15) determine the specific input line to be selected.

Detailed Application Field Plans

The 74ACT11257DBR is commonly used in various digital systems and applications, including: - Data communication equipment - Networking devices - Industrial automation systems - Test and measurement instruments - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the 74ACT11257DBR are: - 74HC151: 8:1 Multiplexer IC with similar characteristics but a smaller package size. - CD4051B: 8-channel analog multiplexer/demultiplexer IC suitable for both digital and analog signals. - SN74LS157: Quad 2-line to 1-line data selectors/multiplexers with additional control features.

These alternative models offer different specifications and package options, allowing users to choose the most suitable option based on their specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 74ACT11257DBR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of 74ACT11257DBR in technical solutions:

  1. Q: What is the 74ACT11257DBR? A: The 74ACT11257DBR is a quad 2-input multiplexer/demultiplexer IC (Integrated Circuit) that can be used for data routing and selection.

  2. Q: What is the operating voltage range of the 74ACT11257DBR? A: The operating voltage range of the 74ACT11257DBR is typically between 4.5V and 5.5V.

  3. Q: How many inputs does the 74ACT11257DBR have? A: The 74ACT11257DBR has four inputs, allowing you to select from multiple data sources.

  4. Q: Can the 74ACT11257DBR be used as a demultiplexer? A: Yes, the 74ACT11257DBR can be used as both a multiplexer and a demultiplexer, depending on how it is configured.

  5. Q: What is the maximum frequency at which the 74ACT11257DBR can operate? A: The 74ACT11257DBR can typically operate at frequencies up to 200MHz.

  6. Q: How many output channels does the 74ACT11257DBR have? A: The 74ACT11257DBR has four output channels, corresponding to the four input channels.

  7. Q: Can the 74ACT11257DBR handle both digital and analog signals? A: No, the 74ACT11257DBR is designed to handle digital signals only.

  8. Q: What is the typical propagation delay of the 74ACT11257DBR? A: The typical propagation delay of the 74ACT11257DBR is around 5ns.

  9. Q: Can the 74ACT11257DBR be cascaded to increase the number of inputs or outputs? A: Yes, multiple 74ACT11257DBR ICs can be cascaded together to increase the number of inputs or outputs as needed.

  10. Q: What are some common applications of the 74ACT11257DBR? A: The 74ACT11257DBR is commonly used in digital systems for data routing, signal selection, multiplexing, and demultiplexing tasks. It can be found in various electronic devices such as computers, communication systems, and industrial control systems.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.