Nexperia USA Inc.
Das Bild kann eine Darstellung sein.
Siehe Spezifikationen für Produktdetails.
74HCT257D,652
Im Detail sehen Datenblätter

74HCT257D,652

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data Selector/Multiplexer
  • Characteristics: High-speed operation, low power consumption
  • Package: SOIC-16
  • Essence: A quad 2-input multiplexer with 3-state outputs
  • Packaging/Quantity: Tape and Reel, 2500 units 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 +125°C
  • Propagation Delay: 11 ns (typical)
  • Output Current: ±6 mA

Detailed Pin Configuration

The 74HCT257D,652 has a total of 16 pins. The pin configuration is as follows:

  1. GND (Ground)
  2. I0 (Input 0)
  3. I1 (Input 1)
  4. I2 (Input 2)
  5. I3 (Input 3)
  6. E (Enable)
  7. Y0 (Output 0)
  8. Y1 (Output 1)
  9. Y2 (Output 2)
  10. Y3 (Output 3)
  11. GND (Ground)
  12. NC (No Connection)
  13. NC (No Connection)
  14. VCC (Positive Power Supply)
  15. NC (No Connection)
  16. GND (Ground)

Functional Features

  • Quad 2-input multiplexer with 3-state outputs
  • Allows selection of one of four data inputs through the use of control signals
  • Outputs can be put into high-impedance state when not enabled
  • High-speed operation allows for efficient data selection
  • Low power consumption ensures energy efficiency

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data selection - Low power consumption reduces energy usage - 3-state outputs provide flexibility in system design

Disadvantages: - Limited to a maximum of four data inputs - Requires external control signals for data selection

Working Principles

The 74HCT257D,652 is a multiplexer IC that allows the selection of one of four data inputs based on control signals. When the enable signal (E) is active, the selected input is routed to the corresponding output. The outputs can be put into a high-impedance state when the enable signal is inactive. This IC operates at high speeds and consumes low power, making it suitable for various applications.

Detailed Application Field Plans

The 74HCT257D,652 finds applications in various fields, including:

  1. Data communication systems
  2. Digital audio/video equipment
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

In data communication systems, this IC can be used for data routing and selection. In digital audio/video equipment, it can be utilized for signal switching and multiplexing. Industrial automation applications may involve data selection and control signal routing. Automotive electronics can benefit from this IC for various control functions. Lastly, consumer electronics can employ this IC for data selection and signal routing purposes.

Detailed and Complete Alternative Models

Some alternative models to the 74HCT257D,652 include:

  1. SN74HC257N
  2. CD74HCT257E
  3. MC74HCT257AD
  4. 74HCT257PW,118

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

Word count: 346 words

Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von 74HCT257D,652 in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of 74HCT257D,652 in technical solutions:

  1. Q: What is the function of the 74HCT257D,652? A: The 74HCT257D,652 is a quad 2-input multiplexer with 3-state outputs. It allows you to select one of four data inputs and route it to a single output.

  2. Q: What is the voltage supply range for the 74HCT257D,652? A: The 74HCT257D,652 operates with a voltage supply range of 4.5V to 5.5V.

  3. Q: How many data inputs does the 74HCT257D,652 have? A: The 74HCT257D,652 has four data inputs (A, B, C, and D).

  4. Q: Can I use the 74HCT257D,652 as a demultiplexer? A: No, the 74HCT257D,652 is specifically designed as a multiplexer and cannot be used as a demultiplexer.

  5. Q: What is the maximum operating frequency of the 74HCT257D,652? A: The 74HCT257D,652 can operate at a maximum frequency of 70 MHz.

  6. Q: How do I control the selection of the input on the 74HCT257D,652? A: The 74HCT257D,652 has two select inputs (S0 and S1) that determine which data input is selected.

  7. Q: Can I connect multiple 74HCT257D,652 devices together? A: Yes, you can connect multiple 74HCT257D,652 devices together to increase the number of inputs and outputs.

  8. Q: What is the output voltage level of the 74HCT257D,652? A: The output voltage level of the 74HCT257D,652 is compatible with both TTL and CMOS logic levels.

  9. Q: Can I use the 74HCT257D,652 in a high-speed data switching application? A: Yes, the 74HCT257D,652 is suitable for high-speed data switching applications due to its fast propagation delay and low power consumption.

  10. Q: Are there any special considerations when using the 74HCT257D,652? A: It is important to ensure that the input signals are within the specified voltage range and that the device is properly decoupled to minimize noise and ensure reliable operation.

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