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CD74HCT257M96G4

CD74HCT257M96G4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Multiplexer/Demultiplexer
  • Characteristics: High-Speed CMOS Logic, 4-Bit Binary Multiplexer/Demultiplexer
  • Package: SOIC-16
  • Essence: CD74HCT257M96G4 is a multiplexer/demultiplexer IC that allows for the selection of one of four data inputs and routes it to a single output line.
  • Packaging/Quantity: The CD74HCT257M96G4 is typically sold in reels or tubes containing 2500 units.

Specifications

  • Logic Family: HCT
  • Number of Inputs: 4
  • Number of Outputs: 1
  • Supply Voltage Range: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to 85°C
  • Propagation Delay Time: 13 ns (typical)
  • Output Current: ±6 mA
  • Input Capacitance: 3.5 pF (typical)

Pin Configuration

The CD74HCT257M96G4 has a total of 16 pins arranged as follows:

+---+--+---+ A0 -|1 +--+ 16|- VCC A1 -|2 |- Y A2 -|3 |- GND A3 -|4 |- B E -|5 |- C D -|6 |- D F -|7 |- A G -|8 |- B H -|9 |- C OE -|10 |- D Y0 -|11 |- A Y1 -|12 |- B Y2 -|13 |- C Y3 -|14 |- D GND -|15 |- E VCC -|16 |- F +---+--+---+

Functional Features

The CD74HCT257M96G4 is designed to perform the following functions:

  • Multiplexing: It allows the selection of one of four data inputs (A0-A3) and routes it to the output line (Y).
  • Demultiplexing: It can also be used as a demultiplexer, where the input (Y) is selected and routed to one of the four outputs (Y0-Y3).

Advantages and Disadvantages

Advantages

  • High-speed operation due to HCT logic family.
  • Wide supply voltage range allows compatibility with various systems.
  • Low power consumption.
  • Compact SOIC-16 package for space-saving designs.

Disadvantages

  • Limited number of inputs and outputs compared to more complex multiplexer/demultiplexer ICs.
  • Propagation delay time may affect timing-sensitive applications.

Working Principles

The CD74HCT257M96G4 operates based on the principles of digital logic. When the enable input (E) is high, the multiplexer function is active, and the selected input (A0-A3) is connected to the output (Y). Conversely, when the enable input is low, the demultiplexer function is active, and the input (Y) is routed to one of the outputs (Y0-Y3) based on the select inputs (A0-A3).

Application Field Plans

The CD74HCT257M96G4 finds applications in various fields, including:

  1. Data communication systems
  2. Digital signal processing
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

Alternative Models

Here are some alternative models that can be used as substitutes for the CD74HCT257M96G4:

  1. SN74HCT257N
  2. MC74HCT257AD
  3. 74HCT257D
  4. CD74HC257M96G4

These alternatives offer similar functionality and can be selected based on availability, pricing, and specific project requirements.

In conclusion, the CD74HCT257M96G4 is a versatile multiplexer/demultiplexer IC with high-speed operation, wide supply voltage range, and compact package. It finds applications in various fields and has several alternative models available in the market.

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng CD74HCT257M96G4 trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of CD74HCT257M96G4 in technical solutions:

  1. Q: What is CD74HCT257M96G4? A: CD74HCT257M96G4 is a quad 2-input multiplexer with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the operating voltage range for CD74HCT257M96G4? A: The operating voltage range for CD74HCT257M96G4 is typically between 4.5V and 5.5V.

  3. Q: What is the maximum output current that CD74HCT257M96G4 can handle? A: CD74HCT257M96G4 can handle a maximum output current of 6mA.

  4. Q: Can CD74HCT257M96G4 be used as a demultiplexer? A: No, CD74HCT257M96G4 is specifically designed as a multiplexer and does not function as a demultiplexer.

  5. Q: What is the propagation delay of CD74HCT257M96G4? A: The propagation delay of CD74HCT257M96G4 is typically around 15ns.

  6. Q: How many select inputs does CD74HCT257M96G4 have? A: CD74HCT257M96G4 has two select inputs, allowing you to choose one of four input channels.

  7. Q: Can CD74HCT257M96G4 be cascaded to increase the number of input channels? A: Yes, multiple CD74HCT257M96G4 chips can be cascaded together to increase the number of input channels.

  8. Q: What is the power dissipation of CD74HCT257M96G4? A: The power dissipation of CD74HCT257M96G4 is typically around 500mW.

  9. Q: Can CD74HCT257M96G4 be used in high-speed applications? A: Yes, CD74HCT257M96G4 is designed for high-speed operation and can be used in such applications.

  10. Q: Is CD74HCT257M96G4 available in different package types? A: Yes, CD74HCT257M96G4 is available in various package types, including SOIC and TSSOP.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications or manufacturer recommendations.