ON Semiconductor
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MC74VHC257DTG
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MC74VHC257DTG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data Multiplexer
  • Characteristics: High-Speed, Low-Power, 4-Bit Multiplexer
  • Package: TSSOP-16
  • Essence: The MC74VHC257DTG is a versatile data multiplexer that allows the selection of one of four data inputs to be routed to a single output line.
  • Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

  • Supply Voltage: 2.0V to 5.5V
  • Input Voltage: -0.5V to VCC + 0.5V
  • Output Voltage: -0.5V to VCC + 0.5V
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 3.5ns (typical)
  • Input Capacitance: 3pF (typical)
  • Output Capacitance: 6pF (typical)

Detailed Pin Configuration

The MC74VHC257DTG has a total of 16 pins arranged as follows:

__ __ A1 |1 \__/ 16| VCC B1 |2 15| Y C1 |3 14| D D1 |4 13| C G1 |5 12| B G2 |6 11| A D2 |7 10| GND C2 |8 9| B2 ‾‾ ‾‾

Functional Features

  • 4-bit data multiplexer with common select input (S)
  • Allows selection of one of four data inputs (A, B, C, D) to be routed to the output (Y)
  • High-speed operation with low power consumption
  • Compatible with a wide range of supply voltages (2.0V to 5.5V)
  • Schmitt-trigger inputs for noise immunity

Advantages and Disadvantages

Advantages: - Versatile data multiplexer suitable for various applications - High-speed operation allows for efficient data routing - Low-power consumption helps in reducing overall energy usage - Wide supply voltage compatibility enhances flexibility - Schmitt-trigger inputs provide noise immunity

Disadvantages: - Limited to 4-bit data multiplexing, may not be suitable for larger data sets - TSSOP-16 package may require careful handling during assembly

Working Principles

The MC74VHC257DTG works based on the principle of data multiplexing. It has four data inputs (A, B, C, D) and a common select input (S). The select input determines which data input is connected to the output (Y). When S is low, the selected input is routed to the output. When S is high, the output remains in a high-impedance state.

Detailed Application Field Plans

The MC74VHC257DTG can be used in various applications that require data multiplexing, such as:

  1. Data communication systems
  2. Digital audio/video equipment
  3. Industrial control systems
  4. Automotive electronics
  5. Test and measurement instruments

Detailed and Complete Alternative Models

  1. SN74LVC257ADGVR - 4-Bit Multiplexer with 3-State Outputs
  2. CD74HCT257M - High-Speed CMOS Logic 4-Bit Multiplexer
  3. 74HC257PW - Quad 2-Input Multiplexer with 3-State Outputs
  4. MC14551BDR2G - CMOS Analog Multiplexers/Demultiplexers

These alternative models offer similar functionality and can be considered as alternatives to the MC74VHC257DTG.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MC74VHC257DTG i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of MC74VHC257DTG in technical solutions:

  1. Q: What is MC74VHC257DTG? A: MC74VHC257DTG 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 MC74VHC257DTG? A: The operating voltage range for MC74VHC257DTG is typically between 2.0V and 5.5V.

  3. Q: What is the maximum output current that MC74VHC257DTG can handle? A: MC74VHC257DTG can handle a maximum output current of 8mA.

  4. Q: Can MC74VHC257DTG be used as a demultiplexer? A: No, MC74VHC257DTG is specifically designed as a multiplexer and does not function as a demultiplexer.

  5. Q: How many inputs does MC74VHC257DTG have? A: MC74VHC257DTG has four inputs, labeled A, B, C, and D.

  6. Q: What is the purpose of the 3-state outputs in MC74VHC257DTG? A: The 3-state outputs allow the outputs of MC74VHC257DTG to be disabled or put into a high-impedance state when not in use.

  7. Q: What is the propagation delay of MC74VHC257DTG? A: The propagation delay of MC74VHC257DTG is typically around 5 nanoseconds.

  8. Q: Can MC74VHC257DTG be cascaded to increase the number of inputs? A: Yes, multiple MC74VHC257DTG chips can be cascaded together to increase the number of inputs.

  9. Q: What is the package type for MC74VHC257DTG? A: MC74VHC257DTG is available in a TSSOP-16 package.

  10. Q: Can MC74VHC257DTG handle analog signals? A: No, MC74VHC257DTG is designed to work with digital signals and is not suitable for handling analog signals.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for MC74VHC257DTG.