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MC74HC157ADTR2G

MC74HC157ADTR2G

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data Selector/Multiplexer
  • Characteristics:
    • High-speed operation
    • Low power consumption
    • Wide operating voltage range
    • Compatible with TTL and CMOS logic levels
  • Package: TSSOP-16
  • Essence: This IC is a quad 2-input multiplexer designed for high-speed digital applications.
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 13 ns (typical)
  • Maximum Quiescent Current: 4 μA
  • Maximum Output Current: ±25 mA

Pin Configuration

The MC74HC157ADTR2G has a total of 16 pins arranged as follows:

__ __ A1 |1 \__/ 16| VCC B1 |2 15| B2 A2 |3 14| C2 B3 |4 13| D2 C3 |5 HC 12| D3 D3 |6 157 11| C1 GND |7 ADT 10| B0 D0 |8 R2G 9| A0 -- --

Functional Features

  • Quad 2-input multiplexer with common select inputs (A0 and A1)
  • Four independent data inputs (B0, B1, C1, and D0)
  • Output controlled by the select inputs
  • High-speed operation allows for efficient data selection and multiplexing

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data selection - Low power consumption helps conserve energy - Wide operating voltage range provides flexibility in various applications - Compatibility with TTL and CMOS logic levels ensures versatility

Disadvantages: - Limited number of inputs (four) may not be sufficient for complex applications requiring more inputs - Propagation delay time may affect real-time applications that require immediate response

Working Principles

The MC74HC157ADTR2G is a data selector/multiplexer IC that allows the user to choose one of four data inputs based on the select inputs. The select inputs (A0 and A1) control which input is connected to the output. When the select inputs are set to a specific combination, the corresponding data input is selected and passed through to the output.

Detailed Application Field Plans

The MC74HC157ADTR2G can be used in various applications, including but not limited to:

  1. Data routing and selection in digital systems
  2. Address decoding in memory systems
  3. Multiplexing multiple signals onto a single line
  4. Signal switching in communication systems
  5. Logic circuit design requiring data selection capabilities

Detailed and Complete Alternative Models

  1. SN74HC157N: Similar quad 2-input multiplexer IC from Texas Instruments
  2. CD74HC157E: Quad 2-input multiplexer IC from Texas Instruments with extended temperature range
  3. 74HCT157: Quad 2-input multiplexer IC from NXP Semiconductors with TTL compatibility

These alternative models offer similar functionality and can be considered as substitutes for the MC74HC157ADTR2G depending on specific requirements and availability.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan MC74HC157ADTR2G dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of MC74HC157ADTR2G in technical solutions:

  1. Q: What is MC74HC157ADTR2G? A: MC74HC157ADTR2G is a quad 2-input multiplexer/demultiplexer integrated circuit (IC) that can be used for data selection and routing in digital circuits.

  2. Q: What is the operating voltage range of MC74HC157ADTR2G? A: The operating voltage range of MC74HC157ADTR2G is typically between 2V and 6V.

  3. Q: How many inputs does MC74HC157ADTR2G have? A: MC74HC157ADTR2G has four inputs, labeled A, B, C, and D.

  4. Q: Can MC74HC157ADTR2G be used as a demultiplexer? A: Yes, MC74HC157ADTR2G can be used as a demultiplexer by connecting its select inputs appropriately.

  5. Q: What is the maximum output current of MC74HC157ADTR2G? A: The maximum output current of MC74HC157ADTR2G is typically around 5mA.

  6. Q: Is MC74HC157ADTR2G compatible with TTL logic levels? A: Yes, MC74HC157ADTR2G is compatible with both CMOS and TTL logic levels.

  7. Q: Can MC74HC157ADTR2G handle high-speed data signals? A: Yes, MC74HC157ADTR2G is designed to handle high-speed data signals, making it suitable for applications requiring fast switching.

  8. Q: Does MC74HC157ADTR2G have any built-in protection features? A: MC74HC157ADTR2G has built-in diode protection on its inputs, which helps prevent damage from electrostatic discharge (ESD).

  9. Q: Can MC74HC157ADTR2G be used in battery-powered applications? A: Yes, MC74HC157ADTR2G can be used in battery-powered applications due to its low power consumption.

  10. Q: What is the package type of MC74HC157ADTR2G? A: MC74HC157ADTR2G is available in a TSSOP-16 package, which is compact and suitable for space-constrained designs.

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