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CD74HC125M
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CD74HC125M

Product Overview

  • Category: Integrated Circuit
  • Use: Buffer/Line Driver
  • Characteristics: High-Speed, Quad 3-State Non-Inverting Buffer
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Logic Gates
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay: 9 ns (typical)
  • Output Current: ±6 mA

Detailed Pin Configuration

The CD74HC125M has a total of 14 pins. The pin configuration is as follows:

  1. Pin 1: Output Enable (OE) for Channel 1
  2. Pin 2: Input (A) for Channel 1
  3. Pin 3: Output (Y) for Channel 1
  4. Pin 4: Ground (GND)
  5. Pin 5: Output (Y) for Channel 2
  6. Pin 6: Input (B) for Channel 2
  7. Pin 7: Output Enable (OE) for Channel 2
  8. Pin 8: VCC (Positive Power Supply)
  9. Pin 9: Output Enable (OE) for Channel 3
  10. Pin 10: Input (A) for Channel 3
  11. Pin 11: Output (Y) for Channel 3
  12. Pin 12: Ground (GND)
  13. Pin 13: Output (Y) for Channel 4
  14. Pin 14: Input (B) for Channel 4

Functional Features

  • Quad 3-State Non-Inverting Buffer
  • High-Speed operation
  • Compatible with CMOS and TTL logic levels
  • Output capability: ±6 mA at VCC = 4.5V
  • Balanced propagation delays
  • Wide operating voltage range

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer. - Compatibility with both CMOS and TTL logic levels provides flexibility in system design. - Wide operating voltage range enables usage in various applications.

Disadvantages: - Limited output current capability may restrict use in certain high-power applications. - Propagation delay of 9 ns may not be suitable for ultra-high-speed applications.

Working Principles

The CD74HC125M is a quad 3-state non-inverting buffer integrated circuit. It acts as a line driver, providing buffering and amplification of digital signals. The device operates on a supply voltage ranging from 2V to 6V and is compatible with both CMOS and TTL logic levels.

The input signals are received through the A and B pins for each channel, and the outputs are provided through the corresponding Y pins. The Output Enable (OE) pins control the state of the outputs. When OE is low, the outputs are enabled and reflect the input signals. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the circuit.

The CD74HC125M utilizes logic gates to achieve its functionality. It offers balanced propagation delays across all channels, ensuring synchronized signal transmission.

Detailed Application Field Plans

The CD74HC125M finds application in various fields, including:

  1. Digital Communication Systems: Used for signal buffering and level shifting in communication interfaces.
  2. Industrial Automation: Employed in control systems for signal amplification and isolation.
  3. Automotive Electronics: Utilized in automotive control units for signal conditioning and driving.
  4. Consumer Electronics: Integrated into audio/video equipment, gaming consoles, and other digital devices for signal processing.

Detailed and Complete Alternative Models

  1. SN74HC125: Similar quad 3-state non-inverting buffer IC from Texas Instruments.
  2. MC74HC125: Quad 3-state non-inverting buffer IC from ON Semiconductor.
  3. 74HCT125: Quad 3-state non-inverting buffer IC with TTL compatibility from various manufacturers.

These alternative models offer similar functionality and can be used as replacements for the CD74HC125M in various applications.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan CD74HC125M dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of CD74HC125M in technical solutions:

  1. Q: What is CD74HC125M? A: CD74HC125M is a quad buffer gate with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the voltage supply range for CD74HC125M? A: CD74HC125M operates within a voltage supply range of 2V to 6V.

  3. Q: What is the maximum output current of CD74HC125M? A: The maximum output current of CD74HC125M is typically around 8mA.

  4. Q: Can CD74HC125M be used as a level shifter? A: Yes, CD74HC125M can be used as a level shifter to convert signals between different voltage levels.

  5. Q: How many input/output pins does CD74HC125M have? A: CD74HC125M has four input pins and four output pins.

  6. Q: What is the purpose of the 3-state outputs in CD74HC125M? A: The 3-state outputs allow the device to be disconnected from the bus, enabling multiple devices to share the same bus without interference.

  7. Q: What is the typical propagation delay of CD74HC125M? A: The typical propagation delay of CD74HC125M is around 9ns.

  8. Q: Can CD74HC125M drive capacitive loads? A: Yes, CD74HC125M can drive capacitive loads up to a certain limit, but it is recommended to use external series resistors for better performance.

  9. Q: Is CD74HC125M compatible with TTL logic levels? A: Yes, CD74HC125M is compatible with TTL logic levels, making it suitable for interfacing between different logic families.

  10. Q: What are some common applications of CD74HC125M? A: CD74HC125M is commonly used in bus drivers, memory address decoding, level shifting, and general-purpose digital logic circuits.

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