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74AC11138N
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Encyclopedia Entry: 74AC11138N

Product Overview

Category

The 74AC11138N belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic circuits for various applications.

Characteristics

  • The 74AC11138N is a quad 2-input NAND buffer with Schmitt-trigger inputs.
  • It operates on a supply voltage range of 2V to 6V.
  • This IC has a high-speed operation and low power consumption.
  • It offers noise immunity due to its Schmitt-trigger inputs.
  • The 74AC11138N is compatible with TTL input/output levels.

Package and Quantity

The 74AC11138N is available in a standard DIP (Dual In-line Package) format. It consists of 16 pins arranged in two rows, with a spacing of 0.1 inches between each pin. The package dimensions are approximately 19mm x 6.5mm x 4.5mm. It is typically sold in packs of 10 or more.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage High (VIH): 2V to VCC
  • Input Voltage Low (VIL): GND to 0.8V
  • Output Voltage High (VOH): VCC - 0.5V
  • Output Voltage Low (VOL): 0.5V
  • Maximum Operating Frequency: 100 MHz
  • Propagation Delay Time: 7 ns (typical)

Pin Configuration

The 74AC11138N has 16 pins, numbered as follows:

+---+--+---+ Y1A |1 +--+ 16| VCC Y1B |2 15| Y4A Y2A |3 14| Y4B Y2B |4 74AC11138N 13| Y4Y Y3A |5 12| Y4X Y3B |6 11| Y4Z GND |7 10| Y4W Y0A |8 9| Y4V +----------+

Functional Features

  • The 74AC11138N consists of four independent 2-input NAND buffers.
  • It features Schmitt-trigger inputs, which provide hysteresis and improve noise immunity.
  • Each buffer has separate enable (G) inputs for individual control.

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient digital signal processing.
  • Low power consumption makes it suitable for battery-powered devices.
  • Schmitt-trigger inputs enhance noise immunity, ensuring reliable operation in noisy environments.
  • Compatibility with TTL input/output levels enables easy integration with existing systems.

Disadvantages

  • Limited voltage range (2V to 6V) may restrict certain applications requiring higher or lower voltages.
  • Propagation delay time of 7 ns (typical) may affect timing-sensitive applications.

Working Principles

The 74AC11138N operates based on the principles of digital logic. When the enable (G) input is high, the corresponding NAND buffer processes the input signals and provides the output accordingly. The Schmitt-trigger inputs ensure that the output transitions occur at well-defined voltage levels, reducing the impact of noise and signal fluctuations.

Application Field Plans

The 74AC11138N finds applications in various digital electronic circuits, including but not limited to: - Data communication systems - Microcontrollers and microprocessors - Signal conditioning circuits - Industrial automation systems - Robotics and control systems

Alternative Models

  • 74AC11138DW: SOIC (Small Outline Integrated Circuit) package with the same functionality.
  • 74AC11138PW: TSSOP (Thin Shrink Small Outline Package) variant of the IC.

These alternative models offer similar features and performance but differ in package type, which may be more suitable for specific circuit board layouts or space constraints.

In conclusion, the 74AC11138N is a versatile integrated circuit that provides quad 2-input NAND buffering with Schmitt-trigger inputs. Its high-speed operation, low power consumption, and noise immunity make it an ideal choice for various digital electronic applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 74AC11138N i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of 74AC11138N in technical solutions:

  1. Q: What is the 74AC11138N? A: The 74AC11138N is a 3-to-8 line decoder/demultiplexer integrated circuit (IC) commonly used in digital electronics.

  2. Q: What is the purpose of the 74AC11138N? A: The purpose of the 74AC11138N is to decode a binary input and activate one of the eight output lines based on the input value.

  3. Q: What voltage levels does the 74AC11138N support? A: The 74AC11138N supports a wide range of voltage levels, typically between 2V and 6V.

  4. Q: How many inputs does the 74AC11138N have? A: The 74AC11138N has three inputs: A, B, and C, which together form a 3-bit binary input.

  5. Q: How many output lines does the 74AC11138N have? A: The 74AC11138N has eight output lines, labeled Y0 to Y7.

  6. Q: Can the 74AC11138N be cascaded to increase the number of outputs? A: Yes, multiple 74AC11138N ICs can be cascaded together to increase the number of outputs.

  7. Q: What is the maximum current that each output of the 74AC11138N can sink or source? A: Each output of the 74AC11138N can sink or source up to 24mA of current.

  8. Q: Can the 74AC11138N be used for both decoding and demultiplexing applications? A: Yes, the 74AC11138N can be used for both decoding a binary input into one of eight outputs and for demultiplexing a single input into eight separate outputs.

  9. Q: What is the propagation delay of the 74AC11138N? A: The propagation delay of the 74AC11138N is typically around 5ns.

  10. Q: Are there any specific precautions to consider when using the 74AC11138N? A: It is important to ensure that the power supply voltage and ground connections are properly connected, and to avoid exceeding the maximum ratings specified in the datasheet, such as voltage and current limits.

Please note that these answers are general and may vary depending on the specific application and implementation of the 74AC11138N.