Texas Instruments
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CD74ACT253E
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CD74ACT253E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Multiplexer/Demultiplexer
  • Characteristics: High-speed, low-power consumption
  • Package: Dual in-line package (DIP)
  • Essence: CD74ACT253E is a multiplexer/demultiplexer IC that allows for the selection of one out of four data inputs and routes it to a single output line.
  • Packaging/Quantity: Available in tubes or reels, with 25 units per tube/reel.

Specifications

  • Supply Voltage: 2V - 6V
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay: 5ns (typical)
  • Input Capacitance: 3pF (typical)
  • Output Current: ±24mA
  • Logic Family: ACT

Detailed Pin Configuration

The CD74ACT253E has a total of 16 pins. The pin configuration is as follows:

  1. A0: Data Input 0
  2. A1: Data Input 1
  3. A2: Data Input 2
  4. A3: Data Input 3
  5. S: Select Input
  6. GND: Ground
  7. Y: Output
  8. VCC: Supply Voltage
  9. B0: Data Output 0
  10. B1: Data Output 1
  11. B2: Data Output 2
  12. B3: Data Output 3
  13. C: Carry Output
  14. D: Enable Input
  15. NC: Not Connected
  16. NC: Not Connected

Functional Features

  • CD74ACT253E is a dual 4-input multiplexer with common select inputs (S) and enable input (D).
  • It can be used as a multiplexer or demultiplexer depending on the configuration.
  • The select input (S) determines which data input is routed to the output.
  • The enable input (D) controls the operation of the IC, allowing for easy cascading of multiple devices.

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient data routing.
  • Low-power consumption makes it suitable for battery-powered applications.
  • Wide supply voltage range provides flexibility in various systems.
  • Compact DIP package enables easy integration into circuit boards.

Disadvantages

  • Limited number of inputs and outputs may not be suitable for complex applications requiring more channels.
  • Propagation delay may introduce timing issues in high-frequency applications.

Working Principles

CD74ACT253E operates based on the principles of digital logic. The select input (S) determines the data input that is connected to the output. When the enable input (D) is high, the IC is active, and the selected data input is routed to the output. When the enable input is low, the IC is disabled, and the output remains in a high-impedance state.

Detailed Application Field Plans

CD74ACT253E finds applications in various fields, including:

  1. Data communication systems
  2. Multiplexing/demultiplexing circuits
  3. Digital signal processing
  4. Industrial automation
  5. Instrumentation and measurement equipment

Detailed and Complete Alternative Models

Some alternative models to CD74ACT253E include:

  1. SN74ACT253: Similar functionality, but with different pin configuration.
  2. CD74HC153: 4-input multiplexer/demultiplexer with complementary outputs.
  3. CD74AC157: Quad 2-input multiplexer with non-inverting outputs.

These alternative models offer similar features and can be considered based on specific application requirements.

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10 domande e risposte comuni relative all'applicazione di CD74ACT253E nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of CD74ACT253E in technical solutions:

  1. Q: What is CD74ACT253E? A: CD74ACT253E is a dual 4-input multiplexer with tri-state outputs, commonly used in digital logic circuits.

  2. Q: What is the purpose of CD74ACT253E? A: CD74ACT253E is used to select one of the four input signals and route it to the output based on the control inputs.

  3. Q: What is the operating voltage range for CD74ACT253E? A: The operating voltage range for CD74ACT253E is typically between 4.5V and 5.5V.

  4. Q: Can CD74ACT253E handle high-speed data signals? A: Yes, CD74ACT253E is designed to handle high-speed data signals with minimal propagation delay.

  5. Q: How many control inputs does CD74ACT253E have? A: CD74ACT253E has two control inputs, which determine the selection of the input signals.

  6. Q: What is the maximum frequency at which CD74ACT253E can operate? A: CD74ACT253E can operate at frequencies up to several hundred megahertz (MHz).

  7. Q: Can CD74ACT253E be cascaded to increase the number of inputs? A: Yes, multiple CD74ACT253E chips can be cascaded together to increase the number of inputs and achieve more complex multiplexing.

  8. Q: Does CD74ACT253E have built-in protection against electrostatic discharge (ESD)? A: Yes, CD74ACT253E typically includes ESD protection diodes to safeguard against ESD events.

  9. Q: What is the power consumption of CD74ACT253E? A: The power consumption of CD74ACT253E is relatively low, typically in the range of a few milliwatts.

  10. Q: Can CD74ACT253E be used in both digital and analog applications? A: CD74ACT253E is primarily designed for digital applications, but it can also be used in certain analog applications where its characteristics are suitable.

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