Texas Instruments
Billedet kan være en repræsentation.
Se specifikationer for produktdetaljer.
CD74HCT4040E
Se detaljer DataSheets

CD74HCT4040E

Product Overview

  • Category: Integrated Circuit
  • Use: Counter/Divider
  • Characteristics: High-speed, CMOS logic, 12-stage binary ripple counter/divider
  • Package: PDIP (Plastic Dual In-line Package)
  • Essence: Reliable and versatile counter/divider IC
  • Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

  • Supply Voltage Range: 2V to 6V
  • Maximum Clock Frequency: 40 MHz
  • Number of Stages: 12
  • Output Type: Buffered
  • Operating Temperature Range: -55°C to +125°C
  • Input Current: ±1µA
  • Output Current: ±4mA
  • Propagation Delay: 20ns (typical)

Detailed Pin Configuration

The CD74HCT4040E has a total of 16 pins. The pin configuration is as follows:

  1. Q12
  2. Q11
  3. Q10
  4. Q9
  5. Q8
  6. Q7
  7. Q6
  8. Q5
  9. Q4
  10. Q3
  11. Q2
  12. Q1
  13. MR (Master Reset)
  14. CP (Clock Pulse)
  15. Q0
  16. VCC (Supply Voltage)

Functional Features

  • High-speed operation allows for efficient counting and dividing.
  • CMOS logic ensures low power consumption and compatibility with various systems.
  • 12-stage binary ripple counter/divider provides flexibility in applications.
  • Buffered outputs enhance signal integrity and drive capability.

Advantages

  • Versatile functionality suitable for a wide range of applications.
  • Reliable performance due to high-quality manufacturing standards.
  • Low power consumption makes it ideal for battery-powered devices.
  • Easy integration into existing circuits due to standard pin configuration.

Disadvantages

  • Limited maximum clock frequency compared to some other counter/divider ICs.
  • Not suitable for applications requiring very high-speed counting or dividing.

Working Principles

The CD74HCT4040E operates as a binary ripple counter/divider. It counts input clock pulses and divides them by 2^12 (4096). The output stages provide the divided signals at each stage, allowing for various applications such as frequency division, time measurement, and event sequencing.

Detailed Application Field Plans

  1. Frequency Division: Use CD74HCT4040E to divide an input clock signal to obtain lower frequencies required for specific applications.
  2. Time Measurement: Utilize the counter functionality to measure time intervals accurately.
  3. Event Sequencing: Employ the counter/divider to sequence events in a predetermined order.

Detailed and Complete Alternative Models

  1. CD4020BE: 14-stage binary ripple counter/divider with similar characteristics and package.
  2. CD4518BE: Dual BCD up-counter with similar package and supply voltage range.
  3. CD4060BE: 14-stage ripple carry binary counter/divider with built-in oscillator.

(Note: These alternative models may have different pin configurations and specifications. Please refer to their respective datasheets for detailed information.)

Word count: 345 words

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af CD74HCT4040E i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of CD74HCT4040E in technical solutions:

  1. Q: What is CD74HCT4040E? A: CD74HCT4040E is a high-speed CMOS 12-stage binary counter with an asynchronous reset.

  2. Q: What is the maximum clock frequency supported by CD74HCT4040E? A: CD74HCT4040E can operate at a maximum clock frequency of 25 MHz.

  3. Q: Can CD74HCT4040E be used as a frequency divider? A: Yes, CD74HCT4040E can be used as a frequency divider by connecting the desired clock signal to its input and using the appropriate output stage.

  4. Q: How many output stages does CD74HCT4040E have? A: CD74HCT4040E has 12 output stages, each representing a different division of the input clock frequency.

  5. Q: What is the power supply voltage range for CD74HCT4040E? A: CD74HCT4040E operates with a power supply voltage range of 2V to 6V.

  6. Q: Can CD74HCT4040E be cascaded to achieve higher division ratios? A: Yes, multiple CD74HCT4040E chips can be cascaded together to achieve higher division ratios.

  7. Q: Does CD74HCT4040E have any built-in synchronization features? A: No, CD74HCT4040E does not have any built-in synchronization features. External synchronization may be required depending on the application.

  8. Q: What is the typical propagation delay of CD74HCT4040E? A: The typical propagation delay of CD74HCT4040E is around 15 ns.

  9. Q: Can CD74HCT4040E be used in both digital and analog applications? A: CD74HCT4040E is primarily designed for digital applications, but it can also be used in certain analog applications such as frequency measurement.

  10. Q: What are some common applications of CD74HCT4040E? A: CD74HCT4040E is commonly used in frequency division, time delay generation, event sequencing, and other applications that require precise timing control.

Please note that these answers are general and may vary depending on specific use cases and requirements.