Texas Instruments
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
CD4026BE
Zobrazit detail DataSheets

CD4026BE

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Decade counter and 7-segment display driver
  • Characteristics:
    • Counts from 0 to 9
    • Drives a 7-segment display
    • Cascadable for larger displays
  • Package: DIP (Dual In-line Package)
  • Essence: CMOS (Complementary Metal-Oxide-Semiconductor) technology
  • Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

  • Supply Voltage: 3V to 18V
  • Maximum Clock Frequency: 5 MHz
  • Maximum Power Dissipation: 500 mW
  • Operating Temperature Range: -55°C to +125°C

Detailed Pin Configuration

The CD4026BE IC has a total of 16 pins. The pin configuration is as follows:

  1. Clock Input (CLK)
  2. Clock Enable Input (CE)
  3. Display Enable Input (DE)
  4. Ripple Blanking Output (RB)
  5. Lamp Test Input (LT)
  6. Carry Out (CO)
  7. BCD Output 0 (Q0)
  8. BCD Output 1 (Q1)
  9. BCD Output 2 (Q2)
  10. BCD Output 3 (Q3)
  11. BCD Output 4 (Q4)
  12. BCD Output 5 (Q5)
  13. BCD Output 6 (Q6)
  14. BCD Output 7 (Q7)
  15. Ground (GND)
  16. VCC (Supply Voltage)

Functional Features

  • CD4026BE is a decade counter that counts from 0 to 9.
  • It can drive a 7-segment display, making it suitable for digital counters and timers.
  • The IC is cascadable, allowing multiple CD4026BE chips to be connected together for larger displays.
  • It has a ripple blanking output for synchronizing multiple displays.
  • The lamp test input allows testing the display segments.
  • The carry-out pin can be used for cascading additional counters.

Advantages and Disadvantages

Advantages: - Simple and easy to use. - Low power consumption due to CMOS technology. - Cascadable for larger displays. - Can drive common cathode or common anode displays.

Disadvantages: - Limited to counting from 0 to 9. - Requires an external clock signal. - Not suitable for applications requiring higher counting ranges.

Working Principles

The CD4026BE operates as a synchronous counter. It counts up on each rising edge of the clock input (CLK) when the clock enable input (CE) is high. The count value is displayed on the BCD outputs (Q0-Q9) and can be used to drive a 7-segment display. The carry-out (CO) pin can be connected to the clock input of another CD4026BE for cascading multiple counters.

Detailed Application Field Plans

The CD4026BE is commonly used in various applications, including:

  1. Digital Counters: It can be used to build simple digital counters for counting events or objects.
  2. Timers: The IC can be utilized in timer circuits to display time in minutes and seconds.
  3. Scoreboards: It is suitable for driving scoreboards in sports events or game shows.
  4. Industrial Automation: CD4026BE can be integrated into industrial control systems for monitoring and displaying process variables.
  5. Educational Projects: It is often used in educational projects to teach digital electronics and counting concepts.

Detailed and Complete Alternative Models

Some alternative models to CD4026BE include:

  1. CD4029BE: Presettable up/down counter with a similar pin configuration.
  2. CD4017BE: Decade counter with 10 outputs and a different pin configuration.
  3. CD4511BE: BCD to 7-segment decoder/driver for driving common cathode displays.

These alternative models offer similar functionalities but may have different specifications and pin configurations.

Word count: 442 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací CD4026BE v technických řešeních

Sure! Here are 10 common questions and answers related to the application of CD4026BE in technical solutions:

  1. Q: What is CD4026BE? A: CD4026BE is a CMOS integrated circuit that functions as a 4-bit binary counter and decoder. It is commonly used in digital display applications.

  2. Q: How does CD4026BE work? A: CD4026BE counts input clock pulses and converts them into a corresponding 7-segment display output. It has an internal decoder that drives the segments of the display.

  3. Q: What is the maximum clock frequency for CD4026BE? A: The maximum recommended clock frequency for CD4026BE is typically around 5 MHz, but it can vary depending on the specific datasheet and manufacturer.

  4. Q: Can CD4026BE drive common cathode or common anode displays? A: CD4026BE can drive both common cathode and common anode displays. The choice depends on the type of display you are using.

  5. Q: How many digits can CD4026BE control? A: CD4026BE can control up to 4 digits. Each digit requires a separate CD4026BE IC.

  6. Q: Can CD4026BE be cascaded to control more than 4 digits? A: Yes, CD4026BE can be cascaded to control more than 4 digits. By connecting the carry-out pin of one CD4026BE to the clock input of the next, you can extend the number of digits.

  7. Q: What is the power supply voltage range for CD4026BE? A: CD4026BE typically operates with a power supply voltage range of 3V to 15V, but it is important to refer to the datasheet for the specific voltage requirements.

  8. Q: Can CD4026BE be used with microcontrollers or Arduino? A: Yes, CD4026BE can be used with microcontrollers or Arduino. You can connect the output pins of CD4026BE to the input pins of a microcontroller to read the count values.

  9. Q: How do I reset the count on CD4026BE? A: The count on CD4026BE can be reset by applying a high signal (logic 1) to the reset pin (RST). This will set the count back to zero.

  10. Q: Are there any limitations to using CD4026BE? A: One limitation of CD4026BE is that it does not have built-in debouncing for the clock input. If you are using a mechanical switch as the clock source, you may need to add external debouncing circuitry.