Cd4026 4026 Johnson Decade Counter Ic

CD4026 Decade Counter IC – CMOS 7-Segment Counter

The CD4026 is a CMOS-based seven-segment counter IC from the 4000 series, designed to operate with very low power consumption. This 16-pin DIP IC is a decade counter that counts in decimal digits (0-9). It is widely used for displaying numbers on seven-segment displays, where the number increments by one with each clock pulse applied to pin 1. The higher the clock pulse rate, the faster the number will change on the seven-segment display.

Features of CD4026 Decade Counter IC:

• Counter for 7-Segment Display: Ideal for driving seven-segment displays in applications requiring numerical outputs.

• Direct Drive Capability: Can drive a common cathode 7-segment display directly.

• TTL Compatible: Easily interfaces with TTL logic systems like timers and microcontrollers.

• Cascadable: Multiple ICs can be cascaded to display numbers in a higher range (e.g., 0-99 or 0-999).

• Maximum Clock Frequency: Operates up to 6 MHz, allowing for fast counting operations.

• Low Power Consumption: Suitable for low-power electronics projects.

Pin Configuration:

1. Clock (CLK): Initiates counting when a high pulse is applied. Typically connected to a 555 timer or microcontroller to generate the clock pulse.

2. Clock Inhibit (INH): Connected to ground to enable the clock input.

3. Enable Input (DEI): Connected to +5V to enable output pins.

4. Enable Output (DEO): This pin stays high and is used when multiple ICs are cascaded.

5. Divide by 10 (CO): This carry-out pin generates a pulse after counting to 9, used when ICs are cascaded. 6-13. Out A, B, C, D, E, F, G: These output pins are connected to the seven-segment display to show the decoded output.

6. Not 2 Out (UCS): Ungated C segment output, rarely used unless division is needed.

7. Reset: When this input is made high (+5V), it resets the count to 0.

8. Vcc: Powers the IC with a +5V supply.

Applications of CD4026 IC:

• Seven-Segment Counter Projects: Ideal for creating digital counters or clocks with seven-segment displays.

• Object or People Counting: Used in applications where you need to count items or people passing a particular point.

• Range of Display Numbers (0-999): Can display up to three digits (e.g., 0-999) when cascaded.

• Microcontroller-Free Projects: Perfect for projects where microcontrollers are not used or desired.

Package Includes:

• 1 x CD4026 7-Segment Counter IC (DIP-16 Package)

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