CD4026 Counter IC

Decimal Counter: The CD4026 is a 5-stage Johnson counter with decoded outputs. It can count in decimal (0 to 9) using the BCD (Binary-Coded Decimal) format.

7-Segment Display Driver: In addition to counting, the CD4026 can drive a common-cathode 7-segment LED display directly. It has outputs (a, b, c, d, e, f, and g) to control the segments of the display, making it suitable for displaying numbers and some letters (A to F).

Clock Input: The IC has a clock input (usually labeled as CLK or CLOCK) used to advance the count. It counts on the rising edge (positive edge) of the clock signal.

Reset Input: The CD4026 includes a reset input (often labeled as RESET or RST) that can be used to reset the count to zero. When the reset input is triggered, the counter is cleared, and the display is updated accordingly.

Carry-Out Output: It has a carry-out (CARRY-OUT) pin that can be used to cascade multiple CD4026 ICs to create a larger counting range. When the count reaches 9 and increments further, it generates a carry-out signal.

BCD Outputs: The CD4026 provides BCD outputs (Q1, Q2, Q3, Q4) that represent the current count in binary-coded decimal format.

Power Supply Voltage: The CD4026 typically operates with a power supply voltage in the range of 3 volts to 15 volts, making it compatible with various digital systems.

Applications: The CD4026 is commonly used in applications where you need to count and display numbers using 7-segment displays. It is found in digital timers, scoreboards, counters, frequency dividers, and educational electronics projects.