The 7 Segment 2 Digit 5621AS CC is a dual-digit 7-segment display used to visually show numerical values (ranging from 00 to 99) in a wide variety of electronic applications. It consists of two 7-segment displays, enabling users to display two-digit numbers in digital formats. The 5621AS CC model is designed with common cathode configuration, which is a key feature for compatibility with many control circuits that use common cathode logic.

Features:

• Two Digits: Displays two separate digits, capable of showing values from 00 to 99.

• 7 Segment Configuration: Each digit is composed of 7 individual LED segments arranged in a specific pattern to form numerals 0-9.

• Common Cathode: The 5621AS CC is a common cathode display, meaning that all the negative (cathode) terminals of the LED segments are shared, and each segment is activated by supplying voltage to the anode (positive) pin of that segment.

• Bright LED Segments: The display uses LED technology to ensure high brightness, making it ideal for various environments, including low-light and outdoor use.

• Compact Design: Small size makes it suitable for use in digital devices, including clocks, counters, and measurement tools where space is limited.

• Energy Efficient: The LED technology ensures low power consumption, ideal for battery-operated or energy-efficient projects.

How It Works:

The 7 Segment 2 Digit 5621AS CC works by activating the correct segments in each of the two digits. Since it's a common cathode display, the negative terminal of all the segments is common, and the segments are turned on by applying a positive voltage to the corresponding anode pins.

1. Common Cathode: The common cathode pin is connected to the ground (or negative) side of the circuit, which allows current to flow through the individual segments when a voltage is applied to the anode pins.

2. Displaying Numbers: Each of the 7 segments in a digit is turned on by applying current to the corresponding anode pin. The segments are arranged to display digits from 0 to 9 based on which segments are lit.

   • For example, to display "3", segments a, b, c, d, and g would be illuminated.

   • To display "0", segments a, b, c, d, e, and f would be lit.

3. Multiplexing: To display both digits, the two digits are typically multiplexed. This means the first digit is briefly illuminated, then the second digit is displayed, and the cycle repeats rapidly enough to create the illusion of a steady two-digit number on the display.

Product Limitations:

• Current Limitation: Each segment of the display requires a specific amount of current. It is important to use appropriate current-limiting resistors to prevent excessive current, which could damage the LEDs.

• Visibility: While the display is bright, its visibility might be reduced in bright sunlight or environments with high ambient light unless properly designed with adequate current control and brightness adjustment.

• Multiplexing Artifacts: In multiplexed displays, flickering may be visible to the human eye if the multiplexing speed is too slow. To avoid this, ensure the multiplexing cycle is fast enough (typically around 60 Hz or higher).

Applications:

• Digital Clocks: Ideal for use in digital clocks, timers, and clocks where a two-digit value (such as hours or minutes) needs to be shown clearly.

• Counters: Commonly used in counters for devices such as industrial counters, digital measuring instruments, and event counters.

• Measurement Devices: Used in volt meters, ammeters, thermometers, and other measuring tools where numeric output is required.

• Home Appliances: Found in household appliances such as microwaves, washing machines, refrigerators, and other electronic devices to display numeric values or settings.

• Toys and Gadgets: Used in digital displays for various toys, gadgets, and DIY projects, offering an easy-to-read output of numeric values.

The 7 Segment 2 Digit 5621AS CC is an excellent solution for displaying two-digit numbers in a wide range of electronic and electrical systems. Its common cathode configuration, compact design, and energy-efficient LED segments make it perfect for various consumer electronics, industrial applications, and DIY electronics projects.