The 7-segment display, also written as “seven segment display”, consists of seven LEDs (hence its name) arranged in a rectangular fashion as shown. Each of the seven LEDs is called a segment because when illuminated the segment forms part of a numerical digit(both Decimal and Hex) to be displayed. An additional 8th LED is sometimes used within the same package thus allowing the indication of a Decimal Point,(DP).

Features of 7 Segment LED Display Common Cathode:

• Operating Voltage: 2V- 3.5V.
• Current: 20mA.
• Read frequency: 125 kHz.
• Bread board Friendly.
• LED Colour: RED.
• Digit/Alpha Size: 0.56"

Application of 7 Segment LED Display Common Cathode:

• Numeric Display.
• Hexadecimal digit Display.
• Low Level Display.
• DIY projects requiring Numeric display.