XDDGK25A Optoelectronics

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XDDGK25A application field and working principle

XDDGK25A is a LED Character and Numeric Display module designed for embedded applications. It is designed for 21 characters and 8082 available multiplexed characters.

Application Field

The XDDGK25A is suitable for applications such as character display, alarm and warning systems, equipment status display, error messages, temperature and humidity display, counting displays, voltage and current display, and other embedded applications. It can also be used for instrumentation and monitoring, industrial control, and automotive applications.

Working Principle

The XDDGK25A operates in two parts. The first part is the LED Character and Numeric Display module which contains a 7-segment display, plus 5 or 6 anode or cathode pins each, depending on the module chosen. The 7-segment display provides an 8-bit output, while 5 or 6 of the anode or cathode pins contain a 4-bit output, respectively. The 4-bit output consists of the 4 digit data, clock in, reset and ground pins.

The second part of the XDDGK25A is the controller. The controller is responsible for driving the character display. It operates with a variety of display modes, such as 1x7 mode, 1×8 mode and multiplexing display mode. In 1x7 mode, the controller yields a 7-segment display capable of displaying digits 0-9. In 1×8 mode, the controller can drive 8 individual LEDs at once, for a larger display. In multiplexing display mode, the controller can display up to 21 characters at once.

The controller features an Automatic Character Scanning (ACS) circuit that allows characters to be continuously displayed without requiring external intervention. The ACS circuit also helps to reduce power consumption by automatically turning off unused segments. In addition, the controller also has several adjustable parameters, such as brightness and duration, which make it ideal for various embedded applications.

Conclusion

The XDDGK25A is an ideal LED Character and Numeric Display module for embedded applications. It offers 7 segment display, 5 or 6 anode or cathode pins, and a controller with adjustable parameters. With its Automatic Character Scanning circuit and adjustable parameters, it allows for a wide range of applications in instrumentation, industrial control, automotive, and other embedded applications.

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