LDM-21657NI

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LEDs have become increasingly popular in display technology due to their low cost, low power consumption, long life, and ability to be easily controlled. LED dot matrix and cluster displays provide a way to easily create simple graphics in a highly compact form factor. An example of such a display is LDM-21657NI, a 16x8 red LED dot matrix and cluster display.

The LDM-21657NI is a dual-row by eight-column matrix of red LEDs, packaged into a single 28-pin package. It uses a constant current sinking drive mode, meaning each row is driven separately by a constant-current source. The output is activated with a high logic level, and deactivated with a low logic level, making it ideal for use with a microcontroller or logic circuit. The use of constant current sinking mode also makes the display easy on the eyes, by preventing flicker and bright spikes in the display.

Because of its dual-row by eight-column arrangement, the LDM-21657NI can be used as a dot matrix display, allowing the user to create simple graphics and text by arranging dots in patterns. It can also be used as a cluster display, meaning each column can be used to display information independently. This makes it suitable for applications such as numeric or thermal displays, or for displaying multiple lines of text in a very compact form.

The LDM-21657NI can be easily connected to a microcontroller or other logic circuit using its 28-pin package. Connecting each of the eight column pins to a logic pin allows for easy “column scanning”, so that different patterns and graphics can be displayed on the dot matrix. Additionally, each of the 16 LEDs can be easily powered directly by a logic pin, allowing independent control of each LED in the matrix.

The LDM-21657NI is an ideal choice for applications requiring either dot matrix or cluster displays, like characters or text displays, numeric displays, and graphical displays. It is particularly well-suited for mobile or low-power applications, due to its low power consumption and ease of connection. With its high level of integration, long life, and cost efficiency, the LDM-21657NI is the perfect choice for any display application.

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