BLC2021-AL-FB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The BLC2021-AL-FB application field and working principle focuses on the display of ASCII/Unicode characters. It is one of the most commonly used display technology in the LCD, OLED character and numeric displays module. This module uses an additional character ROM controller for displaying these characters and is capable of displaying ASCII characters (including lower and upper case alphabets, numbers, special characters and graphic symbols) in a variety of different font sizes and typefaces. Knowledge about this technology can be beneficial for developing a complete embedded solution, or for developing a custom display device.

The display of the BLC2021-AL-FB provides various advantages when compared to mono character LCDs and alphanumeric LED displays. The most obvious is the increased pixel resolution that allows clearer and easier to read characters. This display module can enable more complex applications such as application specific graphics, symbols and symbols with text, as well as decorative images, logos and symbols.

The working principle of this module has two main components: one is a character ROM controller, and the other is a frame buffer controller. The character ROM controller is responsible for converting characters (such as ASCII/Unicode) into the binary codes that can be displayed by the frame buffer controller. The frame buffer controller is responsible for generating the necessary signals for displaying the pixel information of each character on the display. It is responsible for managing the display memory, controlling the display refresh, and also provides support for proportional sizing.

The BLC2021-AL-FB uses a crystal oscillator frequency of 13.56MHz and a system clock frequency of 4.032MHz. The module has two display modes, which are \'direct display\' and \'indirect display\'. In the \'direct display\' mode, the data is directly sent from the controller to the display through the signals DIN and DOUT. In the \'indirect display\' mode, the data is stored in the buffer memory (which can be either an external RAM or an EEPROM) before it is transferred to the display.

The BLC2021-AL-FB module is also provided with a control port, which can be used for controlling a variety of display-related settings such as display type, size, loading of new images, font size and type, as well as controlling the backlight mode. This module also has a status register which provides information about the controller\'s operation status including data transfer, character loading, and refresh rate.

This module can be used in a variety of applications including remote displays, LCD modules, LED applications, automotive instrument clusters and point of sale systems. It is also suitable for medical and industrial applications, thanks to its high resolution, wide temperature operating range and support for multiple fonts and typefaces. Using this module with its various features, users can build a comprehensive embedded solution or achieve custom display capabilities.

The specific data is subject to PDF, and the above content is for reference