General Description
The DM1621 is a liquid crystal dot matrix display module that consists of LCD panel,  LCD control drvier HD44780, driver LCD7930 and is capable of providing (16 characters x 2 lines) display. It contains a controller, a data RAM, and a character generator ROM required for providing display. Data interfacing is in 8-bit parallel or 4-bit parallel and data can be written in or read from a microprocessor.