The DLR/DLO/DLG3416 is a four character 5x7 dot matrix display module with a built-in CMOS integrated circuit. This display is a "drop-in" replacement for the DL3416. The integrated circuit contains memory, ASCII ROM decoder, multiplexing circuitry and drivers. Data entry is asynchronous and can be random. A display system can be built using any number of DLX3416s since each character can be addressed independently and will continue to display the character last stored until replaced by another. System interconnection is very straightforward. The least significant two address bits (A0, A1) are normally connected to the like-named inputs of all displays in the system. With four chip enables, four displays (16 characters) can easily be interconnected without a decoder. Data lines are connected to all DLX3416s directly and in parallel, as is the write line (WR). The display will then behave as a write-only memory. The cursor function causes all dots of a character position to illuminate at half brightness. The cursor is not a character, and when removed the previously displayed character will reappear. The DLX3416 has several features superior to competitive devices. True "blanking" allows the designer to dim the display for more flexibility of display presentation. Finally the CLR clear function will clear the cursor RAM and the ASCII character RAM simultaneously. The character set consists of 128 special ASCII characters for English, German, Italian, Swedish, Danish, and Norwegian. All products are subjected to out-going AQL's of 0.25% for brightness matching, visual alignment and dimensions, 0.065% for electrical and functional. |