The DM1623 is a 16‑character × 2‑line liquid‑crystal dot‑matrix display module that includes its own controller, data RAM and character generator ROM. It supports both 8‑bit and 4‑bit parallel interfaces for easy connection to microprocessors.
The datasheet provides mechanical dimensions, electrical ratings, backlight options (EL and LED), timing characteristics, pin functions and full instruction sets for developers integrating the module into their designs.
| Display size | 16 characters x 2 lines |
|---|---|
| Character structure | 5 x 8 dots |
| Display data RAM | 80 characters (80 × 8 bits) |
| Character generator ROM | 192 characters |
| Logic supply voltage | 0.3 V to 7.0 V |
| LCD supply voltage | 0.3 V to 13.5 V |
| Supply current | 1.5 mA to 3.0 mA |
| Contrast ratio | 3 : 1 to 5 : 1 |
The DM1623 displays 16 characters per line on 2 lines.