These are 5.0 mm (0.2 inch) four character 5 x 7 dot matrix displays driven by an on-board CMOS IC. These displays are pin for pin compatible with the HPDL-2416. The IC stores and decodes 7 bit ASCII data and displays it using a 5 x 7 font. Multiplexing circuitry, and drivers are also part of the IC. The IC has fast setup and hold times which makes it easy to interface to a microprocessor.
Enhanced drop-in replacement to HPDL-2416
Smart alphanumeric display Built-in RAM, ASCII decoder, and LED drive circuitry