Litronix DL2416 & Hewlett Packard HPDL2416 LED Displays  
Written by AnubisTTP on 2007-07-22  



Devices included in this entry:

Siemens DL2416T (plastic DIP)
Hewlett-Packard HPDL 2416 (plastic DIP; pictured in thumbnail)
Litronix DL2416T (plastic DIP)

More than a mere display, the DL2416 is an entire seven bit ASCII decoder, character generator, and four digit alphanumeric display in a single package. The display is made up of four seventeen segment dies mounted under a plastic magnifier, with the control circuitry mounted to the underside of the display and covered with an epoxy coating. The display has its own memory registers, and will remember character data without processor intervention.The 2416 differs from its close relative, the 1414, in that it includes cursor position and blinking functionality that preserves the contents of display RAM. This display was produced by several different companies, though the Hewlett Packard version (shown in the thumbnail) is by far the most visually appealing.


Hewlett Packard HPDL 2416, displaying it's built in test characters.

2416 LED displays were produced by a number of different manufacturers. From left to right; Hewlett Packard HPDL-2416 displays in two different styles, Litronix DL2416T, Siemens DL2416. The HP version of this part can be easily identified by the tighter pitch PCB layout and clipped corner epoxy package.

HPDL-2416 die structure, 30x magnification.

Datasheet and pinouts for the DL2416.

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