DM8869
DM8869 is TTL compatible hex LED drivers manufactured by National Semiconductor.
- Part of the DM8859 comparator family.
- Part of the DM8859 comparator family.
description
The DM8859, DM8869 are TTL patible hex LED drivers with programmable current source outputs. The current sources are nominally set at 20 m A but may be adjusted by external resistors for any value between 0-50 m A. Each device contains six latches which may be set by input data terminals. A strobe mon to all six latches enables the data input terminals. The DM8859 current source outputs are switched on by entering a high level into the latches and the DM8869 current source outputs are switched on by entering a low level into the latches.
The devices are available in either a molded or cavity package. In order not to damage the devices there is a limit placed on the power dissipation allowable for each package type. This information is shown in the graph on the back page. o
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CD schematic diagram
INPUT DATA 1
DM8859
OUTPUT t
MON STROBE
TO OTHER LATCHES...
