Manufacturer: National Semiconductor (now Texas Instruments)
Download the DM8866 datasheet PDF.
This datasheet also includes the DM8864 variant, as both parts are published together in a single manufacturer document.
Note: The manufacturer provides a single datasheet file (DM8864-NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.
The DM8864, DM8865 and DM8866 are cathode drivers for 9, 8, and 7 digit LED displays respectively. They are designed to interface between MOS calculator or clock circuits supplying 2.0 mA, and LED displays operating up to 50 mA in a multiplex mode. The DM8864 and DM8866 feature a "low battery" indicator driver which will light a decimal point whenever a 9.0V battery drops below 6.5V typical.
Used with 50 mA LED displays.
"Low battery voltage" indicator.
Directly int.
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