7447 – BCD to 7-Segment Decoder/Driver – Fairchild

Part number : 7447, DM7447A

Functions : BCD to 7-Segment Decoders/Drivers

Manufacturer : Fairchild Semiconductor

General Product Information

The DM7446A and DM7447A feature active-LOW outputs designed for driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols to authenticate input conditions.




1. All circuit types feature lamp intensity modulation capability
2. Open-collector outputs drive indicators directly
3. Lamp-test provision
4. Leading/trailing zero suppression


7447 Datasheet PDF

7447 pdf 


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