This video shows 7447 IC which is a BCD to 7-Segment Decoders/Drivers.
Circuit Maker 2000 tutorial link • Circuit Maker 2000 | A brief tutorial | In...
Link to 7400 and 4000 playlist • 7400 and 4000 logic family
7447 https://www.electroschematics.com/wp-...
CD4511, which does the same job as 7447. It's turorial link can be seen here https://www.instructables.com/id/Bina...