7447 BCD-to-7-Segment Decoder/Driver (Common Anode)

A 7447 integrated circuit providing a BCD to 7-segment decoder and driver, common anode. Converts a 4-bit BCD input into the seven segment signals for a display, with open collector outputs that sink current - which means it drives common anode displays. Check your display type carefully: this will not work with a common cathode display. This is standard 74-series TTL logic, which runs specifically on 5 volts and is faster than 4000-series CMOS but draws considerably more current and will not tolerate other supply voltages. If your circuit runs at 3.3V or on batteries, ask us about the 74HC equivalent, which uses the same pinout and function but works from 2 to 6 volts at far lower current. Fast switching compared with 4000-series CMOS; Standard 16-pin DIP fits breadboards and sockets; Extensively documented in textbooks and coursework; Direct 5V logic compatibility with Arduino outputs