5-Pack SN7447AN BCD-to-7-Segment Decoder/Driver IC – 16-DIP, 4.75-5.25V, 0-70°C, TTL Compatible

About This Product

If you're into electronics, especially digital displays or retro computing projects, you'll recognize this chip.
This is the SN7447AN – a classic BCD-to-7-segment decoder/driver.
It takes a 4-bit binary-coded decimal input and converts it into the signals needed to drive a 7-segment LED or LCD display.
It's a 16-pin DIP package, which is the old-school through-hole style that's still great for breadboarding and hobbyist projects.
This version has a single circuit that's a 4:1 decoder – meaning it takes one 4-bit BCD input and outputs to a 7-segment display.

This decoder is a workhorse in the world of digital electronics.
The SN7447AN includes active-low outputs that can sink enough current to directly drive common-anode 7-segment displays without external transistors – that's a big convenience.
It also features blanking, lamp test, and ripple blanking inputs, which give you control over display brightness and leading-zero suppression.
The 16-pin DIP package is breadboard-friendly and easy to solder.
It's 5V tolerant and works with standard TTL levels.
While there are more modern chips with more features, the 7447 remains a favorite because of its simplicity and availability.

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