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This is my version that can show hexadecimal numbers. My decoders work in "inverted" logic. Instead off turning on the needed segments it turning of the unneeded. There are less segments that had to be turned off, so we need less gates!

This is my version. I think it's really small! If everyone could make smaller I would be pleased to see it! There are just numbers 0-9. The numbers that are displayed after 9 are just the garbage and payment for simplicity.

When building the display decoder, the main question is, where to put the special symbols ? Like "blank", "minus" and others. If ABCDEF letters are at their places, then the "minus" and "blank" are at their own pins, but if not what is easier? In my circuit I ...

Hi. In this circuit simulator http://www.falstad.com/circuit/ there is a sample of 7 segment decoder that has less components that the decoders that I found here, and some, that i build myself. I grabbed it from there and now I'm trying to understand its logic and may be I'll build more simple decod...

Why it is SO complex ? It also very hard to test it it would be great, to have all this logic in a little single chip. Because all this circuit don't fits to the screen.

Hi, admin! This is a great program. I just started to learn a logic circuits (as a hobby), and the first thing i did is searched google for simulators. I tried about 6 simulators(also not free), but this one is the best ! Just few days and I've already wrote some basic things that I'll share soon. I...