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By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. So I’ve been looking all over the internet for a Decimal to Binary converter but all I’ve been able to find are Binary to Decimal converters, and Decimal to BCD circuits, does anyone have one?

Please clarify your specific problem or add additional details to highlight exactly what you need.

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Yes, you’ll struggle to find one. The reason for this is that there is no common reason for a BCD to binary converter.

Where do the BCD digits come from that you need to convert? The purpose of the many binary to BCD converter ICs that are around are to support 7-segment displays in the pre-cheap-microcontroller era. As you can imagine, this was a rather common function in electronics devices, hence why the chips are readily available.


Without knowing much more about the problem you are trying to solve, your best bet is to use a cheap microcontroller.

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You could also make something using discrete logic, which would be a good learning exercise, but will quickly datzsheet a datasheeet complicated project in itself. As has been pointed out in other answers, you can use the venerable and I do mean venerable Of course, those things have been obsolete for decades, so finding them is If you go on eBay, you can get 20 year old Russian knockoffs for a couple of bucks apiece.

Dayasheet need 6 for converting 0 to You’ll also need some extra protection logic, since with a 3-digit input there is always the chance that you will inadvertently try to enter a number in excess ofand the results of that will not be 71484. Then, of course, your 6 ICs will draw worst case as much as mA each, so you’re looking at mA. Overall, in terms of circuit board size, power dissipation and error resistance, you’re much better off programming a 4k x 8 PROM such as a This comes in a 28 pin DIP, and they are readily available and easily programmed.


For a complete 3 digits BCD to binary datashdet you need 10 output bits for numbers from 0 to On page 6 or there is a cascaded circuit using 6 chips for 3 BCD digits input and 10 binary output bits.

74184 Datasheet

Of course you may use a PROM with 8 inputs and 8 outputs too. Or you do a single chip solution using a PROM with 12 inputs and 10 outputs. Home Questions Tags Users Unanswered.

Decimal to Binary [closed] Ask Question. Dec 21 ’17 at Without an MCU, it’s going to quickly be a mess of logic chips and wires, if you need more than two digits Besides, your question is really underspecified and smells like an XY problem from miles away. Where are the 3 digits coming from?

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Jon 3, 7 WhatRoughBeast 49k 2 28 The circuit with 6 ICs does convert all 3 digit BCD numbers to a correct result with 10 binary bits. The extra protection logic is necessary only if the result should be represented with 8 bits 0 to only. Uwe 3 5.