SHENZHEN I/O

SHENZHEN I/O

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2016 年 11 月 29 日 下午 3:10
2016 年 11 月 29 日 下午 4:34
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描述
Sum together three one-bit binary inputs using only logic gates.
19 条留言
shigawire 2022 年 8 月 30 日 上午 7:13 
@ココアお姉ちゃん You can solve in 4 yuan without using the extra NOT gate but it takes very strange wiring
Cocoa 2022 年 8 月 27 日 下午 6:01 
I don't know how to solve in 4 yuan. The AND gate in the last row can only output the NAND value, isn't it? So I have to use an extra NOT gate to get the AND value.
shigawire 2021 年 9 月 23 日 上午 6:58 
Solved for 4 yuan, and then for 15/739/24 with 5 microcontrollers. Fun!
pamdemonia 2016 年 12 月 12 日 下午 11:41 
Wonderful puzzle! So cool to actually trot out a notebook and figure out some truth tables!
Steven Seagull 2016 年 12 月 2 日 下午 8:57 
And pv2b, yeah it's impossible on a single PGA33X6. The minimum number of terms you can simplify the equation to is 7 total, which is just one too many.
Steven Seagull 2016 年 12 月 2 日 下午 8:27 
Wow, I finally did it. 4 yuan solution is disgusting.
Daedamid 2016 年 12 月 1 日 下午 8:03 
After spending 2-3 hours just trying to get this flipping thing to work, I finally got it. It was a very clean solution for 5 yuan. Then 15mins later I got the 4 yuan one which is a hideous mess.
pv2b 2016 年 12 月 1 日 下午 4:22 
Way to think outside the box, ShadowTheAge! :-) I had the idea of seeing if I could sneak a microcontroller in there, but I incorrectly concluded it was impossible due to the pinout.
ShadowTheAge 2016 年 12 月 1 日 下午 3:04 
Logic-only puzzle? NOPE :D https://imgur.com/a/QKgqv