# Questions tagged [digital-circuits]

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### How does the structure of a Luk-Vuillemin multiplier differ from a Wallace or Dadda multiplier?

I've read that Luk-Vuillemin multipliers are similar to Wallace multipliers but partition their inputs in a different way. How exactly does this partitioning work, how does it change the structure of ...
20 views

I'm learning about logic circuits and I've come across full adder. In the book they derived its two carry out expressions - Cout = x&&y || x&&z || y&&z and Cout = x&&...
8 views

### Circuit : Switching function. Can I ignore RESET and CLOCK for the functions?

So if I have to state any function like state transition function or switching function can I ignore CLOCK and RESETS?
23 views

### Is this truth table possbile

I am trying to figure out if this truth table is possible. I've tried inverting the numbers, adding them, subtracting them, but I still cant find anything that works. I am starting to think that this ...
17 views

### How do you compute and compare the delays between a (4:2) compressor and (3,2) counter carry save tree?

My question: How is Table 6.8 shown below computed for different operands? For example, for 3 operands how did they compute: Number of levels using (3,2) = 1 Number of levels using (4;2) = 1 ...
21 views

### Which gates are “pre computation” universal?

In the following, by “functions” I will mean 2 input 1 output Boolean logic functions (for conciseness). A function is called “universal” if by using it (sometimes multiple times, chained together), ...
22 views

### Minimizing a multiple output circuit with K-maps - and without

I'm currently working on learning to minimize a circuit which has multiple outputs using K-maps. My universities script seems rather unhelpful to me which left me in a spot where I have a very rough ...
169 views

### Minimum number of bits to represent negative number

Minimum number of bits required to represent $(+32)_{base10}$ and $(-32)_{base10}$ in signed two's compliment form? My attempt: 32 = 0100000 ( 1st zero - sign bit as positive) So to represent +32 ...