Skip to main content

New answers tagged

1 vote
Accepted

demultiplexers and multiple output selection

Generally, no. The demultiplexer is a specific term and refers to a particular kind of circuit. You do get multiple channel demultiplexers, such as 4:2. Or you could simply use multiple demux ICs, one ...
Chintalagiri Shashank's user avatar
1 vote

How to approach the highlighted part of the question?

The following is my solution (I simplified using both the rules of Boolean algebra and the Karnaugh map; resulting combinatorial network):
Franc's user avatar
  • 1,519
0 votes

Delay in discharging of the capacitor for sequencing purpose

To switch off the N-channel MOSFET, you require \$V_{GS} \approx 0\$, which can never happen in this arrangement. Moreover, it's wired as a source-follower, and it will always maintain \$V_S\$ a ...
Simon Fitch's user avatar
1 vote

What's the real absolute maximum output voltage of the 74LVC07?

It's not clear what the actual output structure is. My (conservative) interpretation is that the note applies only to negative input voltages, not to positive ones since there is no current rating for ...
Spehro Pefhany's user avatar
11 votes
Accepted

Logitech G604 Mouse button switch circuitry does something... unusual...? Does anyone know why?

The buttons are likely connected in a matrix, i.e. multiplexed. When nothing is pressed, there is no need to scan the matrix to determine which switch is closed. The mouse needs to send status packet ...
Justme's user avatar
  • 159k
6 votes
Accepted

Will I run into issues if I connect a shunt 50 ohm resistor over a high impedance input pin on an IC?

Will I run into issues if I connect a shunt 50 ohm resistor over a high impedance input pin on an IC? One result that may or may not be an "issue" is that the voltage at the high impedance ...
Math Keeps Me Busy's user avatar
2 votes
Accepted

Clarification on getting 1 Hz from a 32.768 kHz input using 74HC4060BQ-Q100

Yes, you're right. Specifically: Yes, fQ13 is fCP ÷ 16384 (i.e. 2^14). Yes, a D-type Flip-Flop (DFF) can be used for the final halving of fQ13 (1 Hz) to 1 . Nothing in particular. Follow the Typical ...
TonyM's user avatar
  • 23.6k
1 vote
Accepted

Is this the correct way to create a circuit that convert a 7-bit number to either binary or gray code? (digital logic design)

Try to create separate 7-bit Gray to binary and binary to Gray converters first (or start with 4-bit convertors to make it simple). Look at the similarities between the two, and it should be obvious ...
Pavan Kumar's user avatar
0 votes

Is this the correct way to create a circuit that convert a 7-bit number to either binary or gray code? (digital logic design)

If you look at your own logic block, it's easy to see that it only has four inputs and one output. So just make a module out of the red-circled portion, like this: I'll call it GB for now. Then the ...
periblepsis's user avatar
  • 11.2k

Top 50 recent answers are included