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IC Answered

I'm using an ATmega328 for a projekt and was wondering if I need to use a resistor for the input voltage?

Thanks,
Sofus Christensen

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Discussions

0
iceng
iceng

Best Answer 8 years ago

You don't need a resistor, provided the 5 volt power supply is regulated,
and it is good practice to have a o.1 uF disc capacitor as close to the
power pins of the IC ( +5 and ground ) as possible.
Then if the regulator is 2" away a 47 uF  6 VDC electrolytic capacitor
very close to the power pins, a good place is next to the disc cap.

Using a low profile socket is a very good strategy when the IC gets
damaged.

A

0
iceng
iceng

8 years ago

You got to learn about trading information for awarding the best answer if you want good helpful responses to questions :-(

0
Balls of Kevlar
Balls of Kevlar

Answer 8 years ago

I will be using 5 volts, is that enough

0
iceng
iceng

Answer 8 years ago

It is enough for a ATmega328 but NO more.
  • Is this the 24 DIP package ?
  • Does this contains the bootloader ?
  • Are you making a socket and circuit for this ?
  • Are you soldering ( not recommended ) it into place ?
  • Are you buying a circuit for this IC DIP ?
0
Balls of Kevlar
Balls of Kevlar

Answer 8 years ago

1. It is just the ic
2. Yes it has an integrated bootloader
3. No, no socket and yes it will be the "mind" of a binary clock
4. I think so, because when i'm finished, i will not open the box and take out the ic
5. No i will make the circuit myself

0
Balls of Kevlar
Balls of Kevlar

Answer 8 years ago

I have done that won't you answer me?????

0
iceng
iceng

8 years ago

Trying to understand an incomplete question, because I believe I know the next  two questions.

So what is the input voltage,
  1. Is it an AC or DC voltage ?
  2. Is it a Power voltage ?
  3. Is it a signal voltage ?
  4. What is the peak ( highest ) value ?
  5. Is it a digital ( on / off ) type of voltage ?
  6. What pin are you planing to connect to ?
  7. Are you interested in measuring the voltage ?
  8. Are you interested in timing this voltage ?
  9. What is this voltage do for your project ?

0
Balls of Kevlar
Balls of Kevlar

Answer 8 years ago

sorry for the incomplete question.
1. It is DC
2. Yeah it is just power for the IC
3. No
4. I will be using 5v
5. No, it will be on all the time
6. The power pin
7. No
8. ?
9. Give power so i can use the ic