Protoboards & High Frequencies

[Nobody]

If I wanted to use a MCU or clocked PLD with a protoboard, what would be
the maximum frequency I could work at without the protoboard's stray
capacitance mucking things up?

If I were to use a chip (PIC) that had an internal timer rather than an
external crystal or ceramic resonator, would I be able to work with higher
frequencies (> 4MHz)?

- Nobody

 

[Nobody]

20MHz works? That's great. I was under the impression that if you wanted to
go higher than 4, you had to use a PWB. That'll save me some money.

 

[john jardine]

If I wanted to use a MCU or clocked PLD with a protoboard, what would be
the maximum frequency I could work at without the protoboard's stray
capacitance mucking things up?

If I were to use a chip (PIC) that had an internal timer rather than an
external crystal or ceramic resonator, would I be able to work with higher
frequencies (> 4MHz)?

- Nobody

Regularly run 20Mhz PICs on protoboard with no problems. Faster logic and
the protoboard has been good to 100MHz.
Analogue stuff is usually OK to say 20-30MHz. It's the wire link
connections that's the main killer of performance.
regards
john

 

[JeffM]

If I wanted to use a MCU or clocked PLD with a protoboard...

20MHz works? That's great. I was under the impression that
if you wanted to go higher than 4, you had to use a PWB.
Nobody (protospherex @ gmail_nospam_.com)

To be clear, we are all talking about
http://www.google.com/images?q=prot...s+OR+utoronto+OR+sld005+OR+theelectronicstore
and not
http://www.google.com/images?q=vect...ngentsoft+OR+circuitspecialists+OR+mindspring

Right?
..
..
Note to protospherex:
When reading, top-posting really stinks for thread continuity.

 

[Nobody]

To be clear, we are all talking about
http://www.google.com/images?q=prot...s+OR+utoronto+OR+sld005+OR+theelectronicstore
and not
http://www.google.com/images?q=vect...ngentsoft+OR+circuitspecialists+OR+mindspring

Right?
.
.
Note to protospherex:
When reading, top-posting really stinks for thread continuity.

I was talking about protoboards and not the vector boards in the second
link.

(Request noted. Thank you.)

 

[Philip Conrad]

The may be relevant to the postion of your cranial cavity. Located so
close to your rectum, as opposed to its natural alignment, probably
causes interference with more than just your machine.