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Express PCB help needed — Parallax Forums

Express PCB help needed

lardomlardom Posts: 1,659
edited 2010-05-09 17:01 in General Discussion
I would like to transfer my circuit from a breadboard to a small pcb using Express pcb. Can anyone give me the dimensions of the P8X32A-Q44 (surface mount prop)? Or does anyone have a Express pcb schematic that I could study?

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Comments

  • LeonLeon Posts: 7,620
    edited 2010-05-09 11:12
    It's in the data sheet, including footprint details.

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    Leon Heller
    Amateur radio callsign: G1HSM
  • hover1hover1 Posts: 1,929
    edited 2010-05-09 12:52
    There are a few boards to look at on Ray's site:

    http://vaguelogic.com/propeller/PropPCB/PCB_Boards.htm

    I have attached a schematic symbol and part symbol for the Q44.

    Jim
    lardom said...
    I would like to transfer my circuit from a breadboard to a small pcb using Express pcb. Can anyone give me the dimensions of the P8X32A-Q44 (surface mount prop)? Or does anyone have a Express pcb schematic that I could study?

    s
    s
    Parallax Propeller (P8X32A-Q44).s
    3K
    p
    p
    P8X32A-Q44.p
    1K
  • lardomlardom Posts: 1,659
    edited 2010-05-09 16:17
    Leon said...
    It's in the data sheet, including footprint details.

    The only·footprint details I can find are width, length and height. I'm·trying to find pad and spacing details. This will be my first try at surface mount soldering but Express PCB only has Basic Stamps in its component library. I looked again after I saw your post but I still can't find what I'm looking for.
    My inexperence shows.

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  • LeonLeon Posts: 7,620
    edited 2010-05-09 16:53
    Pad and spacing details are there, see page 35 (top left). I used them to create a footprint for the Pulsonix PCB software I use.

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    Leon Heller
    Amateur radio callsign: G1HSM
  • lardomlardom Posts: 1,659
    edited 2010-05-09 17:01
    Got it. Thanks

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