Rob Butts wrote:
>I'm trying to create a footprint for a Microchip signal controller.
>I'm having trouble locating the horizontal pins with respect to the
>vertical pins. The datasheet gives dimensions for chip width and
>height, pinwidth and pin pitch. It doesn't give the distanc
DJ Delorie wrote:
> Lacking any evidence to the contrary on the data sheet, I just assume
> the pins (as a group) are centered on each edge.
Me too. They probably have a loose tolerance for that dimension since
it's a function of molding registration -- lead frame vs. body.
John
--
Ecosensory
> It doesn't give the distance from chip edge to were the first pin
> from the edge.
Lacking any evidence to the contrary on the data sheet, I just assume
the pins (as a group) are centered on each edge.
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On Fri, Oct 17, 2008 at 04:38:58PM -0400, Rob Butts wrote:
>
>I'm trying to create a footprint for a Microchip signal controller.
>I'm having trouble locating the horizontal pins with respect to the
>vertical pins.
I've attached the script I use to make QFPs using jcl's perl module.
F
I'm trying to create a footprint for a Microchip signal controller.
I'm having trouble locating the horizontal pins with respect to the
vertical pins. The datasheet gives dimensions for chip width and
height, pinwidth and pin pitch. It doesn't give the distance from
chip edge to w
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