Hi Pete,

The 6x just means that this measurement is the same for all 6 pins.  The "fractions" actually show the maximum and minimum possible values, so 0,50 / 0,25 means that the pin size can vary somewhat but is guaranteed to be between 0.50 and 0.25 mm wide.

Hope that helps,

Andrew

On 16/12/2007, pvm <pvmorici@gmail.com> wrote:

I'm looking at page 20 of this data sheet,
http://focus.ti.com/lit/ds/symlink/sn74lvc1t45.pdf

I'm a little confused as to what the fractions are saying. Is that a
tolerance range? and what does the 6x mean in front of the 0.50/0.25
fraction denoting the pin width.

While I'm on the topic I'm trying to design my first board with Eagle CAD to
interface with the Gumstix.  Any tips are appreciated.

Thanks,
-Pete
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