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I'm designing a carrier card for the CY8CKIT eval module (CY8CKIT-143A specifically) and I want to make sure I have the correct dimension between the two mounting connectors. Does anyone have the eact dimension? It appears to be 21mm if I measure pin 1 to pin 1. Seems like an odd number, so I wanted to check. Thanks!
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Hi,
from the drill files provided with the Module it is 740mil or 18.796mm between the headers.
X92000Y121000
X102000
X18000Y121000
X8000
920mil - 180mil = 740mil (inner pins)
If your measure from left to left side it is of course 840mil or 21.336mm.
kind regards,
Achim
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Nearest I can measure with a micrometer and magnifying lens is a bit more - 21.33mm or 0.84". You are right - it is very odd! I was expecting it to be a round number in inches, or on the 2.54mm grid of the connectors themselves. The gap between the connector shells is about 15.5mm = 0.61", but that is not particularly useful for laying out a PCB.
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I just looked at this again and noticed that 21.33mm does not equal 0.84". Did you mean 0.54"?
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I stand by my sources! 21.33mm = 0.83976378".
This of course is the distance between similar pin-centres on each connector, so the pins in the left column of J1 to those in the left column of J2 (or the right column in each case).
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Here is the manufacture of the connectors.
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Hi,
from the drill files provided with the Module it is 740mil or 18.796mm between the headers.
X92000Y121000
X102000
X18000Y121000
X8000
920mil - 180mil = 740mil (inner pins)
If your measure from left to left side it is of course 840mil or 21.336mm.
kind regards,
Achim