Ralph Jefferson

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11 years, 5 months ago.

mbed NXP LPC1768 - Dimension between Dip 40 Pin rows?

The pitch between the pins of the Dip 40 is 0.1". What is the pitch between the 2 rows? Also, what is the lead size and required hole size for the 40pin Dip?

1 Answer

Martin Wolker
11 years, 5 months ago.

Pitch between the 2 rows is 0.9" (22.86 mm). Measured lead (pin) size is (0.63 x 0.63) mm so use min. 0.9 mm final hole.

Dimensions of mbed module are: 26.35 mm x 53.60 mm (55.25 mm with USB)

EDIT: You were right, I fixed the pitch between the rows. Added dimensions

Accepted Answer

Thank you for a quick reply but is this correct? I have module and it measures more closely to 0.9" (22.86). Can you confirm please? Is there a datasheet/drawing available? Many thanks, Ralph

posted by Ralph Jefferson 10 Jul 2013

Without measuring it, but isn't standard DIP 0.3" between rows, wide DIP (for example atmega in DIP package) 0.6", and mbed is one wider than that, 0.9".

posted by Erik - 10 Jul 2013