Robert,
On some of the devices you mentioned, JEDEC does the standard. However,
on microcontrollers, FPGA's, etc... the competition is so fierce that
the manufacturers deliberately use different pinouts so that there can
be no substitution of parts.
Max Bernhardt
Woodward Governor Co.
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From: Yerkes, Robert
To: [log in to unmask]
Subject: [TN] Orientation of PLCC's and QFP's