We kindly ask you to confirm that for SN54HC14-SP there has been no change of processing, technology and foundry applied on the associated QML-V (5962-8409101VCA) parts since October 1988. Your response is being used as justification for space flight.
No change of processing, technology, and foundry is defined as: the manufacturer has not changed the mask, foundry or production line and that all parts manufactured to date have been processed identically.