From N64 controller I think
Package
Label (top):
Nintendo CNT-NUS MX1720FC C9943 MD1Q6820 TAIWAN
Die
Size: ? x ? um
Text:
MegaChips (C) (M) MXIC 1995 3502
From N64 controller I think
Label (top):
Nintendo CNT-NUS MX1720FC C9943 MD1Q6820 TAIWAN
Size: ? x ? um
Text:
MegaChips (C) (M) MXIC 1995 3502