A member of the 78K/0 Series of MCUs.
This sample seems to be pre-programmed at the factory, judging by the version mark on the package.
(Logo) JAPAN D78F0114M5 0229IP900 V1.0 DS
(C) NEC 2002 D78F0114M5
Top metal imaged using Nikon Plan Apo 40x/1.0 oil