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A member of the 78K/0S family of MCUs.

Package

(Logo) MYS
D78F9177AY
0722KMA20

Die

(C) NEC 2000
D78F9177AY

siliconprawn.org_map_nec_d78f9177ay_single_nec_d78f9177ay_infosecdj_mz_nikpa40x.thumb.jpg

Top metal imaged using Nikon Plan Apo 40x/1.0 oil