Rated 4 out of 5 stars.
Looking for a hard-to-find Hitachi chip?
This is a brand new, old stock (NOS) Hitachi HD6821P, which is also marked as HD46821P.
It's a Peripheral Interface Adapter (PIA) in a PDIP40 package.
This is the kind of chip used in vintage computers, arcade games, and industrial controls from the late 70s and 80s.
If you're repairing classic electronics, having this NOS part on hand can be a lifesaver.
