The National Semiconductor SCANSTA111SM-NS is a CMOS microprocessor circuit in a PB (plastic) package. It is a test-access or boundary-scan controller for JTAG chains, not a general-purpose CPU.
Lifecycle check — still active, but watch the RoHS status
That's fine for repair, MRO, or legacy production where the exemption applies, but a showstopper for any new design that must meet RoHS. If you need a drop-in replacement for a RoHS-mandated line, this isn't it.
