identify NPC chips

Nippon Precision Circuits [PCI vendor ID ]

SM8211M POCSAG Decoder For Pagers
SM8212B POCSAG Decoder For Multiframe Pagers
SM8213AM POCSAG Decoder For Multiframe Pagers
SM8223A FSK Decoder and DTMF Receiver IC
SM8224C Dual-Tone Receiver IC
SM8230A Tone Dialer with Built-in Piezo Driver