The µPD78044H, µPD78045H, and µPD78046H are µPD78044H sub-series products in the 78K/0 series.

These microcomputers are advanced models of the µPD78044A sub-series, featuring the added N-ch open-drain I/O ports.

In addition, the µPD78P048B (one-time PROM or EPROM model) that can operate in the same voltage range as that of the mask ROM models, and various development tools are provided.