The H8S/2339 Group is a series of microcomputers (MCUs: microcomputer units), built around

the H8S/2000 CPU, employing Renesas’ proprietary architecture, and equipped with peripheral

functions on-chip.

The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general

registers and a concise, optimized instruction set designed for high-speed operation, and can

address a 16-Mbyte linear address space. The instruction set is upward-compatible with H8/300

and H8/300H CPU instructions at the object-code level, facilitating migration from the H8/300,

H8/300L, or H8/300H Series.