Hitachi H8/329 Series Hardware Manual page 2

Preface
The H8/329 Series is a series of high-performance single-chip microcomputers having a fast
H8/300 CPU core and a set of on-chip supporting functions optimized for embedded control.
These include ROM, RAM, two types of timers, a serial communication interface, an A/D
converter, I/O ports, and other functions needed in control system configurations, so that compact,
high-performance systems can be realized easily. The H8/329 Series includes four chips: the
H8/329 with 32K-byte ROM and 1K-byte RAM; the H8/328 with 24K-byte ROM and 1K-byte
RAM; the H8/327 with 16K-byte ROM and 512-byte RAM; and the H8/326 with 8K-byte ROM
and 256-byte RAM.
The H8/329 and H8/327 are available in a masked ROM version, a ZTAT™* (Zero Turn-Around
Time) version, and a ROMless version, providing a quick and flexible response to conditions from
ramp-up through full-scale volume producion, even for applications with frequently-changing
specifications.
This manual describes the hardware of the H8/329 Series. Refer to the H8/300 Series
Programming Manual for a detailed description of the instruction set.
Notes: * ZTAT is a registered trademark of Hitachi, Ltd.