This manual describes the hardware features of the H8S/2345 F-ZTATTM series chips, suitable for H8S/2345, H8S/2344, H8S/2343, H8S/2341, H8S/2340 chips
This manual describes the hardware of the Hitachi H8S/2345 series microcontrollers, which feature a 32‑bit H8S/2000 CPU core, on‑chip ROM/RAM, flash memory options, and a variety of on‑chip peripherals such as timers, watchdog, serial interfaces, A/D and D/A converters, and a data transfer controller. It also outlines the differences among the series members, including ROM‑less and F‑ZTAT versions.
The document includes sections on pin descriptions, operating mode selection, register configurations, memory maps, electrical characteristics, and exception handling. Appendices provide instruction set details, address tables, and package dimensions, making it a comprehensive reference for hardware designers and developers.
| CPU core | 32‑bit H8S/2000 |
|---|---|
| General registers | Sixteen 16‑bit registers with 32‑bit internal configuration |
| Linear address space | 16 Mbyte (architecturally 4 Gbytes) |
| On‑chip memory options | ROM, RAM, single‑power‑supply flash (F‑ZTAT), PROM (ZTAT), mask ROM |
The H8S/2345, H8S/2344, H8S/2343, and H8S/2341 have on‑chip ROM; the H8S/2340 does not.
F‑ZTAT stands for Flexible‑ZTAT, a trademark of Hitachi, Ltd.
The series uses a 32‑bit H8S/2000 CPU core.
The microcontrollers include a 16‑bit timer pulse unit, 8‑bit timers, watchdog timer, serial communication interface, A/D converter, D/A converter, I/O ports, and a data transfer controller.