The document describes the transfer of semiconductor operations of Hitachi Electric and Mitsubishi Electric to Renesas Technology Corporation on April 1, 2003. These operations include microcomputer, logic, analog and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.). The document mentions the names Hitachi, Hitachi, Ltd., Hitachi Semiconductors, and other Hitachi brand names, which have all been changed to Renesas Technology Corp.
This manual provides detailed hardware information for the Renesas H8/3397 and H8/3337 single‑chip microcomputer families. It covers the CPU core, on‑chip peripherals, pin handling rules, and package specifications needed for system design.
The document also includes safety cautions, handling guidelines for NC and unused pins, and instructions for proper power‑up sequencing. It serves designers who need to integrate these microcontrollers into high‑speed control applications.
| CPU core | H8/300 CPU with 32‑bit internal architecture |
|---|---|
| On‑chip peripherals | ROM, RAM, four timers, SCI, HIF, keyboard controller, D/A and A/D converters, I/O ports |
| On‑chip ROM types | Flash (F‑ZTAT), PROM (ZTAT), mask ROM |
| Package mass | 64 g |
All unused input pins should be fixed to a defined high or low level to avoid noise‑induced errors.
Reset the LSI immediately after the power supply has been turned on to ensure a defined state.