HD6433308 HITACHI [Hitachi Semiconductor], HD6433308 Datasheet - Page 19

• Manufacturer Part Number: HD6433308
• Description: Hitachi Single-Chip MicroComputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

Section 1. Overview
The H8/330 is a single-chip microcomputer with an H8/300 CPU core and a complement of on-
chip supporting modules. A variety of system functions are integrated onto the H8/330 chip.
The H8/300 CPU is a high-speed Hitachi-original processor with an architecture featuring powerful
bit-manipulation instructions, ideally suited for realtime control applications. The on-chip
supporting modules include 16K bytes of ROM, 512 bytes of RAM, a 16-bit free-running timer,
two 8-bit timers, two PWM timers, a serial communication interface, an A/D converter, dual-port
RAM, and I/O ports.
The H8/330 can operate in single-chip mode or in two expanded modes, depending on the memory
requirements of the application. The operating mode is referred to in this manual as the MCU
mode (MCU: MicroComputer Unit).
The H8/330 is available in a masked ROM version, in an electrically programmable ROM version
that can be programmed at the user site, or in a version with no ROM. The no-ROM version can be
used only in mode 1.
Section 1.1 shows a block diagram of the H8/330. Section 1.2 describes the main features of the
blocks. Section 1.3 shows the pin layout and describes the pin functions.
1