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HD6433238CP Datasheet(PDF) 11 Page - Renesas Technology Corp |
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HD6433238CP Datasheet(HTML) 11 Page - Renesas Technology Corp |
11 / 301 page Section 1. Overview 1.1 Overview The H8/325 Series is a series of single-chip microcomputers integrating a CPU core together with a variety of peripheral functions needed in control systems. The H8/300 CPU is a high-speed processor featuring powerful bit-manipulation instructions, ideally suited for realtime control applications. The on-chip supporting modules include ROM, RAM, two types of timers (16-bit free-running timer and 8-bit timer), a serial communication interface, I/O ports, and a parallel handshaking interface. The on-chip memory sizes of the three chips in the H8/325 Series are: H8/3257: 60-kbyte ROM; 2-kbyte RAM H8/3256: 48-kbyte ROM; 2-kbyte RAM H8/325: 32-kbyte ROM; 1-kbyte RAM H8/324: 24-kbyte ROM; 1-kbyte RAM H8/323: 16-kbyte ROM; 512-byte RAM H8/322: 8-kbyte ROM; 256-byte RAM The H8/325 Series 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 H8/3257, H8/3256, H8/325, H8/323, and H8/322 are available in a masked ROM version, or a ZTAT™* version with electrically programmable ROM that can be programmed at the user site. * ZTAT is a registered trademark of Hitachi, Ltd. 1 |
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