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1. Overview
Section 1 Overview
1.1
Overview
The H8/300L Series is a series of single-chip microcomputers (MCU: microcomputer unit), built
around the high-speed H8/300L CPU and equipped with peripheral system functions on-chip.
Within the H8/300L Series, the H8/3857 Group and H8/3854 Group feature on-chip liquid crystal
display (LCD) controllers. Other on-chip peripheral functions include a LCD controller, timers,
serial communication interface, and an analog-to-digital (A/D) converter. Together these functions
make the H8/3857 Group and H8/3854 Group ideally suited for embedded control of systems
requiring an LCD display.
The H8/3857 Group comprises the H8/3855, with 40 kbytes of ROM and 2 kbytes of RAM on-
chip, the H8/3856, with 48 kbytes of ROM and 2 kbytes of RAM, and the H8/3857, with 60
kbytes of ROM and 2 kbytes of RAM. H8/3854 Group mask ROM versions are the H8/3852, with
16 kbytes of ROM and 1 kbyte of RAM on-chip, the H8/3853, with 24 kbytes of ROM and 1
kbyte of RAM, and the H8/3854, with 32 kbytes of ROM and 1 kbyte of RAM.
Two F-ZTAT versions—the H8/3857F and H8/3854F—are also available, with user-
programmable on-chip flash ROM. These models have 60 kbytes of ROM and 2 kbytes of RAM.
Note that the H8/3854 mask ROM and F-ZTAT versions have different ROM and RAM sizes.
Table 1.1 summarizes the features of the H8/3857 Group and H8/3854 Group.
Rev.3.00 Jul. 19, 2007 page 1 of 532
REJ09B0397-0300
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