Hitachi H8/300L Series Manual page 64

Single-chip microcomputer
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H8/3753, H8/3754
The H8/3754 Series microcomputers are
8-bit single chip microcomputers that can
directly drive vacuum fluorescent displays
(VFD).
The H8/3753 and H8/3754 microcomputers
integrate, around an H8/300L CPU core, a
rich set of peripheral functions, including
24 and 32 kbytes of ROM, 1024 bytes of
RAM, a VFD (vacuum fluorescent display)
controller/driver, timers, two serial
communications interfaces, a 14-bit PWM,
an A/D converter, and I/O ports. Since these microcomputers include high breakdown
voltage pins that can directly drive VFD panels, they are particularly suited for use in
applications that require VFD.
Additionally, the H8/3754 Series includes ZTAT™ (zero turn around time) versions of the
H8/3726 that allow users to freely write programs to the on-chip PROM.
Features
• 24 and 32 kbytes of on-chip ROM
• 1024 bytes of on-chip RAM
• VFD controller/driver
— Digit pins: 1 to 16 pins
— Segment pins: 1 to 28 pins (of which 8 also function as digit pins)
— Function supporting a variable number of display digits
— Eight level dimmer function
• Five 8-bit multi-function timer channels
— Timer A: 8-bit interval timer or clock timer
— Timer B: 8-bit reload timer or event counter
— Timer C: 8-bit reload timer or event counter
— Timer D: 8-bit event counter
— Timer E: 8-bit reload timer
• Serial communications interface (two channels)
— SCI1: 8- or 16-bit clock synchronous transfers
— SCI2: 8-bit clock synchronous transfers (includes a 32-byte data buffer)
64

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