Ordering number : ENN*6853
CMOS IC
LC73101C
LCD Driver IC
Preliminary
Overview
The LC73101C is a dot matrix LCD driver IC that
includes an on-chip display data RAM with a one-to-one
correspondence between bits in RAM and display pixels
on the LCD panel. The LC73101C provides display data
RAM that can store 80 × 132 bits of data and can
implement a large-screen display system with a single
chip.
power supply voltage adjustment, temperature-
compensated reference voltage, and display contrast
adjustment electronic potentiometers circuits, the
LC73101C can implement portable display systems with
low power consumption and a minimal number of external
components.
Features
• 132 × 80-dot display
• Microcontroller interface (for both Intel and Motorola
microcontrollers)
• On-chip display RAM (80 × 132 = 10,560 bits)
• Low power
The LC73101C provides 80 common output circuits and
132 segment output circuits, and can display up to 80 ×
132 dots (8 characters × 4 lines of kanji text using a 16 ×
16-dot kanji font) with a single chip. The LC73101C also
provides a master/slave function that allows two
LC73101C chips to be combined to implement twice the
display area: 160 × 132 dots.
• Low-voltage operation: V = 1.8 to 3.6 V
DD
• High-precision reference voltage circuit (Variable
temperature compensation coefficients)
• LCD drive 6× voltage step-up circuit (3×, 4×, 5×, or 6×
can be selected by commands from the microcontroller.)
• Built-in high-precision RC oscillator circuit
• Contrast adjustment electronic potentiometer circuit
• Partial display function (Allows 8, 16, 24, 32, 40, 48,
56, 64, 72, or 80 lines to be displayed under the control
of commands sent from the microcontroller.)
The LC73101C provides a partial display function that
allows the number of lines displayed to be set to 8, 16, 24,
32, 40, 48, 56, 64, 72, or 80 lines by commands sent from
the system microcontroller. This allows the current drain
to be reduced significantly when only a smaller number of
lines needs to be displayed.
• Supports synchronous operation using master/slave
connection.
This device includes built-in voltage step-up circuits with
factors of 3×, 4×, 5×, and 6× to provide high-quality
display even when a high duty cycle is required. The
number of step-up circuit stages used can be set by
commands from the system microcontroller.
Since the display RAM read and write operations do not
require the external operating clock, the LC73101C can
operate at low power. Furthermore, since the LC73101C
provides built-in LCD drive power supply, LCD drive
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
11901RM (OT) No. 6853-1/34
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