OKI Semiconductor
ML9055A-02
LCD Controller/Driver
PEDL9055A-02-01
Issue Date: Jul. 26, 2002
Preliminary
GENERAL DESCRIPTION
The ML9055A-02 is an LSI providing the bit map display on a dot matrix graphic LCD panel . With one chip, it is
possible to construct a graphic display system with a maximum of 128
×
128 dots. Since all the functions necessary
for driving the bit map type LCD panel are incorporated into a single chip, the ML9055A-02 allows to implement a
dot matrix graphic LCD display system of bit map type with only a few chips in combination with an 8-bit
microcomputer.
Using the CMOS process and a built-in RAM, the ML9055A-02 is highly suitable for displays in battery-operated
portable equipment.
FEATURES
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Liquid Crystal Display (LCD) controller and driver
Maximum display size: 128 columns
×
128 rows
Logic voltage: 1.8 to 3.0 V
LCD drive voltage: 4.0 to 16.0 V
Serial interface (3-line or 4-line, write only) and parallel interface
Built-in voltage multiplier and oscillator circuit for display timing control
LCD drive bias: 1/5 to 1/12
Duty ratio: 1/16 to 1/128
Voltage regulator temperature coefficient: –0.125%/
o
C
Voltage multiplier: x3, x4, x5, x6
Contrast adjustjment: 64 levels available
4-level gray scale
Partial display function
Scroll function
Frame frequency: 180 Hz
Package: Gold bump chip, TCP
ML9055A-02DVWA (Gold bump chip name)
ML9055A-02DVVAZ01L (General TCP name)
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