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HM17CM256
128XRGBX82 OUTPUT LCD DRIVER IC
with built-in RAM
I
INSTRUCTION
HM17CM256 is a dot-Matrix LCD drive IC with 82
commons (80 + 2 icons) and 384 segments (128 X
RGB) drive ports for 256 colors driving.
This IC stores the serial or parallel BIT data
transferred by the microcomputer on the built-in
RAM (81,920 bits for graphic + 2048 bits for icons)
and generates the signals to drive LCD panel.
Color graphic display is achieved by selecting 8
gray (256 color) levels out of 32 gray palettes
independently.
This IC is suitable for battery-operated system,
hand-carrying information equipment by ensuring
low power consumption, low power supply (1.7V ~ )
and a wide range of operating voltage.
And 164 x 128 display (maximum) is possible with
master and slave application.
I
FEATURES
256 color bitmap LCD driver
LCD drive outputs
Display RAM capacity 81,920bits (for graphic usage)
2,048bits (for icon usage)
Gradation display
8 gradations can be selected from 32 gradations by PWM control
Black/White display
82
×
(128
×
3) bits display is possible
8 bit BUS interface
directly connectable with 68 / 80 series CPU
RAM data length
8 BIT / 16 BIT selectable
Serial interface available
Programmable duty / bias ratio with command
Various instruction set
display data read/write, display ON/OFF, positive/negative display, page address set
display start line address set, partial display, bias select,
column address set, all display ON/OFF, boosting selection, n line inversion mode
read modified write, power save …
Built-in voltage booster (programmable) : 7
×
boosting
Built-in voltage regulator
Controllable contrast with built-in electric volume (128 steps)
Low current consumption
Logic supply
1.7V ~ 3.3V
LCD drive supply
5.0V ~ 18.0V
C-MOS silicon process
Package
bumped chip / bare chip
128
×
RGB segments, 80 commons for graphic and 2 commons for icons
Preliminary Specification(0.3)
HM17CM256
EXTERNAL SHAPE
01/02/09