RA6963
Preliminary Version 1.3
Dot Matrix LCD Controller
< Figure 9-3 >
9-4 Application Block Diagram
All LCD require two power sources, VDD for logic circuits and VEE for Liquid Crystal (LC) drive. Some
graphics LCD modules will run directly of a single VDD supply by generating the VEE voltage on-board;
others will require an external DC-DC converter to generate the negative VEE voltage. Refer to
individual specifications for details.
RA6963
SD0
|
SD7
SD0
|
SD7
8-Bit
WR
RD
CE
WR
RD
CE
RA66256
SRAM
4-Bit
C/D
C/D
RST
FS
RST
FS1
2-Bit
X-Driver
80
X-Driver
80
X-Driver
80
Y-Driver
Y-Driver
64
64
GND
VDD
VEE
Power
Supply
128 X 240
LCD Panel
< Figure 9-4 >
RAiO TECHNOLOGY INC.
www.raio.com.tw
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RAIO [ RAIO TECHNOLOGY INC. ]
