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SSD1820A/21
2
REV 1.4
01/03
SOLOMON
LCD Driving
Voltage Generator
2X / 3X / 4X / 5X /6X
DC/DC Converter,
Voltage Regulator,
Bias Divider,
Contrast Control,
Temperature
Compensation
COM0 to
COM63/79 SEG0~SEG127
VSS
V DD
D7
VL6
VCC
VR
GDDRAM
128 X 65 Bits (SSD1820A)
128 x 81 Bits (SSD1821)
Command Decoder
Parallel / Serial Interface
Command Interface
Display
Timing
Generator
193 Bit Latch (SSD1820A)
209 Bit Latch (SSD 1821)
HV Buffer Cell Level Shifter
Level
Selector
Oscillator
D6 D5 D4 D3 D2 D1 D0
(SDA)(SCK)
V SS
Block Diagram
ICONS
REF
INTRS
VCI
C1P
C2P
C3P
C 4P
C1N
C2N
VEXT
RES PS0
PS1
CS
D/ C
R/W
E
VL5
VL4
VL3
VL2
(WR) (RD)
C 5P
CL