RA8825 데이터 시트보기 (PDF) - RAIO
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RA8825 Datasheet PDF : 6 Pages
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RAiO TECHNOLOGY INC.
SEG0~SEG127 COM0~COM31 COMS_A[1:0]
COMS_B[1:0]
C[2:1]P C[2:1]M V0~V4 VLCD
33
Common
Drivers
128
Segment
Drivers
Voltage
Booster
RC
Oscillator
Test &
Power
Circuit
VREF
Voltage
Follower
Voltage
Regulator
GPIO
Driver I/F
Key Scan
Control
Block
& INT
DB[0:7]
RD(EN)
WR(R/W)
CS
D/C(RS)
C86
BIT4
P/S
KST[3..0]
KIN[4..0]
INT
IO[7..0]
EL_CHRG
EL_DCHG
CLK_SEL
EXT_CLK
RST
TEST[2..0]
FG
S[1:0]
Register
Block
Control Control Control
Scan
Cursor Scroll
LCDC Control Block
MPU
I/F
Block
528bytes
Display RAM + Buffer
5. Block Diagram
The RA8825 consists of Display RAM, Command Registers, LCD Controller, LCD Driver, Voltage Booster,
Voltage Regulator, MPU Interface and Key-Scan circuit.
116 COM23
115 COM24
114 COM25
113 COM26
112 COM27
111 COM28
110 COM29
109 COM30
108 COM31
107 COMS_B0
106 COMS_B1
P2
P1
COM15 11
COM14 10
X
(8758µm x 1148 µm ) (0, 0)
Logo
COM13 9
COM12 8
COM11 7
Top View
COM10 6
5
COM9
RA8825
4
COM8
3
COM7
Y
2
COM6
1
COM5
RA8825
128x33 Graphic LCD Driver
Preliminary Version 1.1
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