PCF8820U Philips Semiconductors, PCF8820U Datasheet - Page 11

• Manufacturer Part Number: PCF8820U
• Description: 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
• Manufacturer: Philips Semiconductors

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V
V
state1
state2
V state1 (t)
V state2 (t)
(t) = C1(t)
(t) = C1(t)
ROW 0
R0(t)
ROW 1
R1(t)
COL 0
C0(t)
COL 1
C1(t)
0.5V LCD
0.5V LCD
0.5V LCD
0.5V LCD
V LCD
V SS
V LCD
V SS
V LCD
V SS
V LCD
V SS
V LCD
0 V
V LCD
0 V
0.5V LCD
0.5V LCD
V LCD
V LCD
Frame
R0(t).
R1(t).
Fig.5 Typical LCD driver waveforms at a multiplex rate of 1 : 8, for partial screen mode and bias system
0
0
1
2
N1 1
7
Example for setting grey-scale register.
ROW0, COL0: GS = 0
ROW1, COL0: GS = 63 (63 will be set to 64; see Section 8.1.8).
ROW0, COL1: GS = 63 (63 will be set to 64; see Section 8.1.8).
ROW1, COL0: GS = 63 (63 will be set to 64; see Section 8.1.8).
0
0
1
2
N1 2
7
0
0
1
2
N1 3
7
0
0
1
N1 4
2
7
0
0
1
N2 1
2
7
1
/
2
MGT117
.
state1
state2