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PCF8820 Datasheet(PDF) 9 Page - NXP Semiconductors

Part # PCF8820
Description  67 x 101 Grey-scale/ECB colour dot matrix LCD driver
PDF  60 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF8820 Datasheet(HTML) 9 Page - NXP Semiconductors

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MGT115
VLCD
V2
V3
V4
V5
VSS
ROW 0
R0(t)
VLCD
V2
V3
V4
V5
VSS
ROW 1
R1(t)
VLCD
V2
V3
V4
V5
VSS
COL 0
C0(t)
VLCD
V2
V3
V4
V5
VSS
COL 1
C1(t)
state1
state2
4
79 16
x
x
88 16
x
x
88 16
x
x
79
16
x
x
79
16
x
x
4
5
4
4
N11
N12
N13
N14
N21
Frame
0
012
66
0
012
66
0
012
66
0
012
66
0
012
66
VLCD
V3
V3 − V2
VLCD − V2
0 V
Vstate1(t)
VLCD
V3
V3 − V2
VLCD − V2
0 V
Vstate2(t)
−VLCD
V4 − VLCD
V4 − V5
− V5
0 V
−VLCD
V4 − VLCD
V4 − V5
− V5
0 V
MGT115
VLCD
V2
V3
V4
V5
VSS
ROW 0
R0(t)
VLCD
V2
V3
V4
V5
VSS
ROW 1
R1(t)
VLCD
V2
V3
V4
V5
VSS
COL 0
C0(t)
VLCD
V2
V3
V4
V5
VSS
COL 1
C1(t)
state1
state2
4
79 16
x
x
88 16
x
x
88 16
x
x
79
16
x
x
79
16
x
x
4
5
4
4
N11
N12
N13
N14
N21
Frame
0
012
66
0
012
66
0
012
66
0
012
66
0
012
66
VLCD
V3
V3 − V2
VLCD − V2
0 V
Vstate1(t)
VLCD
V3
V3 − V2
VLCD − V2
0 V
Vstate2(t)
−VLCD
V4 − VLCD
V4 − V5
− V5
0 V
−VLCD
V4 − VLCD
V4 − V5
− V5
0 V
Fig.3 Typical LCD driver waveforms at a multiplex rate of 1 : 67.
Example for setting grey-scale register.
ROW0, COL0: GS = 17
ROW1, COL0: GS = 0
ROW0, COL1: GS = 30
ROW1, COL0: GS = 63 (63 will be set to 64; see Section 8.1.8).
Vstate1(t) = C1(t) − R0(t)
Vstate2(t) = C1(t) − R1(t)



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