PCF8531U NXP [NXP Semiconductors], PCF8531U Datasheet - Page 15

• Manufacturer Part Number: PCF8531U
• Description: 34 x 128 pixel matrix driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
8. LCD waveforms and DDRAM to data mapping
PCF8531_4
Product data sheet
Fig 5.
(1) V
(2) V
V
V
Typical LCD driver waveforms
state1
state2
state1
state2
ROW 0
R0(t)
ROW 1
R1(t)
COL 0
C0(t)
COL 1
C1(t)
(t)
(t)
(t) = C1(t)
(t) = C1(t)
V
V
V
V
V
V
V
V
LCD
3
LCD
3
LCD
3
LCD
3
0 V
0 V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
SS
2
SS
2
LCD
2
3
4
5
SS
LCD
2
3
4
5
SS
LCD
2
3
4
5
SS
LCD
2
3
4
5
SS
The LCD waveforms and the DDRAM to display data mapping are shown in
Figure 6
V
V
R0(t)
R1(t)
2
2
0 2 4 6 8...
and
Figure
frame n
... 32
1 3 5 7...
7.
Rev. 04 — 13 June 2008
... 33
0 2 4 6 8...
frame n + 1
... 32
1 3 5 7...
... 33
34 x 128 pixel matrix driver
V
V
V
V
V
0 V
0 V
V
4
SS
4
4
4
V
V
SS
mgs466
LCD
LCD
V
V
V
V
5
V
LCD
5
LCD
V
5
5
PCF8531
© NXP B.V. 2008. All rights reserved.
V
V
state1
state2
Figure
(t)
(t)
15 of 44
5,