PCF8801 Datasheet, PDF (7/20 Pages) NXP Semiconductors – LCD driver for 140 x 2 segments

Philips Semiconductors
LCD driver for 140 × 2 segments
Product specification
PCF8801
Table 4 Routing of data to LCD pixels
(First 20 bits, DIR = 0).
SHIFT REGISTER DATA OUTPUT
SH1_1
SH1_2
SH2_1
SH2_2
SH3_1
SH3_2
SH4_1
SH4_2
SH5_1
SH5_2
SH6_1
SH6_2
SH7_1
SH7_2
SH8_1
SH8_2
SH9_1
SH9_2
SH10_1
SH10_2
SH11_1
SH11_2
LCD PIXEL
7
5
3
1
9
6
4
2
11
10
8
SHIFT REGISTER DATA OUTPUT
SH12_1
SH12_2
SH13_1
SH13_2
SH14_1
SH14_2
SH15_1
SH15_2
SH16_1
SH16_2
SH17_1
SH17_2
SH18_1
SH18_2
SH19_1
SH19_2
SH20_1
SH20_2
LCD PIXEL
12
13
14
17
19
15
16
18
20
The PCF8801 supports a 5 × 8 LCD character structure as
shown in Fig.3. Because the bottom line of pixels are not
often used in most applications, their data could be used
instead to control LCD icons.
handbook, full pagewidth
2000 Feb 04
top of LCD
1 2 12 19 20
1 2 12 19 20
3 4 8 17 18
3 4 8 17 18
5 6 10 14 16
5 6 10 14 16
7 9 11 13 15
7 9 11 13 15
pixel locations
top of LCD
1 2 12 19
3 4 8 17
6 10 14 16
6 10 14 16
7 9 11 13 15
pixels used to display digit 2
MGL917
Fig.3 LCD character pixel locations (looking from front).
7