PCA85133 NXP [NXP Semiconductors], PCA85133 Datasheet - Page 30

• Manufacturer Part Number: PCA85133
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
12. Application information
PCA85133_1
Product data sheet
12.1 Cascaded operation
In large display configurations up to 16 PCA85133 can be recognized on the same
I
I
Table 18.
When cascaded PCA85133 are synchronized, they can share the backplane signals from
one of the devices in the cascade. Such an arrangement is cost-effective in large LCD
applications since the backplane outputs of only one device need to be through-plated to
the backplane electrodes of the display. The other PCA85133 of the cascade contribute
additional segment outputs, but their backplane outputs are left open-circuit
(see
Cluster
1
2
2
2
C-bus by using the 3-bit hardware subaddress (A0, A1, and A2) and the programmable
C-bus slave address (SA0).
Figure
Addressing cascaded PCA85133
20).
Bit SA0
0
1
Rev. 1 — 23 October 2009
Pin A2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Universal LCD driver for low multiplex rates
Pin A1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Pin A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
PCA85133
© NXP B.V. 2009. All rights reserved.
Device
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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