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PCA85134H/Q900/1

Automotive 60 x 4 LCD segment driver for multiplex rates up to 1:4

NXP Semiconductors. 

NXP Semiconductors

PCA85134

Automotive 60 x 4 LCD segment driver for low multiplex rates

7. Functional description

The PCA85134 is a versatile peripheral device designed to interface between any

microcontroller to a wide variety of LCD segment or dot matrix displays (see Figure 3). It

can directly drive any static or multiplexed LCD containing up to four backplanes and up to

60 segments.

The display configurations possible with the PCA85134 depend on the required number of

active backplane outputs. A selection of display configurations is given in Table 5.

All of the display configurations given in Table 5 can be implemented in a typical system

as shown in Figure 4.

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VHJPHQWZLWKGRW

VHJPHQWZLWKGRWDQGDFFHQW

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Fig 3. Example of displays suitable for PCA85134

Table 5. Selection of possible display configurations

Number of

Backplanes

Icons

Digits/Characters

7-segment[1]

14-segment[2]

4

240

30

15

3

180

22

11

2

120

15

7

1

60

7

3

[1] 7-segment display has eight elements including the decimal point.

[2] 14-segment display has 16 elements including decimal point and accent dot.

Dot matrix/

Elements

240 (4  60)

180 (3  60)

120 (2  60)

60 (1  60)

PCA85134

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 2 — 6 May 2014

© NXP Semiconductors N.V. 2014. All rights reserved.

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