PCA85232DA datasheet(6/54 Pages) NXP

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PCA85232

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Product data sheet

Rev. 1 — 8 December 2010

6 of 54

NXP Semiconductors

PCA85232

LCD driver for low multiplex rates

Functional description

The PCA85232 is a versatile peripheral device designed to interface between any

microprocessor or 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 160 segments.

The display configurations possible with the PCA85232 depend on the required number of

active backplane outputs. A selection of display configurations is given in Table 4.

All of the display configurations given in Table 4 can be implemented in a typical system

as shown in Figure 4.

Fig 3.

Example of displays suitable for PCA85232

Table 4.

Selection of possible display configurations

Number of

Backplanes

Icons

Digits/Characters

Dot matrix/

Elements

7-segment

14-segment

640

640 dots (4

× 160)

480

480 dots (3

× 160)

320

320 dots (2

× 160)

160

160 dots (1

× 160)

7-segment with dot

14-segment with dot and accent

013aaa312

dot matrix

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