PCF8536AT datasheet(14/54 Pages) NXP

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PCA85233

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Product data sheet

Rev. 5 — 12 November 2018

14 of 54

NXP Semiconductors

PCA85233

Automotive 80 × 4 LCD driver for low multiplex rates

– bit AB to 0 or 1

– bits BF[1:0] to 00 (or to a desired blinking mode)

• writing meaningful information (for example, a logo) into the display RAM

• After the initialization, the display can be switched on by setting bit E = 1 with the

mode-set command or left off (blank) with bit E = 0.

7.5 Possible display configurations

The PCA85233 is a versatile peripheral device designed to interface between any

microcontroller to a wide variety of LCD segment or dot matrix displays (see Figure 6). It

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

80 segments.

The display configurations possible with the PCA85233 depend on the required number of

active backplane outputs. A selection of display configurations is given in Table 15.

All of the display configurations given in Table 15 can be implemented in a typical system

as shown in Figure 7.

[1]

7 segment display has 8 segments/elements including the decimal point.

[2]

14 segment display has 16 segments/elements including decimal point and accent dot.

Fig 6.

Example of displays suitable for PCA85233

Table 15.

Selection of possible display configurations

Number of

Backplanes

Icons

Digits/Characters

Dot matrix:

segments/

elements

7-segment[1]

14-segment[2]

320

320 (4

 80)

240

240 (3

 80)

160

160 (2

 80)

180

80 (1

 80)

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