PCF8534AHL(2011) Просмотр технического описания (PDF) - NXP Semiconductors.

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производитель

PCF8534AHL
(Rev.:2011)

Universal LCD driver for low multiplex rates

NXP Semiconductors. 

NXP Semiconductors

PCF8534A

Universal LCD driver for low multiplex rates

7. Functional description

The PCF8534A is a versatile peripheral device designed to interface between any

microcontroller to a wide variety of LCD segment or dot matrix displays (see Figure 4). 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 PCF8534A 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 5.

dot matrix

7-segment with dot

14-segment with dot and accent

013aaa312

Fig 4. Example of displays suitable for PCF8534A

Table 4. 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)

PCF8534A

Product data sheet

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

Rev. 6 — 25 July 2011

© NXP B.V. 2011. All rights reserved.

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