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PCF8534 Datasheet(PDF) 40 Page - NXP Semiconductors

Part # PCF8534
Description  Universal LCD driver for low multiplex rates
PDF  40 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF8534 Datasheet(HTML) 40 Page - NXP Semiconductors

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NXP Semiconductors
PCF8534
Universal LCD driver for low multiplex rates
© NXP B.V. 2007.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 20 February 2007
Document identifier: PCF8534_0
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
17. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
4
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
5.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
6
Functional description . . . . . . . . . . . . . . . . . . . 6
6.1
Power-on-reset . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.2
LCD bias generator . . . . . . . . . . . . . . . . . . . . . 7
6.3
LCD voltage selector . . . . . . . . . . . . . . . . . . . . 7
6.4
LCD drive mode waveforms . . . . . . . . . . . . . . . 9
6.4.1
Static drive mode . . . . . . . . . . . . . . . . . . . . . . . 9
6.4.2
1:2 Multiplex drive mode. . . . . . . . . . . . . . . . . 10
6.4.3
1:3 Multiplex drive mode. . . . . . . . . . . . . . . . . 12
6.4.4
1:4 Multiplex drive mode. . . . . . . . . . . . . . . . . 13
6.5
Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5.1
Internal clock . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5.2
External clock . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.6
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.7
Display register . . . . . . . . . . . . . . . . . . . . . . . . 14
6.8
Segment outputs. . . . . . . . . . . . . . . . . . . . . . . 14
6.9
Backplane outputs . . . . . . . . . . . . . . . . . . . . . 14
6.10
Display RAM . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.11
Data pointer . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.12
Subaddress counter . . . . . . . . . . . . . . . . . . . . 16
6.13
Output bank selector . . . . . . . . . . . . . . . . . . . 16
6.14
Input bank selector . . . . . . . . . . . . . . . . . . . . . 17
6.15
Blinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7
Application design-in information . . . . . . . . . 19
7.1
Characteristics of the I2C bus . . . . . . . . . . . . . 19
7.2
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3
START and STOP conditions . . . . . . . . . . . . . 19
7.4
System configuration . . . . . . . . . . . . . . . . . . . 19
7.5
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.6
PCF8534 I2C-bus controller . . . . . . . . . . . . . . 20
7.7
Input filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.8
I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 21
7.9
Command decoder . . . . . . . . . . . . . . . . . . . . . 23
7.10
Display controller . . . . . . . . . . . . . . . . . . . . . . 24
7.11
Cascaded operation . . . . . . . . . . . . . . . . . . . . 24
8
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1
ESD values . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9
Static characteristics . . . . . . . . . . . . . . . . . . . . 28
10
Dynamic characteristics . . . . . . . . . . . . . . . . . 29
11
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 32
12
Handling information . . . . . . . . . . . . . . . . . . . 33
13
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
13.1
Introduction to soldering. . . . . . . . . . . . . . . . . 34
13.2
Wave and reflow soldering. . . . . . . . . . . . . . . 34
13.3
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 34
13.4
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 35
14
Revision history . . . . . . . . . . . . . . . . . . . . . . . 37
15
Legal information . . . . . . . . . . . . . . . . . . . . . . 38
15.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 38
15.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
15.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 38
15.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 38
16
Contact information . . . . . . . . . . . . . . . . . . . . 38
17
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40



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