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PCF8532 датащи(PDF) 44 Page - NXP Semiconductors

номер детали PCF8532
подробное описание детали  Universal LCD driver for low multiplex rates
PDF  44 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF8532 датащи(HTML) 44 Page - NXP Semiconductors

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NXP Semiconductors
PCF8532
Universal LCD driver for low multiplex rates
© NXP B.V. 2009.
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: 10 February 2009
Document identifier: PCF8532_1
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
19. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
4
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7
Functional description . . . . . . . . . . . . . . . . . . . 4
7.1
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 5
7.2
LCD bias generator. . . . . . . . . . . . . . . . . . . . . . 5
7.3
LCD voltage selector . . . . . . . . . . . . . . . . . . . . 6
7.4
LCD drive mode waveforms . . . . . . . . . . . . . . . 8
7.4.1
Static drive mode . . . . . . . . . . . . . . . . . . . . . . . 8
7.4.2
1:2 multiplex drive mode . . . . . . . . . . . . . . . . . . 9
7.4.3
1:3 multiplex drive mode . . . . . . . . . . . . . . . . . 11
7.4.4
1:4 multiplex drive mode . . . . . . . . . . . . . . . . . 12
7.5
Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.5.1
Internal clock. . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.5.2
External clock . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.6
Timing and frame frequency . . . . . . . . . . . . . . 13
7.7
Display register . . . . . . . . . . . . . . . . . . . . . . . . 13
7.8
Segment outputs. . . . . . . . . . . . . . . . . . . . . . . 13
7.9
Backplane outputs . . . . . . . . . . . . . . . . . . . . . 14
7.10
Display RAM . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.11
Data pointer . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.12
Subaddress counter . . . . . . . . . . . . . . . . . . . . 17
7.13
Output bank selector. . . . . . . . . . . . . . . . . . . . 17
7.14
Input bank selector . . . . . . . . . . . . . . . . . . . . . 17
7.15
Blinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.16
Characteristics of the I2C-bus . . . . . . . . . . . . . 18
7.16.1
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.16.2
START and STOP conditions . . . . . . . . . . . . . 19
7.16.3
System configuration . . . . . . . . . . . . . . . . . . . 19
7.16.4
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.16.5
I2C-bus controller . . . . . . . . . . . . . . . . . . . . . . 20
7.16.6
Input filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.16.7
I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 21
7.17
Command decoder . . . . . . . . . . . . . . . . . . . . . 22
7.18
Display controller . . . . . . . . . . . . . . . . . . . . . . 25
8
Internal circuitry. . . . . . . . . . . . . . . . . . . . . . . . 26
9
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 27
10
Static characteristics. . . . . . . . . . . . . . . . . . . . 28
11
Dynamic characteristics . . . . . . . . . . . . . . . . . 30
12
Application information. . . . . . . . . . . . . . . . . . 32
12.1
Cascaded operation . . . . . . . . . . . . . . . . . . . . 32
13
Bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 36
14
Packing information . . . . . . . . . . . . . . . . . . . . 40
15
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 41
16
Revision history . . . . . . . . . . . . . . . . . . . . . . . 42
17
Legal information . . . . . . . . . . . . . . . . . . . . . . 43
17.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 43
17.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
17.3
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 43
17.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 43
18
Contact information . . . . . . . . . . . . . . . . . . . . 43
19
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44



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