PCF8576CH NXP Semiconductors, PCF8576CH Datasheet - Page 56

PCF8576CH

Manufacturer Part Number
PCF8576CH
Description
Manufacturer
NXP Semiconductors
Datasheet

Specifications of PCF8576CH

Operating Supply Voltage (typ)
2.5/3.3/5V
Number Of Digits
20
Number Of Segments
160
Package Type
LQFP
Pin Count
64
Mounting
Surface Mount
Power Dissipation
400mW
Frequency (max)
315KHz
Operating Supply Voltage (min)
2V
Operating Supply Voltage (max)
6V
Lead Free Status / Rohs Status
Compliant

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NXP Semiconductors
23. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.5
7.5.1
7.5.2
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.14.1
7.14.2
7.15
8
8.1
8.1.1
8.1.1.1
8.1.2
8.1.3
8.1.4
8.1.5
8.2
8.3
8.3.1
8.3.2
8.3.3
8.3.4
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 9
Basic architecture . . . . . . . . . . . . . . . . . . . . . . 23
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power-on-reset . . . . . . . . . . . . . . . . . . . . . . . . . 9
LCD bias generator. . . . . . . . . . . . . . . . . . . . . 10
LCD voltage selector . . . . . . . . . . . . . . . . . . . 10
LCD drive mode waveforms . . . . . . . . . . . . . . 12
Static drive mode . . . . . . . . . . . . . . . . . . . . . . 12
1:2 Multiplex drive mode . . . . . . . . . . . . . . . . . 13
1:3 Multiplex drive mode . . . . . . . . . . . . . . . . . 15
1:4 multiplex drive mode . . . . . . . . . . . . . . . . . 16
Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Internal clock. . . . . . . . . . . . . . . . . . . . . . . . . . 17
External clock . . . . . . . . . . . . . . . . . . . . . . . . . 17
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Display register . . . . . . . . . . . . . . . . . . . . . . . . 18
Shift register . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Segment outputs. . . . . . . . . . . . . . . . . . . . . . . 18
Backplane outputs . . . . . . . . . . . . . . . . . . . . . 18
Display RAM . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Data pointer . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Sub-address counter . . . . . . . . . . . . . . . . . . . 21
Bank selector . . . . . . . . . . . . . . . . . . . . . . . . . 21
Output bank selector. . . . . . . . . . . . . . . . . . . . 21
Input bank selector . . . . . . . . . . . . . . . . . . . . . 22
Blinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Characteristics of the I
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
START and STOP conditions . . . . . . . . . . . . . 23
System configuration . . . . . . . . . . . . . . . . . . . 23
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 24
PCF8576C I
Input filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
I
Command decoder . . . . . . . . . . . . . . . . . . . . . 26
Mode set command . . . . . . . . . . . . . . . . . . . . 27
Load data pointer command . . . . . . . . . . . . . . 27
Device select command . . . . . . . . . . . . . . . . . 27
Bank select command . . . . . . . . . . . . . . . . . . 28
2
C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 25
2
C-bus controller . . . . . . . . . . . . . 25
2
C-bus . . . . . . . . . . . . . 23
8.3.5
8.4
9
10
11
11.1
11.2
12
13
13.1
14
15
16
17
17.1
17.2
18
18.1
18.2
18.3
18.4
19
20
21
21.1
21.2
21.3
21.4
22
23
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2009.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Universal LCD driver for low multiplex rates
Internal circuitry . . . . . . . . . . . . . . . . . . . . . . . 28
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 29
Static characteristics . . . . . . . . . . . . . . . . . . . 30
Dynamic characteristics . . . . . . . . . . . . . . . . . 33
Application information . . . . . . . . . . . . . . . . . 35
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 39
Bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 42
Handling information . . . . . . . . . . . . . . . . . . . 46
Packing information . . . . . . . . . . . . . . . . . . . . 46
Soldering of SMD packages . . . . . . . . . . . . . . 50
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 53
Revision history . . . . . . . . . . . . . . . . . . . . . . . 54
Legal information . . . . . . . . . . . . . . . . . . . . . . 55
Contact information . . . . . . . . . . . . . . . . . . . . 55
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Blink command. . . . . . . . . . . . . . . . . . . . . . . . 28
Display controller . . . . . . . . . . . . . . . . . . . . . . 28
Typical supply current characteristics. . . . . . . 31
Typical LCD output characteristics . . . . . . . . . 32
Cascaded operation . . . . . . . . . . . . . . . . . . . . 35
Tray information . . . . . . . . . . . . . . . . . . . . . . . 46
Film frame carrier information . . . . . . . . . . . . 49
Introduction to soldering. . . . . . . . . . . . . . . . . 50
Wave and reflow soldering . . . . . . . . . . . . . . . 50
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 50
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 51
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 55
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 55
PCF8576C
Document identifier: PCF8576C_9
Date of release: 9 July 2009
All rights reserved.

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