PCF8578TD NXP Semiconductors, PCF8578TD Datasheet - Page 46

LCD Drivers LCD DRVR DOT MATRIX

PCF8578TD

Manufacturer Part Number
PCF8578TD
Description
LCD Drivers LCD DRVR DOT MATRIX
Manufacturer
NXP Semiconductors
Datasheet

Specifications of PCF8578TD

Number Of Digits
32
Number Of Segments
384
Maximum Clock Frequency
3.3 KHz
Operating Supply Voltage
2.5 V to 6 V
Maximum Power Dissipation
400 mW
Maximum Operating Temperature
+ 150 C
Package / Case
VSO-56
Maximum Supply Current
50 uA
Minimum Operating Temperature
- 65 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PCF8578T/1,112
NXP Semiconductors
19. Contents
1
2
3
4
5
6
7
7.1
7.2
8
8.1
8.2
8.3
8.4
8.5
8.5.1
8.5.2
8.6
8.7
8.8
8.8.1
8.8.2
8.8.3
8.8.4
8.8.5
8.8.6
8.8.7
8.9
8.9.1
8.9.2
8.10
8.11
8.12
9
10
11
12
13
14
14.1
14.2
14.3
14.4
15
16
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 8
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 28
Static characteristics. . . . . . . . . . . . . . . . . . . . 29
Dynamic characteristics . . . . . . . . . . . . . . . . . 30
Application information. . . . . . . . . . . . . . . . . . 32
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 38
Soldering of SMD packages . . . . . . . . . . . . . . 41
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 44
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 7
Display configurations. . . . . . . . . . . . . . . . . . . . 8
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 10
Multiplexed LCD bias generation . . . . . . . . . . 10
LCD drive mode waveforms . . . . . . . . . . . . . . 13
Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Internal clock. . . . . . . . . . . . . . . . . . . . . . . . . . 16
External clock . . . . . . . . . . . . . . . . . . . . . . . . . 16
Timing generator. . . . . . . . . . . . . . . . . . . . . . . 16
Row and column drivers . . . . . . . . . . . . . . . . . 17
Characteristics of the I
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
START and STOP conditions . . . . . . . . . . . . . 17
System configuration . . . . . . . . . . . . . . . . . . . 17
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 18
I
Input filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
I
Display RAM . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Data pointer . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Subaddress counter . . . . . . . . . . . . . . . . . . . . 21
Command decoder . . . . . . . . . . . . . . . . . . . . . 21
RAM access . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Display control . . . . . . . . . . . . . . . . . . . . . . . . 27
Introduction to soldering . . . . . . . . . . . . . . . . . 41
Wave and reflow soldering . . . . . . . . . . . . . . . 41
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 41
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 42
2
2
C-bus controller . . . . . . . . . . . . . . . . . . . . . . 19
C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 19
2
C-bus . . . . . . . . . . . . . 17
LCD row/column driver for dot matrix graphic displays
17
17.1
17.2
17.3
17.4
18
19
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
Legal information . . . . . . . . . . . . . . . . . . . . . . 45
Contact information . . . . . . . . . . . . . . . . . . . . 45
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 45
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Document identifier: PCF8578_6
PCF8578
Date of release: 5 May 2009
All rights reserved.

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