PCA85134 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 2 — 6 May 2014 52 of 53
NXP Semiconductors
PCA85134
Automotive 60 x 4 LCD segment driver for low multiplex rates
27. Figures
Fig 1. Block diagram of PCA85134 . . . . . . . . . . . . . . . . .3
Fig 2. Pin configuration for SOT315-1 (PCA85134H) . . .4
Fig 3. Example of displays suitable for PCA85134 . . . . .6
Fig 4. Typical system configuration . . . . . . . . . . . . . . . . .7
Fig 5. Electro-optical characteristic: relative
transmission curve of the liquid . . . . . . . . . . . . . .10
Fig 6. Static drive mode waveforms. . . . . . . . . . . . . . . .11
Fig 7. Waveforms for the 1:2 multiplex drive mode
with
1
2
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Fig 8. Waveforms for the 1:2 multiplex drive mode
with
1
3
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Fig 9. Waveforms for the 1:3 multiplex drive mode
with
1
3
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Fig 10. Waveforms for the 1:4 multiplex drive mode
with
1
3
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Fig 11. Display RAM bit map . . . . . . . . . . . . . . . . . . . . . .17
Fig 12. Relationship between LCD layout, drive mode,
display RAM filling order and display data
transmitted over the I
2
C-bus . . . . . . . . . . . . . . . .18
Fig 13. Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Fig 14. Definition of START and STOP conditions. . . . . .25
Fig 15. System configuration . . . . . . . . . . . . . . . . . . . . . .26
Fig 16. Acknowledgement of the I
2
C-bus . . . . . . . . . . . .26
Fig 17. I
2
C-bus protocol. . . . . . . . . . . . . . . . . . . . . . . . . .28
Fig 18. Control byte format . . . . . . . . . . . . . . . . . . . . . . .28
Fig 19. Device protection diagram . . . . . . . . . . . . . . . . . .29
Fig 20. Driver timing waveforms . . . . . . . . . . . . . . . . . . .35
Fig 21. I
2
C-bus timing waveforms . . . . . . . . . . . . . . . . . .36
Fig 22. Cascaded PCA85134 configuration. . . . . . . . . . .38
Fig 23. Synchronization of the cascade for various
PCA85134 drive modes. . . . . . . . . . . . . . . . . . . .39
Fig 24. Package outline SOT315-1 (LQFP80). . . . . . . . .41
Fig 25. Temperature profiles for large and small
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
NXP Semiconductors
PCA85134
Automotive 60 x 4 LCD segment driver for low multiplex rates
© NXP Semiconductors N.V. 2014. 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: 6 May 2014
Document identifier: PCA85134
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
28. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
3.1 Ordering options. . . . . . . . . . . . . . . . . . . . . . . . 2
4 Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Pinning information. . . . . . . . . . . . . . . . . . . . . . 4
6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
7 Functional description . . . . . . . . . . . . . . . . . . . 6
7.1 Power-On Reset (POR) . . . . . . . . . . . . . . . . . . 7
7.2 LCD bias generator . . . . . . . . . . . . . . . . . . . . . 7
7.3 LCD voltage selector . . . . . . . . . . . . . . . . . . . . 8
7.3.1 Electro-optical performance . . . . . . . . . . . . . . . 9
7.4 LCD drive mode waveforms . . . . . . . . . . . . . . 11
7.4.1 Static drive mode . . . . . . . . . . . . . . . . . . . . . . 11
7.4.2 1:2 Multiplex drive mode. . . . . . . . . . . . . . . . . 12
7.4.3 1:3 Multiplex drive mode. . . . . . . . . . . . . . . . . 14
7.4.4 1:4 Multiplex drive mode. . . . . . . . . . . . . . . . . 15
7.5 Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.5.1 Internal clock . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.5.2 External clock . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.6 Timing and frame frequency. . . . . . . . . . . . . . 16
7.7 Display register. . . . . . . . . . . . . . . . . . . . . . . . 16
7.8 Segment outputs. . . . . . . . . . . . . . . . . . . . . . . 16
7.9 Backplane outputs . . . . . . . . . . . . . . . . . . . . . 17
7.10 Display RAM. . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.10.1 Data pointer . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.10.2 Subaddress counter . . . . . . . . . . . . . . . . . . . . 19
7.10.3 RAM writing in 1:3 multiplex drive mode. . . . . 20
7.10.4 Bank selector . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.10.4.1 Output bank selector . . . . . . . . . . . . . . . . . . . 21
7.10.4.2 Input bank selector . . . . . . . . . . . . . . . . . . . . . 21
7.11 Blinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.12 Command decoder. . . . . . . . . . . . . . . . . . . . . 22
7.13 Display controller . . . . . . . . . . . . . . . . . . . . . . 24
8 Characteristics of the I
2
C-bus . . . . . . . . . . . . 25
8.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1.1 START and STOP conditions . . . . . . . . . . . . . 25
8.2 System configuration . . . . . . . . . . . . . . . . . . . 25
8.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.4 I
2
C-bus controller . . . . . . . . . . . . . . . . . . . . . . 27
8.5 Input filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.6 I
2
C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 27
9 Internal circuitry. . . . . . . . . . . . . . . . . . . . . . . . 29
10 Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
11 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 31
12 Static characteristics . . . . . . . . . . . . . . . . . . . 32
13 Dynamic characteristics. . . . . . . . . . . . . . . . . 34
14 Application information . . . . . . . . . . . . . . . . . 37
14.1 Cascaded operation. . . . . . . . . . . . . . . . . . . . 37
15 Test information . . . . . . . . . . . . . . . . . . . . . . . 40
15.1 Quality information. . . . . . . . . . . . . . . . . . . . . 40
16 Package outline. . . . . . . . . . . . . . . . . . . . . . . . 41
17 Handling information . . . . . . . . . . . . . . . . . . . 42
18 Packing information . . . . . . . . . . . . . . . . . . . . 42
19 Soldering of SMD packages. . . . . . . . . . . . . . 42
19.1 Introduction to soldering. . . . . . . . . . . . . . . . . 42
19.2 Wave and reflow soldering. . . . . . . . . . . . . . . 42
19.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 43
19.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 43
20 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
20.1 LCD segment driver selection . . . . . . . . . . . . 45
21 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 47
22 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
23 Revision history . . . . . . . . . . . . . . . . . . . . . . . 48
24 Legal information . . . . . . . . . . . . . . . . . . . . . . 49
24.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 49
24.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
24.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 49
24.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 50
25 Contact information . . . . . . . . . . . . . . . . . . . . 50
26 Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
27 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
28 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

PCA85134H/Q900/1,1

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
LCD Drivers 60 X 4 LCD DRIVER FOR MULTIPLEX RATES
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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