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PCA8551ATT/AJ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57
PCA8551 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 2 — 24 March 2015 55 of 57
NXP Semiconductors
PCA8551
Automotive 36 × 4 LCD segment driver
30. Figures
Fig 1. Block diagram of PCA8551A . . . . . . . . . . . . . . . . .3
Fig 2. Block diagram of PCA8551B . . . . . . . . . . . . . . . . .3
Fig 3. Pin configuration of PCA8551ATT (TSSOP48) . . .4
Fig 4. Pin configuration of PCA8551BTT (TSSOP48) . . .5
Fig 5. Address counter incrementing . . . . . . . . . . . . . . . .8
Fig 6. Reset pulse timing . . . . . . . . . . . . . . . . . . . . . . . .11
Fig 7. Display RAM organization bitmap for MUX 1:4 . .14
Fig 8. Example of displays suitable for PCA8551 . . . . .15
Fig 9. Typical system configuration using I
2
C-bus,
internal power-on reset disabled . . . . . . . . . . . . .16
Fig 10. Typical system configuration using SPI-bus,
internal power-on reset enabled . . . . . . . . . . . . .16
Fig 11. Electro-optical characteristic: relative
transmission curve of the liquid . . . . . . . . . . . . . .19
Fig 12. Static drive mode waveforms. . . . . . . . . . . . . . . .20
Fig 13. Waveforms for the 1:2 multiplex drive mode
with
1
⁄
2
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Fig 14. Waveforms for the 1:2 multiplex drive mode
with
1
⁄
3
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Fig 15. Waveforms for the 1:3 multiplex drive mode
with
1
⁄
3
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Fig 16. Waveforms for the 1:4 multiplex drive mode
with
1
⁄
3
bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Fig 17. Recommended power-up and power-off
sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Fig 18. I
2
C read and write protocol . . . . . . . . . . . . . . . . .27
Fig 19. I
2
C read and write signaling. . . . . . . . . . . . . . . . .27
Fig 20. Data transfer overview. . . . . . . . . . . . . . . . . . . . .30
Fig 21. SPI-bus write example: writing two data bytes
to registers 00h and 01h . . . . . . . . . . . . . . . . . . .31
Fig 22. SPI-bus read example: reading two data bytes
from registers 04h and 05h . . . . . . . . . . . . . . . . .31
Fig 23. Device protection diagram . . . . . . . . . . . . . . . . . .32
Fig 24. Typical I
DD
and I
DD(LCD)
in power-down mode
as function of temperature. . . . . . . . . . . . . . . . . .35
Fig 25. Typical I
DD(LCD)
as function of display load . . . . .35
Fig 26. Typical I
DD(LCD)
as function of f
fr
. . . . . . . . . . . . . .36
Fig 27. Relation of frame frequency (f
fr
), clock frequency
(f
clk
) and multiplex-rate (n
MUX
) . . . . . . . . . . . . . . .37
Fig 28. I
2
C-bus timing waveforms . . . . . . . . . . . . . . . . . .39
Fig 29. SPI-bus timing waveforms . . . . . . . . . . . . . . . . .40
Fig 30. Package outline SOT362-1 (TSSOP48) of
PCA8551 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Fig 31. Temperature profiles for large and small
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Fig 32. Footprint information for reflow soldering of
SOT362-1 (TSSOP48) of PCA8551 . . . . . . . . . .46
PCA8551 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 2 — 24 March 2015 56 of 57
continued >>
NXP Semiconductors
PCA8551
Automotive 36 × 4 LCD segment driver
31. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4.1 Ordering options. . . . . . . . . . . . . . . . . . . . . . . . 2
5 Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7 Pinning information. . . . . . . . . . . . . . . . . . . . . . 4
7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6
8 Functional description . . . . . . . . . . . . . . . . . . . 7
8.1 Registers of the PCA8551 . . . . . . . . . . . . . . . . 7
8.2 Command registers of the PCA8551 . . . . . . . . 8
8.2.1 Command: Device_ctrl . . . . . . . . . . . . . . . . . . . 8
8.2.1.1 Internal oscillator and clock output . . . . . . . . . . 8
8.2.2 Command: Display_ctrl_1. . . . . . . . . . . . . . . . . 9
8.2.2.1 Enhanced power drive mode . . . . . . . . . . . . . . 9
8.2.2.2 Multiplex drive mode. . . . . . . . . . . . . . . . . . . . . 9
8.2.3 Command: Display_ctrl_2. . . . . . . . . . . . . . . . 10
8.2.3.1 Blinking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.2.3.2 Line inversion (driving scheme A) and frame
inversion (driving scheme B) . . . . . . . . . . . . . 10
8.3 Starting and resetting the PCA8551 . . . . . . . . 10
8.3.1 Power-down mode . . . . . . . . . . . . . . . . . . . . . 11
8.3.2 Power-On Reset (POR) . . . . . . . . . . . . . . . . . 11
8.3.3 Hardware reset: RST
pin (only PCA8551A) . . 11
8.3.4 Command: Software_reset. . . . . . . . . . . . . . . 12
8.4 Display data register mapping . . . . . . . . . . . . 12
9 Possible display configurations. . . . . . . . . . . 15
9.1 LCD bias generator . . . . . . . . . . . . . . . . . . . . 17
9.2 LCD voltage selector . . . . . . . . . . . . . . . . . . . 17
9.2.1 Electro-optical performance . . . . . . . . . . . . . . 18
9.2.2 LCD drive mode waveforms . . . . . . . . . . . . . . 20
9.2.2.1 Static drive mode . . . . . . . . . . . . . . . . . . . . . . 20
9.2.2.2 1:2 Multiplex drive mode. . . . . . . . . . . . . . . . . 21
9.2.2.3 1:3 Multiplex drive mode. . . . . . . . . . . . . . . . . 23
9.2.2.4 1:4 Multiplex drive mode. . . . . . . . . . . . . . . . . 24
9.3 Backplane and segment outputs . . . . . . . . . . 25
9.3.1 Backplane outputs . . . . . . . . . . . . . . . . . . . . . 25
9.3.2 Segment outputs. . . . . . . . . . . . . . . . . . . . . . . 25
10 Power Sequencing. . . . . . . . . . . . . . . . . . . . . . 26
10.1 Power-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.2 Power-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.3 Power sequences . . . . . . . . . . . . . . . . . . . . . . 26
11 Bus interfaces . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.1 I
2
C-bus interface of the PCA8551A . . . . . . . . 27
11.1.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.1.2 START and STOP conditions. . . . . . . . . . . . . 28
11.1.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 28
11.1.4 I
2
C interface protocol . . . . . . . . . . . . . . . . . . . 28
11.1.4.1 Write protocol. . . . . . . . . . . . . . . . . . . . . . . . . 28
11.1.4.2 Read protocol. . . . . . . . . . . . . . . . . . . . . . . . . 29
11.1.4.3 I
2
C-bus slave address . . . . . . . . . . . . . . . . . . 29
11.2 SPI-bus interface of the PCA8551B. . . . . . . . 30
11.2.1 Data transmission . . . . . . . . . . . . . . . . . . . . . 30
11.2.1.1 Write protocol. . . . . . . . . . . . . . . . . . . . . . . . . 30
11.2.1.2 Read protocol. . . . . . . . . . . . . . . . . . . . . . . . . 31
11.3 EMC detection . . . . . . . . . . . . . . . . . . . . . . . . 32
12 Internal circuitry . . . . . . . . . . . . . . . . . . . . . . . 32
13 Safety notes. . . . . . . . . . . . . . . . . . . . . . . . . . . 32
14 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 33
15 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 34
16 Application information . . . . . . . . . . . . . . . . . 40
16.1 Power-on with a slowly starting power supply 40
16.2 I
2
C acknowledge after power-on . . . . . . . . . . 40
16.3 Resistors on I/O pins . . . . . . . . . . . . . . . . . . . 40
17 Test information . . . . . . . . . . . . . . . . . . . . . . . 41
17.1 Quality information. . . . . . . . . . . . . . . . . . . . . 41
18 Package outline. . . . . . . . . . . . . . . . . . . . . . . . 42
19 Handling information . . . . . . . . . . . . . . . . . . . 43
20 Packing information . . . . . . . . . . . . . . . . . . . . 43
20.1 Tape and reel information . . . . . . . . . . . . . . . 43
21 Soldering of SMD packages. . . . . . . . . . . . . . 43
21.1 Introduction to soldering. . . . . . . . . . . . . . . . . 43
21.2 Wave and reflow soldering. . . . . . . . . . . . . . . 43
21.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 44
21.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 44
22 Footprint information . . . . . . . . . . . . . . . . . . . 46
23 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
23.1 LCD segment driver selection . . . . . . . . . . . . 47
24 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 49
25 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
26 Revision history . . . . . . . . . . . . . . . . . . . . . . . 51
27 Legal information . . . . . . . . . . . . . . . . . . . . . . 52
27.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 52
27.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
27.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 52
27.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 53
28 Contact information . . . . . . . . . . . . . . . . . . . . 53
29 Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
NXP Semiconductors
PCA8551
Automotive 36 × 4 LCD segment driver
© NXP Semiconductors N.V. 2015. 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: 24 March 2015
Document identifier: PCA8551
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
30 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
31 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57

PCA8551ATT/AJ

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Buy PCA8551ATT/AJ
Manufacturer:
NXP Semiconductors
Description:
Flip Flops Automotive 36X4 LCD segment driver
Lifecycle:
New from this manufacturer.
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