PCF8536AT datasheet(53/54 Pages) NXP

53 / 54 page

PCA85276

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Product data sheet

Rev. 3 — 12 November 2018

53 of 54

NXP Semiconductors

PCA85276

Automotive 40 x 4 LCD driver

27. Figures

Fig 1.

Block diagram of PCA85276 . . . . . . . . . . . . . . . . .2

Fig 2.

Pinning diagram for PCA85276ATT (TSSOP56) . .3

Fig 3.

Display RAM bitmap . . . . . . . . . . . . . . . . . . . . . . .9

Fig 4.

Relationship between LCD layout, drive mode,

display RAM filling order, and display data

transmitted over the I2C-bus . . . . . . . . . . . . . . . .10

Fig 5.

RAM banks in static and multiplex driving mode 1:2

Fig 6.

Bank selection . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Fig 7.

Example of the Bank-select command with multiplex

drive mode 1:2 . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Fig 8.

Example of displays suitable for PCA85276 . . . .16

Fig 9.

Typical system configuration . . . . . . . . . . . . . . . .17

Fig 10. Electro-optical characteristic: relative transmission

curve of the liquid. . . . . . . . . . . . . . . . . . . . . . . . .19

Fig 11. Static drive mode waveforms . . . . . . . . . . . . . . . .20

Fig 12. Waveforms for the 1:2 multiplex drive mode with 1⁄2

bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Fig 13. Waveforms for the 1:2 multiplex drive mode with 1⁄3

bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Fig 14. Waveforms for the 1:3 multiplex drive mode with 1⁄3

bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Fig 15. Waveforms for the 1:4 multiplex drive mode with 1⁄3

bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Fig 16. Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Fig 17. Definition of START and STOP conditions. . . . . .26

Fig 18. System configuration . . . . . . . . . . . . . . . . . . . . . .27

Fig 19. Acknowledgement of the I2C-bus . . . . . . . . . . . .27

Fig 20. I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . .29

Fig 21. Format of command byte . . . . . . . . . . . . . . . . . . .29

Fig 22. Device protection circuits . . . . . . . . . . . . . . . . . . .30

Fig 23. Typical IDD with respect to VDD . . . . . . . . . . . . . .33

Fig 24. Driver timing waveforms . . . . . . . . . . . . . . . . . . .35

Fig 25. I2C-bus timing waveforms . . . . . . . . . . . . . . . . . .35

Fig 26. Cascaded PCA85276 configuration. . . . . . . . . . .37

Fig 27. Synchronization of the cascade for the various

PCA85276 drive modes . . . . . . . . . . . . . . . . . . . .38

Fig 28. Package outline SOT364-1 (TSSOP56) of

PCA85276ATT . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Fig 29. Temperature profiles for large and small

components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Fig 30. Footprint information for reflow soldering of

SOT364-1 (TSSOP56) of PCA85276ATT . . . . . .44

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