PCF8536AT datasheet(53/54 Pages) NXP

53 / 54 page

PCA8576F

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Product data sheet

Rev. 3 — 3 December 2014

53 of 54

NXP Semiconductors

PCA8576F

Automotive 40 × 4 LCD driver

25. Figures

Fig 1.

Block diagram of PCA8576F . . . . . . . . . . . . . . . . .2

Fig 2.

Pinning diagram for PCA8576FUG (bare die) . . . .3

Fig 3.

Format of command byte . . . . . . . . . . . . . . . . . . . .5

Fig 4.

Display RAM bit map . . . . . . . . . . . . . . . . . . . . . . .9

Fig 5.

Relationship between LCD layout, drive mode,

display RAM filling order and display data

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

Fig 6.

Display RAM filling order in static drive mode . . . 11

Fig 7.

Display RAM filling order in 1:2 multiplex drive

mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Fig 8.

Display RAM filling order in 1:4 multiplex drive

mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Fig 9.

RAM banks in static and multiplex driving

mode 1:2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Fig 10. Bank selection . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Fig 11. Example of the Bank-select command with

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

Fig 12. Example of displays suitable for PCA8576F . . . .17

Fig 13. Typical system configuration . . . . . . . . . . . . . . . .17

Fig 14. Electro-optical characteristic: relative

transmission curve of the liquid . . . . . . . . . . . . . .20

Fig 15. Static drive mode waveforms . . . . . . . . . . . . . . . .21

Fig 16. Waveforms for the 1:2 multiplex drive mode

with 1⁄2 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Fig 17. Waveforms for the 1:2 multiplex drive mode

with 1⁄3 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Fig 18. Waveforms for the 1:3 multiplex drive mode

with 1⁄3 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Fig 19. Waveforms for the 1:4 multiplex drive mode

with 1⁄3 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Fig 20. Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Fig 21. Definition of START and STOP conditions. . . . . .27

Fig 22. System configuration . . . . . . . . . . . . . . . . . . . . . .28

Fig 23. Acknowledgement of the I2C-bus . . . . . . . . . . . .28

Fig 24. I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . .30

Fig 25. Device protection circuits . . . . . . . . . . . . . . . . . . .31

Fig 26. Typical IDD with respect to VDD . . . . . . . . . . . . . .35

Fig 27. Driver timing waveforms . . . . . . . . . . . . . . . . . . .37

Fig 28. I2C-bus timing waveforms . . . . . . . . . . . . . . . . . .37

Fig 29. Cascaded PCA8576F configuration . . . . . . . . . .39

Fig 30. Synchronization of the cascade for the various

PCA8576F drive modes. . . . . . . . . . . . . . . . . . . .40

Fig 31. Bare die outline PCA8576FUG (for dimensions

see Table 24) . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Fig 32. Tray details . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Fig 33. Tray alignment . . . . . . . . . . . . . . . . . . . . . . . . . . .45

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