PCF8536AT datasheet(5/51 Pages) NXP

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NXP Semiconductors

PCF8551

Universal 36 × 4 LCD segment driver

PCF8551BTT

SEG31

48 SEG30

SEG32

47 SEG29

SEG33

46 SEG28

SEG34

45 SEG27

SEG35

44 SEG26

COM0

43 SEG25

COM1

42 SEG24

COM2

41 SEG23

COM3

40 SEG22

VLCD

39 SEG21

VDD

38 SEG20

VSS

37 SEG19

SDIO

36 SEG18

CLK

35 SEG17

SCL

34 SEG16

33 SEG15

PORE

32 SEG14

SEG0

31 SEG13

SEG1

30 SEG12

SEG2

29 SEG11

SEG3

28 SEG10

SEG4

27 SEG9

SEG5

26 SEG8

SEG6

25 SEG7

aaa-012402

For mechanical details, see Figure 29.

Figure 4. Pin configuration of PCF8551BTT (TSSOP48)

6.2 Pin description

Input or input/output pins must always be at a defined level (VSS or VDD) unless otherwise specified.

Symbol

Type

Description

1 to 5,

18 to 48

SEG0 to SEG35

output

LCD segment outputs

6 to 9

COM0 to COM3

output

LCD backplane outputs

VLCD

supply

LCD supply voltage

VDD

supply

supply voltage

VSS

supply

ground supply

Table 3. Pin description

PCF8551

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3.1 — 3 May 2021

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