PCF8576CT datasheet(8/56 Pages) NXP

8 / 56 page

PCF8576C_9

Product data sheet

Rev. 09 — 9 July 2009

8 of 56

NXP Semiconductors

PCF8576C

Universal LCD driver for low multiplex rates

6.2 Pin description

[1]

The substrate (rear side of the die) is wired to VDD but should not be electrically connected.

Table 3.

Pin description

Symbol

Description

PCF8576CH

PCF8576CT

PCF8576CTT

PCF8576CU

SDA

11I2C-bus serial data input and output

SCL

I2C-bus serial clock input

SYNC

cascade synchronization input and output

CLK

external clock input/output

VDD

5[1]

supply voltage

OSC

internal oscillator enable input

A0 to A2

16 to 18

7 to 9

subaddress inputs

SA0

I2C-bus address input; bit 0

VSS

logic ground

VLCD

LCD supply voltage

BP0, BP2,

BP1, BP3

25 to 28

13 to 16

LCD backplane outputs

S0 to S39

2 to 7, 29 to 32,

34 to 47, 49 to 64

17 to 56

LCD segment outputs

n.c.

1, 8, 9, 22 to 24, 33, 48 -

not connected

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