PCF8577C View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

PCF8577C

LCD direct/duplex driver with I2C-bus interface

Philips Electronics 

Philips Semiconductors

LCD direct/duplex driver with

I2C-bus interface

Product specification

PCF8577C

CONTROL REGISTER

DISPLAY SEGMENT BYTE VECTOR

CONTROL

(SBV)

msb

lsb

V5 V4 V3 V2 V1 V0

(1) (1)

segment byte

register

address

comparison

SEGMENT BYTE REGISTERS

msb

0

2

4

6

lsb

BANK 'A'

A2 A1 A0

device

subaddress

0 BANK 'A'

1 BANK 'B'

BANK

0 DIRECT DRIVE

1 DUPLEX DRIVE

DISPLAY

MODE

1

3

5

7

(1) Bits ignored in duplex mode.

BANK 'B'

MGA733

Fig.3 PCF8577C register organization.

VDD

VSS

VDD

VSS

VDD VSS

0

(VDD VSS )

OFF

ON

BP1

Segment x

(Sx)

BP1 Sx

1

f LCD

MGA737

Von(rms) = VDD − VSS; Voff(rms) = 0.

Fig.4 Direct drive mode display output waveforms.

1998 Jul 30

6

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