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NJU6533

PRELIMINARY

1/3, 1/4 Duty LCD Driver

!

GENERAL DESCRIPTION

NJU6533

is a 1/3 or 1/4 duty segment type LCD driver.

It incorporates 4 common driver circuits and 32 segment driver

circuits.

NJU6533

can drive maximum 96 segments in 1/3 duty

ratio and maximum 128 segments in 1/4 duty ratio.

!

PACKAGE OUTLINE

Controlled by MPU,

NJU6533

can be used in many LCD

applications

NJU6533KQ1

!

FEATURES

#

LCD driving circuit

#

Programmable Duty Ratio

1/3 duty ratio

1/4 duty ratio

#

Programmable Bias Ratio

#

Serial Data Transfer

#

Built-in Oscillator

#

Display OFF

#

Operating Voltage

#

C-MOS Technology

#

Package Outline

:Max. 32outputs (4 outputs as for general purpose ports)

:Driving max. 96 segments

:Driving max. 128 segments

:1/2, 1/3 bias ratio

:Shift clock max. 2MHz

:

CR oscillation with external resistor, or external oscillation signal input.

:INHb pin

:3V / 5.0V

:

P-Sub

:QFN48

!

BLOCK DIAGRAM

COM1

V

DD

V

LCD

V

1

V

2

V

SS

INHb

OSC1

COM

Drivers

COM4 SEG1

SEG8

SEG9

SEG16 SEG17

SEG24

SEG25

SEG32/P4

Segment Drivers /General Purpose Output Ports

Data Latch Circuit

Oscillator

OSC2

CSb

SCK

SI

RSTb

Display Data Register

Decoder

Command Register

Power ON Reset Circuit

Ver.2004-03-05

-1-

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