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NJU6533

1/3, 1/4 Duty LCD Driver

Japan Radio Corporation  

1/3, 1/4 Duty LCD Driver

NJU6533

PRELIMINARY

! 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.

Controlled by MPU, NJU6533 can be used in many LCD

applications

! PACKAGE OUTLINE

NJU6533KQ1

! FEATURES

# LCD driving circuit

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

# Programmable Duty Ratio

1/3 duty ratio

:Driving max. 96 segments

1/4 duty ratio

:Driving max. 128 segments

# Programmable Bias Ratio :1/2, 1/3 bias ratio

# Serial Data Transfer

:Shift clock max. 2MHz

# Built-in Oscillator

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

# Display OFF

:INHb pin

# Operating Voltage

:3V / 5.0V

# C-MOS Technology

:P-Sub

# Package Outline

:QFN48

! BLOCK DIAGRAM

COM1 COM4 SEG1 SEG8 SEG9 SEG16 SEG17 SEG24 SEG25

SEG32/P4

VDD

VLCD

V1

V2

VSS

INHb

COM

Drivers

Segment Drivers /General Purpose Output Ports

Data Latch Circuit

OSC1

OSC2

CSb

SCK

SI

RSTb

Oscillator

Decoder

Display Data Register

Command Register

Power ON Reset Circuit

Ver.2004-03-05

-1-

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