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PT6533
General Purpose LCD Driver
DESCRIPTION
PT6533 is a general purpose LCD Driver IC utilizing
CMOS technology specially designed with character
and graphical displays. It provides1/4 duty, 1/8 duty
and can drive up to a maximum of 232 segments
drivers. Housed in a 44-pin LQFP package, PT6533
can directly display the display data without any
decoder intervention, thereby providing a high level of
generality. Built-in display contrast adjustment circuit,
independent LCD drive block power supply and serial
data control of the power saving mode based on the
backup function as well as all segments forced OFF
functions are incorporated into a single chip having the
highest performance and reliability. Pin assignments
and application circuits are optimized for easy PCB
layout and cost saving benefits.
FEATURES
• CMOS technology
• Wide variety of bias drive techniques:
- 1/8 duty, 1/4 bias drive technique: (232
segments max.)
- 1/4 duty, 1/4 bias drive technique: (132
segments max.)
• RC oscillation circuit
• Direct display of display data without any decoder
intervention
• Serial data control of the power saving mode
based backup function
• Available in C.O.B. or 44-pin LQFP packages
APPLICATIONS
• Car Audio display
• Consumer display
• Household electronic application
BLOCK DIAGRAM
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PT6533
APPLICATION CIRCUITS
1/8 DUTY, 1/4 BIAS DRIVE TECHNIQUE (FOR NORMAL PANEL USE)
V1.1
2
March 2012
PT6533
ORDER INFORMATION
Valid Part Number
PT6533-LQ
PT6533-H
Package Type
44 Pins, LQFP
C.O.B.
Top Code
PT6533-LQ
-
PIN CONFIGURATION
PIN DESCRIPTION
Pin Name
SG1 ~ SG29
COM8/SG30 ~
COM5/SG33
COM1 ~ COM4
VLCD
VSS
OSC
VDD
CE
CLK
DI
V1.1
I/O
O
Description
Segment driver output pin
Pin No.
1 ~ 29
O
Common direct outputs/segment direct outputs
30 ~ 33
O
I/O
I
I
I
Common driver output pin
LCD driver block power supply
Ground pin
Oscillator input/output pin
Logic power supply
Chip enable input pin
Clock input pin
Data input pin
37 ~ 34
38
39
40
41
42
43
44
3
March 2012