Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
LCD Driver IC DESCRIPTION
PT6520
PT6520 is a...
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
LCD Driver IC DESCRIPTION
PT6520
PT6520 is a dot matrix LCD driver IC. The bit addressable display data which is sent from a microcomputer is stored in a build-in display data RAM and generates the LCD signal. The PT6520 incorporates innovative circuit design strategies to assure very low current dissipation and a wide range of operating
voltages. The PT6520 permits the user to implement high-performance handy systems operating from a miniature battery.
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FEATURES
CMOS Technology 8-bit data interface 61 Segment output 16 Common output Duty cycle – PT6520 – 1/16 ~ 1/32 2560 bits built-in display data RAM Master/Slave operation Low power: 30µW LCD
voltage: 3.5 ~ 13V Power supply: 2.4 ~ 7V Available in 100 pins, QFP Package
APPLICATION
Peripheral Device
PT6520 v1.1
-1-
July, 2003
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
LCD Driver IC
System Block Diagram
PT6520
COM0~COM15 20 CHAR x 4 LINES
COM16~COM31
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SEG0~SEG60
SEG0~SEG60
FR VDD PT6520 M/S Data Ck PT6520 M/S GND
Control CPU (68xx, 80xx)
PT6520 v1.1
-2-
July, 2003
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
LCD Driver IC
PT6520
BLOCK DIAGRAM
FR (OSC2) CL
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Display Timing Generator
Command Decoder
Common Counter
Display Start Line Register
Line Counter
V2, V1, V5
Line Address Decoder
LCD D...