PT6579
General Purpose LCD Driver IC
DESCRIPTION
FEATURES
PT6579 is an LCD Driver IC which can drive up to 200
segments. It can be used for frequency display in
microprocessor-controlled radio receiver and in other
display applications. PT6579 supports both 1/3 duty,
and 1/4 duty drive. Pin assignment and application
circuit are optimized for easy PCB layout and cost
saving advantages.
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CMOS technology
Up to 153 segments for 1/3 duty and 200
segments for 1/4 duty drive can be displayed
1/3 Duty - 1/2 Bias and 1/3 Duty - 1/3 Bias drive
techniques
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1/4 Duty - 1/2 Bias and 1/4 Duty - 1/3 Bias drive
techniques
Power saving mode and all segments OFF
function
APPLICATION
Direct display of display data without using a
decoder
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Electronic equipment with LCD display
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RC oscillation circuit
Power supply voltage: 4.5V to 6V
CMOS/TTL compatible logic input pins
LCD drive bias voltage can be provided internally
or externally
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On-Chip voltage detection type reset circuit
Programmable PWM signal output pins
Available in 64 pins LQFP
BLOCK DIAGRAM
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PTC [ PRINCETON TECHNOLOGY CORP ]
