PT6579_10 Datasheet, PDF (1/6 Pages) Princeton Technology Corp – General Purpose LCD Driver IC

DESCRIPTION
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.
APPLICATION
• Electronic equipment with LCD display
BLOCK DIAGRAM
PT6579
General Purpose LCD Driver IC
FEATURES
• 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
• 1/4 Duty - 1/2 Bias and 1/4 Duty - 1/3 Bias drive
techniques
• Power saving mode and all segments OFF
function
• Direct display of display data without using a
decoder
• 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
• On-Chip voltage detection type reset circuit
• Programmable PWM signal output pins
• Available in 64 pins LQFP
Tel: [phone]‧Fax: [phone]‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan