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.

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

APPLICATION
• Electronic equipment with LCD display