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