Description:
ST7065C is a segment/common driver for dot matrix type LCD display. It features 40 channels with 20 X 2 bits bi-directional shift registers, data latches, LCD drivers and logic control circuits. It is fabricated by high voltage CMOS process with low current consumption.

FEATUREs:
• Display driving bias : static to 1/5
• Power supply for logic : 2.7V ~ 5.5V
• Power supply for LCD voltage (VDD~VEE) : 3V ~ 11V
• 64 Pin QFP package and bare chip available

Functions:
• Dot matrix LCD driver with two 20 channel outputs
• Selectable function to use common/segment drivers simultaneously
• Bias voltage (V1 ~ V6)
• Input/output signals
• Input : Serial display data and control pulse from controller IC
• Output : 20 X 2 channels waveform for LCD driving