Description
The HD66764 is a common-driver LSI for systems with color-liquid-crystal dot-matrix graphic displays.  It incorporates 176 LCD drive circuits and power-supply circuits.  An external capacitor is also needed for the liquid crystal display.
This LSI, when used with the HD66763 384-channel segment driver with on-chip RAM, is suitable for color displays of cellular phones to a maximum of 128-by-176 dots.

Features
• LCD drive circuits
   - 176 outputs
• Internal power-supply circuit
   - Step-up circuit: twice to 12 times, positive-polarity inversion
   - Bias setting: 1/2 to 1/13, programmable
   - Contrast adjustment: 128-level programmable volume
   - Dividing resistors: built-in (controls the bias)
   - Setting: serial transfer from the HD66763 segment driver
• Low power consumption
• Power-supply voltage
   - Vcc = 1.8 to 3.6 V
• LCD drive voltage
   - VLCD-VEE = 10 to 44 V (VM standard: ± 5 to ± 2 2 V)
• Package
   - TCP and chip