EHD66764 Datasheet (Hitachi) - 176-channel Common Driver for Color Displays

EHD66764, 176-channel Common Driver for Color Displays

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

EHD66764 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)  Set