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EHD66764 - 176-channel Common Driver for Color Displays

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.

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 standa.

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HD66764 176-channel Common Driver for Color Displays Rev.1.0 September, 2001 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.
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