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HD66704 - Liquid Crystal Display Controller/Driver

General Description

The HD66704 LCD controller and driver LSI is used to display alphanumeric characters, katakana, hiragana, a variety of symbols, and seven-segment numerals.

It can be connected to a high-performance microcomputer via a high-speed clock-synchronized serial connection or on a four-bit bus.

Key Features

  • Two 16-character lines (5-by-8-dot fonts) and 160 segments.
  • 320 segments with blinking control (at 1/4-duty drive).
  • Wide range of operating voltages  VCC = 1.8 to 5.5 V (LCD drive voltage: VLCD = 3.0 to 6.5 V).
  • Double or triple step-up circuit for LCD drive voltage.
  • 1/2- to 1/5-bias bleeder-resistors and voltage followers for LCD-drive power supply.
  • 25-level electronic potentiometer.
  • High-speed clock-synchronized serial interface (.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com HD66704 (Graphics LCD Controller/Driver with Two 16-Character Lines and 160 Segments) ADE-207-331(Z) Rev 2.0 June 2001 Description The HD66704 LCD controller and driver LSI is used to display alphanumeric characters, katakana, hiragana, a variety of symbols, and seven-segment numerals. It can be connected to a high-performance microcomputer via a high-speed clock-synchronized serial connection or on a four-bit bus. The HD66704 is capable of displaying two 16-character lines and 160 segments or one 16-character line and 240 segments in its character mode. The HD66704 has 432 built-in fonts for character display and supports double-height display. In its segment mode, it can drive up to 320 segments (at a duty cycle of 1/4).