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ML9090-02 - LCD Driver with Key Scanner and RAM

General Description

The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan function.

They are best suited for car audio displays.

Since 1-bit data of the display RAM corresponds to the light-on or light-off of 1-dot of the LCD panel (a bit map system), a flexible display is possible.

Key Features

  • Logic voltage: VDD 2.7 to 5.5 V.
  • LCD drive voltage: VBI 6 to 16 V (positive voltage).
  • 80 segment outputs,10 common outputs for ML9090-01 and 18 common outputs for ML909002.
  • Built-in bit-mapped RAM (ML9090-01: 80.
  • 10 = 800 bits, ML9090-02: 80.
  • 18 = 1440 bits).
  • 4-pin serial interface with CPU: CS, CP, DI/O, KREQ.
  • Built-in LCD drive bias resistors.
  • Built-in voltage doubler and tripler circuits.
  • Built-in 5.
  • 5 key.

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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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PEDL9090-02 ¡ Semiconductor ML9090-01,-02 LCD Driver with Key Scanner and RAM This version: Jan. 2000 Previous version: Nov. 1998 el Pr y ar in im GENERAL DESCRIPTION The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan function. They are best suited for car audio displays. Since 1-bit data of the display RAM corresponds to the light-on or light-off of 1-dot of the LCD panel (a bit map system), a flexible display is possible. A single chip can implement a graphic display system of a maximum of 80 ¥ 16 dots (80 ¥ 8 dots for the ML9090-01, 80 ¥ 16 dots for the ML9090-02) and an arbitrator display system of 80 ¥ 2 dots. Since containing voltage multipliers, the ML9090-01 and ML9090-02 require no power supply circuit to drive the LCD.