FEDL9445-02 Datasheet, PDF(1/84 Page) List of Unclassifed Manufacturers – 180-Channel LCD Driver with Built-in RAM for LCD Dot Matrix Displays

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FEDL9445-02 Datasheet, PDF (1/84 Pages) List of Unclassifed Manufacturers – 180-Channel LCD Driver with Built-in RAM for LCD Dot Matrix Displays

ML9445

180-Channel LCD Driver with Built-in RAM for LCD Dot Matrix Displays

FEDL9445-02

Issue Date: Dec. 20, 2013

GENERAL DESCRIPTION

The ML9445 is an LSI for dot matrix graphic LCD devices carrying out bit map display. This LSI can drive a dot

matrix graphic LCD display panel under the control of an 8-bit microcomputer (hereinafter described MPU).

Since all the functions necessary for driving a bit map type LCD device are incorporated in a single chip, using the

ML9445 makes it possible to realize a bit map type dot matrix graphic LCD display system with only a few chips.

Since the bit map method in which one bit of display RAM data turns ON or OFF one dot in the display panel, it is

possible to carry out displays with a high degree of freedom such as Chinese character displays, etc. With one chip,

it is possible to construct a graphic display system with a maximum of 65 Ã 180 dots.

The ML9445 has 65 common signal outputs and 180 segment signal outputs and one chip can drive a display of up

to 65 Ã 180 dots.

FEATURES

â¢ Direct display of the RAM data using the bit map method

Display RAM data â1â ... Dot is displayed

Display RAM data â0â ... Dot is not displayed (during forward display)

â¢ Display RAM capacity

65 Ã 180 Ã 2 = 23,400 bits

â¢ LCD Drive circuits

65 common outputs, 180 segment outputs

â¢ MPU interface: Can select an 8-bit parallel or serial interface or I2C (Write Only)

â¢ Built-in voltage multiplier circuit for the LCD drive power supply

â¢ Built-in LCD drive voltage adjustment circuit

â¢ Built-in LCD drive bias generator circuit

â¢ Can select frame reversal drive or line reversal drive by command

â¢ Built-in oscillator circuit (Internal RC oscillator/external clock input)

â¢ A variety of commands

Read/write of display data, display ON/OFF, forward/reverse display, all dots ON/all dots OFF, set page

address, set display start address, etc.

â¢ Power supply voltage

Logic power supply: VDD-VSS = 2.7 V to 5.5 V

Voltage multiplier reference voltage: VIN-VSS = 2.7 V to 5.5 V

(2- to 5-time multiplier available)

LCD Drive voltage: VBI-VSS = 6.0 to 18.5 V

â¢ Package: ML9445DVWA Gold bump chip (Bump hardness: Low, DV)

â¢ This device is not resistant to radiation and light.

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