TOPWAY

LCD Module User Manual

LM6090ACT

4. Function specifications

4.1 Adjusting the Display Contrast

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This LCD module equipped with latest digital contrast adjustment function.

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Its display contrast could be adjusted by MCU command. (please see the command tables for

details)

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It is recommended to provide a contrast adjustment interface for end-user, where the best

display result could meet the individual preference in mass production.

4.2 Basic Setting

To drive the LCD module correctly and provide normally display, please use the following setting

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MX = 0 (Normal)

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MY = 1 (reverse)

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INV select = 0 (Normal)

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LCD Bias Select = 1/9

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Initial Display Line = 0

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Entire Display ON/OFF = OFF (normal)

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Set Power Control Set:

voltage follower = ON, voltage converter = ON, voltage regulator = ON

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Display ON/OFF = ON

Note:

*1. These setting/commands should issue the LCD module while start up.

*2. See the Display Commands section for details.

4.3 Resetting the LCD module

The LCD module should be initialized by using /RES terminal.

While turning on the VDD and VSS power supply, maintain /RES terminal at LOW level. After the

power supply stabilized, release the reset terminal (/RES=HIGH)

4.4 Application Circuit (example)

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Internal Boosting

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Serial mode

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C1,C2=1.0μF (25V)

Note:

Please refer to the ST7567 data sheet for details

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Document Name: LM6090ACT-Manual-Rev0.1.DOC

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