MC141539 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MC141539

LCD Segment / Common Driver with Controller

Motorola => Freescale 

increase or decrease the contrast level within the 16 contrast levels.

The contrast level starts from lowest value after POR.

Set Contrast Level

This command is to select one of the 16 contrast levels when

internal contrast control circuitry is in use.

Read Contrast Value

This command allows the user to read the current contrast level

value. With R/W input high (READ), D/C input low (COMMAND) and

D7 D6 D5 D4 are equal to 0 0 0 1, the value of the internal contrast

value can be read on D0-D3 at the falling edge of CS.

Set Temperature Coefficient

A temperature gradient selector circuit controlled by two control

bits TC1 and TC2. This command can select 4 different LCD driving

voltage temperature coefficients to match various liquid crystal tem-

perature grades. Those temperature coefficients are specified in

Electrical Characteristics Tables.

MOTOROLA

MC141539

3–137

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