ST8024

Ver 2.1

Page 9/28

2009/08/19

Not used

XCK

Not used

XCK is pulled down in common mode, so connect to LGND or open.

LCD drive output pins

selected and output.

Table of truth values is shown in "TRUTH TABLE" in Functional Operations.

7.2

Functional Operations

7.2.1

Truth table

(Segment Mode)

FR

LATCH DATA

/DISPOFF

LCD DRIVE OUTPUT VOLTAGE LEVEL (Y1-Y240)

L

L

H

L

H

H

H

L

H

H

H

H

X

X

L

(Common Mode)

FR

LATCH DATA

/DISPOFF

LCD DRIVE OUTPUT VOLTAGE LEVEL (Y1-Y240)

L

L

H

L

H

H

H

L

H

H

H

H

X

X

L

NOTES:

"Don't care" should be fixed to "H" or "L", avoiding floating.

There are two kinds of power supply (logic level voltage and LCD drive voltage) for the LCD driver.

Supply regular voltage which is assigned by specification for each power pin.