MSM6599 datasheet(9/11 Pages) OKI

9 / 11 page

MSM6599B

¡ Semiconductor

9/11

•V1, V3, V4, VEE

Bias supply voltage pins used to drive the LCD. Use an external bias voltage supply for

driving the LCD

•O1 - O80

Output pins for the 4-level driver that directly correspond to each bit of the 80-bit latch (II)

contents. One of V1, V3, V4 and VEE is selected and output by a combination of latched content

and DF signals. See the "Truth Table". Connect this output to the segment side of the LCD.

• DISP OFF

Input pin to control O1 to O80 outputs. The V1 level is output from O1 to O80 pins regardless

of the display data during "L" level input. See the "Truth Table".

Truth Table

Latch Data

DISPOFF

Driver Output (O1 to O80)

VEE

X : Don't Care

NOTES ON USE

Precautions when turning power ON/OFF:

The LCD drivers of this IC require a high voltage. For this reason, if a high voltage is applied to

the LCD drivers with the logic power supply floating, excess current flows. This may damage

the IC.

Be sure to follow the sequence below when turning the power ON or OFF.

Power ON : Logic circuits ON Æ LCD drivers ON, or both ON at a time

Power OFF : LCD drivers OFF Æ logic circuits OFF, or both OFF at a time

MSM6599 Datasheet(PDF) 9 Page - OKI electronic componets