
LH168K
7
SYMBOL
FUNCTIONS
XO
1
-XO
108
YO
1
-YO
108
ZO
1
-ZO
108
Used as LCD drive output pins which output the voltage corresponding to the input of data
input pins. When 321-output mode, 3 outputs (XO
54
to ZO
54
) are invalid. When 312-output
mode, 12 outputs (XO
55
to XO
58
, YO
55
to YO
58
, ZO
55
to ZO
58
) are invalid. When 309-
outputs mode, 15 outputs (XO
54
to XO
58
, YO
54
to YO
58
, ZO
54
to ZO
58
) are invalid. Invalid
output pins must be opened. Data of XO
1
to XO
108
correspond to XA
0
to XA
5
and XB
0
to
XB
5
. Data of YO
1
to YO
108
correspond to YA
0
to YA
5
and YB
0
to YB
5
, and data of ZO
0
to
ZO
108
correspond to ZA
0
to ZA
5
and ZB
0
to ZB
5
. For relation between input data and
output voltage values, refer to
"Functional Operations"
and
"Output Voltage Value"
.
Used as input pins for input data polarity exchange, POLA corresponds to XA
0
to XA
5
, YA
0
to YA
5
and ZA
0
to ZA
5
, and POLB corresponds to XB
0
to XB
5
, YB
0
to YB
5
and ZB
0
to ZB
5
.
When "L" is entered, display data becomes normal mode. When "H" is entered, input data
becomes polarity exchange mode. For relation between input data and output voltage
values, refer to
"Output Voltage Value"
. These pins are pulled down at the inside.
Used as polarity exchange pins of LCD drive output. Data is taken at the term when LS is
"H" and the output polarity of the LCD drive output pin is determined. Function of REV is
the same as function of REV
2
. Input polarity exchange signal to REV, and REV
2
is fixed to
"L" or opened in general.
When 321-output/309-output mode, it is possible to exchange output polarity between LCD
driver next to each other by fixing REV
2
to "L" or "H" according to position on panel. For
exchanging, refer to
"Output Characteristics"
. REV
2
pin is pulled down at the inside.
POLA
POLB
REV
REV
2