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4. FUNCTIONS OF THE TERMINALS
Terminal
names
O0 ~ O79
D0 ~ D3
XSCL
LP
EIO1, EIO2
SHL
FR
V
, V
DD
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V0, V2,
V3, V5
DSPOFF
*1 Be sure to connect pairs of V0 - V5 to respective LCD power sources.
I/O
O
LCD driving segment (column) output.
The output level varies by the trailing edge of the LP.
I
Display data input
I
Shift clock input of display data (trailing edge trigger)
I
Latch pulse input of display data (trailing edge trigger)
I/O
Inable input and output.
Set to input or output depending on the SHL input level.
The output is reset by the LP input and, after receiving 80 bit
data, it automatically rises to HIGH.
I
Shifting direction choice and input/output controlling input to the
EIO terminal.
When data are input to (D3, D2 ...D0) terminals in the order of
(a,b,c,d,e,f,g,h).....(w,x,y,z), relations between data and segment
outputs are as follows:
(Note) Relations between data and segment outputs are
I
Input of the alternating signal of the LCD drive output.
Power
Power supply for the logics
SS
source
Power
Power supply for the LCD driver circuit
source
I
Forced blank input
At the LOW level, it forces the output to V0 level.
* When using this function, the unit may be used in common
with S1D16700
Functions
O Output
SHL
79 78
77
LOW a
b
c
. . . x
HIGH z
y
x
. . . c
determined independent from the shift clock number.
V
V
V
V
*1 3/9 V
01
.
*
**
EPSON
S1D16400 Series
EIO
2
1
0
EIO1
EIO2
y
z
Output Input
b
a
Input OUtput
: 0V
DD
: –2.7 ~ –5.5V
SS
: 0V
V
: –8 ~ –28V
DD
5
> > = V
> > = V
> > = 6/9 V
DD
0
2
5
> > = V
> > = V
5
3
5
Numbers of
terminals
80
4
1
1
2
1
1
3
8
1
Total 107
(including NC5)
2–3
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