¡ Semiconductor
ML9041
Symbol
CSR
Description
The input pin to select the transfer direction of the common signal output data.
Refer to the Expansion Instruction Codes section about the AS bit.
CSR
L
L
L
L
L
L
H
H
H
H
H
H
duty
1/9
1/9
1/12
1/12
1/17
1/17
1/9
1/9
1/12
1/12
1/17
1/17
AS bit
L
H
L
H
L
H
L
H
L
H
L
H
shift direction
COM1
Æ
COM9
COM2
Æ
COM9, COM1
COM1
Æ
COM12
COM2
Æ
COM12, COM1
COM1
Æ
COM17
COM2
Æ
COM17, COM1
COM9
Æ
COM1
COM8
Æ
COM1, COM9
COM12
Æ
COM1
COM11
Æ
COM1, COM12
COM17
Æ
COM1
COM16
Æ
COM1, COM17
arbitrator's common pin
COM9
COM1
COM12
COM1
COM17
COM1
COM1
COM9
COM1
COM12
COM1
COM17
SSR
The input pin to select the transfer direction of the segment signal output data.
“L”: Data transfer from SEG
1
to SEG
100
“H”: Data transfer from SEG
100
to SEG
1
V
1
, V
2
, V
3A
, V
3B
, V
4
The pins to output bias voltages to the LCD.
For 1/4 bias : The V
2
and V
3B
pins are shorted.
For 1/5 bias : The V
3A
and V
3B
pins are shorted.
BEB
The input pin to enable or disable the voltage multiplier circuit.
“L” disables the voltage multiplier circuit. “H” enables the voltage multiplier circuit.
The voltage multiplier circuit doubles the input voltage V
IN
and outputs it to the V
5IN
pin.
The voltage multiplier circuit can be used only when generating a level lower than GND.
V
IN
V
5
, V
5IN
The pin to input voltage to the voltage multiplier.
The pins to supply the LCD drive voltage.
The LCD drive voltage is supplied to the V
5
pin when the voltage multiplier is not used
(BEB = 0) and the internal contrast adjusting circuit is also not used. At this time, the
V
5IN
pin should be open.
The LCD drive voltage is supplied to the V
5IN
pin when the voltage multiplier is not used
(BEB = 0) but the internal contrast adjusting circuit is used. At this time, the V
5
pin
should be open.
When the voltage multiplier is used (BEB = 1), the V
5IN
and V
5
pins should be open (the
multiplied voltage is output to the V
5IN
pin). In this case, the internal contrast adjusting
circuit is used automatically.
V
C
V
CC
The pin to connect the positive pin of the capacitor for the voltage multiplier.
The pin to connect the negative pin of the capacitor used for the voltage multiplier.
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