MSM9000B-xx OKI electronic componets, MSM9000B-xx Datasheet - Page 13

• Manufacturer Part Number: MSM9000B-xx
• Description: DOT MATRIX LCD CONTROLLER
• Manufacturer: OKI electronic componets

¡ Semiconductor
• TEST (Test Signal)
• SEG1 to SEG60 (Segment 1 to Segment 60)
• COM1 to COM16 (Common 1 to Common 16)
• V
• V
• V
• V
• V
• V
Test signal input pin provided for test by the manufacturer. Fix this pin to L or leave it open.
Segment signal output pins to drive the LCD. Leave the unused pins open.
Common signal output pins to drive the LCD. When the duty cycle is 1/9, use COM1 to COM9
and leave COM10 to COM16 open.
Power supply pin to the logic section. Connect this pin to the positive terminal on the power
supply.
Pin to be connected to the GND power supply.
Pins for voltage multiplier outputs and LCD power supply. Connect capacitors of 0.1 F
between these pins and V
stabilization during generation of LCD bias voltages. The logical values of the LCD bias
voltage are as follows:
For both the 1/9 and 1/16 duty, 1/4 bias is used.
Voltage regulator output pin & LCD bias generator input used as a reference voltage for the
LCD bias generator.
Connect a capacitor of 0.1 F between this pin and V
capacitors and voltage stabilization during generation of various LCD bias voltages.
Pin to connect the capacitor to store the 3-/2-fold voltage. Connect a capacitor of 0.1 F or more
between this pin and V
Halves output pin for the voltage multiplier(3-/2-fold). Connect a 0.1 F capacitor between
this pin and V
DD
SS
SS1
SS2
SS6
SH
, V
,
3
Highest voltage: V
Lowest voltage: V
SS4
, V
SS5
DD
N1
H
H
.
L
L
DD
V
V
V
N2
H
H
L
L
DD
DD
SS1
SS2
SS4
SS5
.
=V
,
=V
=V
for the charge distribution with V
3
SS2
SS2
SS2
Contrast adjustment range by command
,
,
,
3
3
3
/2
+V
+V
SS2
SS2
,
,
3
3
/2
/2+V
SS2
3 to A
0 to 7
1 to 8
2 to 9
,
3
/2
DD
for charge distribution among
SS2
,
3
capacitor and for voltage
MSM9000B-xx
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