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EN6370B Datasheet(PDF) 33 Page - Sanyo Semicon Device

Part No. EN6370B
Description  LCD Display Driver with Key Input Function
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

EN6370B Datasheet(HTML) 33 Page - Sanyo Semicon Device

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LC75808W
No.6370-33/38
Sample Application Circuit 4
1/9 duty, 1/4 bias drive technique (for use with large panels)
Note: *6. Add a capacitor to the logic block power supply line so that the logic block power supply voltage VDD rise
time when power is applied and the logic block power supply voltage VDD fall time when power drops are
both at least 1ms, as the LC75808W is reset by the VDET.
*7. If a variable resistor is not used for display contrast fine adjustment, the VLCD4 pin must be connected to
ground.
*8. If the function of the INH pin is not used, the INH pin must be connected to the logic block power supply
VDD.
*9. The DO pin, being an open-drain output, requires a pull-up resistor. Select a resistance (between 1k
Ω to
10k
Ω) appropriate for the capacitance of the external wiring so that signal waveforms are not degraded.
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
OPEN
COM10
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S56
S57
S58
S59
S60
P1
P2
P3
P4
CR
R
R
R
C
C
*6
OSC
INH * 8
*9
CE
CL
DI
DO
K
I
5
K
I
4
K
I
3
K
I
2
K
I
1
K
S
6
K
S
5
K
S
4
K
S
3
K
S
2
K
S
1
LCD panel
A12925
+5V
+8V
C
0.047μF
10k
ΩR2.2kΩ
Used with the backlight
controller or other circuit.
general-purpose output ports
Key matrix
(up to 30 keys)
From the controller
To the controller
To the controller
power supply
VDD
TEST
VSS
VLCD
VLCD0
VLCD1
VLCD2
VLCD3
VLCD4*7


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