LC75890W Datasheet, PDF (30/32 Pages) Sanyo Semicon Device – 1/4duty and Static Drive General-Purpose LCD Display Drivers

LC75890W, LC75890E
Sample Applications Circuit 1
<LC75890W(SQFP48)>
1/4 Duty, 1/3 Bias Drive
+3.3V
+5V
VDD
VSS
VLCD
COM1
COM2
COM3
COM4
P1/S1
P2/S2
(P1)
(P2)
(P12)
General-purpose
output ports
Used for functions
such as backlight
control
From the
controller
P12/S12
S13
INH
CE
S35
CL
S36
DI
*6 OSCI/S37
*6 Connect the S37/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection
resistor Rg(2.2 to 22kΩ) between the S37/OSCI pin and external clock output pin (external oscillator) in the external
clock operating mode. (See “S37/OSCI Pin Peripheral Circuit”)
Sample Applications Circuit 2
<LC75890W(SQFP48)>
Static Drive
(P1)
(P2)
(P12)
General-purpose
output ports
Used for functions
such as backlight
control
+3.3V
VDD
COM1
VSS
P1/S1
P2/S2
+5V
VLCD
P12/S12
S13
From the
controller
S36
INH
*6 OSCI/S37
CE
COM2
CL
COM3
OPEN
DI
COM4
*6 Connect the S37/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection
resistor Rg(2.2 to 22kΩ) between the S37/OSCI pin and external clock output pin (external oscillator) in the external
clock operating mode. (See “S37/OSCI Pin Peripheral Circuit”)
No.A1971-30/32