¡ Semiconductor
MSM5238
• V , V , V , V (V )
1
2
3
EE
4
Bias supply voltage pins to drive the LCD. Use an external bias voltage supply for driving the
LCD.
• DO
Shift register output pin. The data which was input from DI is output from DO with 32 bits
delay, synchronized with the clock pulse. The MSM5238 is used at 1/32 duty and also at 1/64
duty through cascade connection. Refer to Figure 1 below.
¥ 32
64 ¥ n
LCD panel
¥ 32
Frame
signal
O1
O32
O1
O32
DI
DI
DO
DO
DF
CP
MSM5238
DF
CP
MSM5238
Clock
DF
VDD V1 V2 V3 VEE(V4) Vss
VDD V1 V2 V3 VEE(V4) Vss
GND
–V
+5V
Bias Circuit
Figure 1
Truth Table
Latched data
DF
L
LCD driver output
V2
V4
V3
V1
L
H
L
H
H
8/12
OKI [ OKI ELECTRONIC COMPONETS ]
