Silan
Semiconductors
1/3 DUTY GENERAL-PURPOSE LCD
DRIVER
DESCRIPTION
The SC75823 is a general-purpose LCD driver that can be used
for frequency display in microprocessor-controlled radio receives
and in other display applications. In addition to being able to directly
drive up to 156 LCD segments.
SC75823
QFP-64-14x14-0.8
FEATURES
•
Supports both 1/3 duty 1/2 bias and 1/3 duty 1/3 bias LCD
drive of up to 156 segments under serial data control.
•
Serial data input supports CCB format communication with the
system controller.
•
Serial data control of the power-saving mode based backup
function and all the segments forced off function.
•
High generality since display data is displayed directly without
decoder intervention.
•
The
INH
pin can force the display to the off state.
•
The LCD drive bias voltage can be provided internally or
externally.
•
Power supply voltage: 4.5 to 6.0V
LQFP-64-10 x 10-0.5
ORDERING INFORMATION
Device
SC75823A
SC75823B
Package
LQFP-64-10 X 10-0.5
QFP-64-14 X 14-0.8
BLOCK DIAGRAM
COM1 COM2 COM3
S52
S51
S1
V
DD1
Common Driver
V
DD2
Latch & Driver
INH
Shift Register
OSC
Clock
Generator
Address
Detector
DI
CL
CE
V
DD
V
SS
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
2002.03.04
1
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
