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MSM6568A
¡ Semiconductor
GENERAL DESCRIPTION
The MSM6568A is a dot matrix LCD common driver which is fabricated in CMOS technology.
The MSM6568A consists of two 80-bit bidirectional shift registers, two 80-bit level shifters, and
two 80-bit 4-level drivers.
The MSM6568A is equipped with 160 output pins. By connecting two or more MSM6568A
devices in cascade, the number of LCD outputs can be increased.
The MSM6568A can drive a variety of LCD panels because the bias voltage, which determines
the LCD driving voltage, can be optionally supplied from an external source.
FEATURES
· Logic supply voltage
: 2.7 to 5.5V
· LCD driving voltage
: 14 to 28V
· Applicable LCD duty
: 1/64 to 1/256
· External bias power supply available
· Package :
TCP mounting with 70mm wide film
(Product name : MSM6568AV-Z)
Tin-plated
¡ Semiconductor
MSM6568A
160-DOT COMMON DRIVER
E2B0047-27-Y2
This version: Nov. 1997
Previous version: Mar. 1996
5/8
MSM6568A
¡ Semiconductor
ELECTRICAL CHARACTERISTICS
DC Characteristics
*1 Applied to CP, IO
1
, IO
80
, IO
81
, IO
160
, SHL, DF, DISPOFF
*2 Applied to IO
1
, IO
80
, IO
81
, IO
160
*3 V
N
=V
DD
to V
EE
, V
2
=1/16 (V
DD
V
EE
), V
5
=15/16 (V
DD
V
EE
)
V
DD
=V
1
, V
DD
=4.5V, V
1
=V
1L
=V
1R
, V
2
=V
2L
=V
2R
, V
5
=V
5L
=V
5R
, V
EE
=V
EEL
=V
EER,
V
DD
=V
DDL
=V
DDR
*4 Applied to O
1
to O
160
*5 Input a "H" level signal through the IO pins every 240 clock pulses when a supply current is
measured.
The DF frequency is 45Hz.
Switching Characteristics
*1 IO
n
=IO
1
-IO
160
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
"H", "L" Propagation Delay Time
t
PHL
t
PLH
--
--
--
3
ms
Maximum Clock Frequency
f
CP
--
1
--
--
MHz
Clock Pulse Width
t
WCP
--
63
--
--
ns
Data Setup Time
IO
n
ÆCP
t
setup
--
100
--
--
ns
Data Hold Time
CPÆIO
n
t
hold
--
100
--
--
ns
Rise Time / Fall Time of CP
t
r(CP)
t
f(CP)
--
--
--
20
ns
(V
DD
=2.7 to 5.5V, Ta=20 to +75°C, C
L
=15pF)
*1
*1
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
"H" Input Voltage
V
IH
--
0.8V
DD
--
--
V
"L" Input Voltage
V
IL
--
--
--
0.2V
DD
V
"H" Input Current
I
IH
V
I
=V
DD
, V
DD
=5.5V
--
--
1
mA
"L" Input Current
I
IL
V
I
=0V, V
DD
=5.5V
--
--
1
mA
"H" Output Voltage
V
OH
I
O
=0.2mA, V
DD
=2.7V
V
DD
0.4
--
--
V
"L" Output Voltage
V
OL
I
O
=0.2mA, V
DD
=2.7V
--
--
0.4
V
ON Resistance
R
ON
V
DD
V
EE
=25V
| V
N
V
O
|=0.25V
--
--
2.0
kW
--
--
Supply Current
I
SS
CP=22kHz, V
DD
=3.0V
--
--
50
I
EE
V
DD
V
EE
=25V, no load*5
--
--
300
mA
Input Capacitance
C
I
f=1MHz
--
5
--
pF
*3
(V
DD
=2.7 to 5.5V, Ta=20 to +75°C)
*1
*1
*1
*1
*2
*2
*4
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