LCD Controller /Driver
1 /10
V1.1
Syntek Semiconductor Co., Ltd.
GSM793E
(80CH Segment Driver For Dot Matrix LCD)
Introduction :
GSM793E is a segment driver for dot matrix type LCD display. It features 80
channels with 40 X 2 bits bi-directional shift registers, data latches, LCD drivers
and logic control circuits. It is fabricated by high voltage CMOS process with
low current consumption.
The GSM793E can convert serial data received from an LCD controller, such as
GSM7980, into parallel data and send out LCD driving waveforms to the LCD
panel. The GSM793E is designed for general purpose LCD drivers. It can drive
both static and dynamic drive LCD. The LSI can be used as segment driver.
The GSM793E has pin function compatibility with the KS0063(B) that allows
the user to easily replace it with an GSM793E.
Functions :
l
Dot matrix LCD driver with two 40 channel outputs
l
Bias voltage (V1 ~ V4)
l
input/output signals
n
Input : Serial display data and control pulse from controller IC
n
Output : 40 X 2 channels waveform for LCD driving
Features :
l
Display driving bias : static to 1/5
l
Power supply for logic : 2.7V ~ 5.5V
l
Power supply for LCD voltage (V
DD
~V
EE
) : 3V ~ 11V
100 Pin QFP package and bare chip available
LCD Controller /Driver
2 /10
V1.1
Syntek Semiconductor Co., Ltd.
GSM793E
SEGMENT DRIVER
SEGMENT DRIVER
DATA LATCH(40BITs)
DATA LATCH(40BITs)
BIDIRECTIONAL
SHIFTER(40BITs)
BIDIRECTIONAL
SHIFTER(40BITs)
CONTOL
V1
V2
V3
V4
M
CL1
CL2
DL1 SHL1 DR1 DL2 SHL2 DR2
S1 ...................S40 S41... ... ... ... S80
VDD
VSS
VEE
GSM793E FUNCTIONAL BLOCK
LCD Controller /Driver
3 /10
V1.1
Syntek Semiconductor Co., Ltd.
GSM793E
Pin Description :
PIN NAME PURPOSE
DESCRIPTION
I/O
VDD
POWER
for logic
N/A
VSS
GROUND
for logic
N/A
VEE
LCD GND
for LCD driving voltage
N/A
V1 V2
LCD output
used as select voltage level
I
V3 V4
LCD output
used as non select voltage level
I
S1-S40
segment
LCD driver output for part 1
O
SHL1
direction
direction control for part 1 segments
I
DL1, DR1
data in /out
If SHL1 = 1 then DL1=out, DR1=in
If SHL1 = 0 then DL1=in, DR1=out
I/O
S41-S80
segment
LCD driver output for part 2
O
SHL2
direction
direction control for part 2 segments
I
DL2, DR2
data in/out
If SHL2 = 1 then DL2=out, DR2=in
If SHL2 = 0 then DL2=in, DR2=out
I/O
M
alternation
Alternate the LCD driving waveform
I
CL1
latch clock
latch the data after shift is completed
I
CL2
shift clock
shift the data into the segments
I
LCD Controller /Driver
4 /10
V1.1
Syntek Semiconductor Co., Ltd.
GSM793E
PAD Arrangement
5
6
7
8
2
3
4
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
2
1
2
2
2
3
2
4
1
7
1
8
1
9
2
0
2
5
2
6
2
7
2
8
2
9
3
0
1
9
6
9
5
9
4
9
3
9
2
9
1
9
0
8
9
8
8
8
7
8
6
8
5
8
4
8
3
8
2
8
1
8
0
7
9
7
4
7
3
7
2
7
1
7
7
7
6
7
5
7
0
6
9
6
8
6
7
6
6
6
5
6
4
6
3
5
8
5
7
5
6
5
5
6
2
6
1
6
0
5
9
5
4
5
3
5
2
5
1
5
0
4
9
7
8
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
(
0
,
0
)
S
i
z
e
:
3
8
0
0
x
2
6
0
0
u
m
2
C
o
o
r
d
i
n
a
t
e
:
c
e
n
t
e
r
M
i
n
.
P
A
D
P
i
t
c
h
:
1
2
0
u
m
G
S
M
7
9
3
E
"
G
S
M
7
9
3
E
"
M
a
r
k
i
n
g
:
E
a
s
y
t
o
f
i
n
d
t
h
e
P
A
D
C
i
r
c
l
e
h
e
r
e
t
o
f
i
n
d
t
h
e
f
i
r
s
t
P
A
D
LCD Controller /Driver
5 /10
V1.1
Syntek Semiconductor Co., Ltd.
GSM793E
PAD NAMES AND COORDINATES
P a
d
N o
.
P a d
N a m
e
X
Y
1
S42
-1760 -1160
2
S43
-1630 -1160
3
S44
-1500 -1160
4
S45
-1380 -1160
5
S46
-1260 -1160
6
S47
-1140 -1160
7
S48
-1020 -1160
8
S49
-900 -1160
9
S50
-780 -1160
10
S51
-660 -1160
11
S52
-540 -1160
12
S53
-420 -1160
13
S54
-300 -1160
14
S55
-180 -1160
15
S56
-60 -1160
16
S57
60 -1160
17
S58
180 -1160
18
S59
300 -1160
19
S60
420 -1160
20
S61
540 -1160
21
S62
660 -1160
22
S63
780 -1160
23
S64
900 -1160
24
S65
1020 -1160
25
S66
1140 -1160
26
S67
1260 -1160
27
S68
1380 -1160
28
S69
1500 -1160
29
S70
1630 -1160
30
S71
1760 -1160
31
S72
1760 -1030
32
S73
1760
-900
P a
d
N o
.
P a d
N a m e
X
Y
33
S74
1760 -780
34
S75
1760 -660
35
S76
1760 -540
36
S77
1760 -420
37
S78
1760 -300
38
S79
1760 -180
39
S80
1760
-60
40
S40
1760
60
41
S39
1760
180
42
S38
1760
300
43
S37
1760
420
44
S36
1760
540
45
S35
1760
660
46
S34
1760
780
47
S33
1760
900
48
S32
1760 1030
49
S31
1760 1160
50
S30
1630 1160
51
S29
1500 1160
52
S28
1380 1160
53
S27
1260 1160
54
S26
1140 1160
55
S25
1020 1160
56
S24
900 1160
57
S23
780 1160
58
S22
660 1160
59
S21
540 1160
60
S20
420 1160
61
S19
300 1160
62
S18
180 1160
63
S17
60 1160
64
S16
-60 1160
P a
d
N o
.
P a d
N a m
e
X
Y
65
S15
-180 1160
66
S14
-300 1160
67
S13
-420 1160
68
S12
-540 1160
69
S11
-660 1160
70
S10
-780 1160
71
S9
-900 1160
72
S8
-1020 1160
73
S7
-1140 1160
74
S6
-1260 1160
75
S5
-1380 1160
76
S4
-1500 1160
77
S3
-1630 1160
78
S2
-1760 1160
79
S1
-1760 1030
80
VEE -1760
900
81
V1
-1760
780
82
V2
-1760
660
83
V3
-1760
540
84
V4
-1760
420
85
VSS
-1760
300
86
CL1
-1760
180
87 SHL1 -1760
60
88 SHL2 -1760
-60
89 VDD -1760
-180
90
CL2
-1760
-300
91
DL1
-1760
-420
92
DR1
-1760
-540
93
DL2
-1760
-660
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