OKI MSM5839CGS-L2, MSM5839CGS-K Datasheet
E2B0021-27-Y2
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This version: Nov. 1997
Previous version: Mar. 1996
MSM5839C
MSM5839C
40-DOT SEGMENT DRIVER
GENERAL DESCRIPTION
The MSM5839C is a dot matrix LCD segment driver LSI which is fabricated using low power
CMOS metal gate technology. This LSI consists of two 20-bit shift registers, two 20-bit latches,
a 40-bit level shifter and a 40-bit 4-level driver.
It converts serial data, which is received from LCD controller LSI, into parallel data and outputs
LCD driving waveform to the LCD panel.
Expansion of display can easily be made by increasing the number of characters and character
patterns.
This LSI can drive a variety of LCD panels because the bias voltage, which determines an LCD
driving voltage, can be optionally supplied from the external source.
FEATURES
• Supply voltage : 4.5 to 5.5V
• LCD driving voltage : 4 to 11V
• Applicable LCD duty : 1/3 to 1/64
• Bias voltage can be supplied externally.
• Applicable commomn driver: MSM5238 (32 outputs)
• Package options:
56-pin plastic QFP (QFP56-P-910-0.65-K) (Product name: MSM5839C GS-K)
56-pin plastic QFP (QFP56-P-910-0.65-L2) (Product name: MSM5839C GS-L2)
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BLOCK DIAGRAM
MSM5839C
VDD(V1)
V
V
V
EE(V4
DF
LOAD
DI
CP
O1O
2
2
3
O19O20O21O
22
40-Bit 4-Level Driver
O39O
40
V
DD
)
V
EE
40-Bit Level Shifter
V
DD
20-Bit Latch 20-Bit Latch
1
20-Bit Shift
Register
20-Bit Shift
Register
V
SS
V
SS
DO
40
DO20DI
21
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PIN CONFIGURATION (TOP VIEW)
(Top view)
NC
NC
NC
56555453525150494847464544
1
O
1
O
2
2
O
3
3
4
O
4
5
O
5
6
O
6
7
O
7
8
O
8
9
O
9
10
O
10
11
O
11
12
O
12
13
O
13
14
O
14
15161718192021222324252627
15
MSM5839C
)
4
(V
1
LOAD
DI
DF
O18O17O16O
CP
)
20
19
DD
O
O
DD
V
21
O
2
VSSV
V
23
22
O
*(V
20
EE
3
O24O
DI 21DO
V
43
42
DO
40
O
41
40
O
40
39
39
O
38
38
O
37
37
O
36
36
O
35
35
O
34
34
O
33
33
O
32
32
O
31
31
O
30
30
O
29
29
O
28
28
27O26
25
O
O
NC: No connection
56-Pin Plastic QFP (Type K)
12
5
1
123456789
56
NC
NC
55
NC
54
53
DF
52
LOAD
51
DI
1
50
CP
49
V
DD
48
V
SS
47
V
2
46
V
3
DO
45
44
20
43
DI
21
42414039383736353433323130
40
40
VEE(V4)O
DO
6
7
O
O
O4O3O2O
O38O39O
O
36
37
O
8
O
O34O35O
O9O
33
O
10
11
O
1011121314
32
29
30
O31O
O
O14O13O
15
O
15
O
16
16
O
17
17
18
O
18
19
O
19
20
O
20
21
*(VDD)
22
O
21
23
O
22
24
O
23
25
O
24
26
25
27
O
26
28
O
27
29
O28O
NC: No connection
56-Pin Plastic QFP (Type L)
* This pin is internally connected to VDD, so connect it to the power supply or leave it open.
Note : The figure for Type L shows the configuration viewed from the reverse side of the package.
Pay attention to the difference in pin arrangement.
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