OKI MSM5238GS-2K, MSM5238GS-K, MSM5238GS-L2 Datasheet
E2B0027-27-Y2
¡ Semiconductor
This version: Nov. 1997
Previous version: Mar. 1996
MSM5238¡ Semiconductor
MSM5238
32-DOT LCD COMMON DRIVER
GENERAL DESCRIPTION
The MSM5238 is a dot matrix LCD common driver LSI which is fabricated using low power
CMOS metal gate technology. The scanning signal in one matrix display frame can be divided
into up to 1/32 duty. This LSI consists of 32-bit shift register, 32-bit level shifter and 32-bit 4-level
driver.
This LSI 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
• Supply voltage : 3 to 7V
• LCD driving voltage : 3 to 16V
• Applicable LCD duty : 1/32 to 1/64
(1/64 duty is available when MSM5238s are cascade-connected)
• Bias voltage can be supplied externally.
• Applicable segment driver: MSM5839B/C (40 outputs)
• Package options:
44-pin plastic QFP (QFP44-P-910-0.80-K) (Product name: MSM5238GS-K)
44-pin plastic QFP (QFP44-P-910-0.80-L2) (Product name: MSM5238GS-L2)
44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSM5238GS-2K)
1/12
BLOCK DIAGRAM
MSM5238¡ Semiconductor
V
DD
V
V
V
VEE(V4)
DF
DI
CP
O
1
1
2
3
32-Bit 4-Level Driver
32-Bit Level Shifter
32-Bit Shift Register
O
32
V
DD
V
EE
V
DD
V
SS
V
SS
DO
2/12
PIN CONFIGURATION (TOP VIEW)
(Top view)
NC
DI
43
44
1
O
1
O
2
2
3
O
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
DF
42
41
VSSCP
40
39
38
37
V
36
MSM5238¡ Semiconductor
)
4
(V
EE
3V2V1VDD
DO
V
34
35
33
O
32
O
32
31
31
O
30
30
O
29
29
O
28
28
O
27
27
O
26
26
O
25
25
O
24
24
O
23
23
O
22
NC
DF
CP
V
V
DD
V
V
V
VEE(V4)
DO
16
15
14
13
12
16
15
14
12
O13O
O
O
O
NC: No connection
44-Pin Plastic QFP (Type K)
5
4
3
2
1
44
DI
43
42
41
40
SS
39
38
1
37
2
36
3
35
34
17
)
DD
*(V
6
18
O
22
21
20
19
21
20
19
18
17
O
7
O
O
8
O
11
10
9O8O7O6O5O4O3O2O1
O
O
O
9
10
11
12
13
14
15
16
17
18
19
20
21
22
O
12
O
13
O
14
O
15
O
16
*(VDD)
O
17
O
18
O
19
O
20
O
21
23
24
25
26
27
28
29
30
31
32
33
22
23
24
25
26
29
30
31
32
O
O
O
27
O
O28O
O
O
O
O
O
NC: No connection
44-Pin Plastic QFP (Type L)
* Pin 17 is an auxiliary pin. It must be connected to the power supply or left 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.
3/12
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Condition Rating Unit
Supply Voltage
Supply Voltage
Input Voltage
Storage Temperature
V
DD
V
LCD
V
I
T
STG
Ta = 25°C –0.3 to +7 V
Ta = 25°C, VDD–V
Ta = 25°C –0.3 to V
RECOMMENDED OPERATING CONDITIONS
Parameter Symbol Condition Range Unit
Supply Voltage
Supply Voltage
Operating Temperature
Fan-Out
V
DD
V
LCD
T
op
VDD–VEE * 3 to 16 V
N MOS load 5 —
MSM5238¡ Semiconductor
EE
— –55 to +150 °C
— 3 to 7 V
— –40 to +85 °C
0 to 16.5 V
DD
V
* V
≥ V1 ≥ V2 ≥ V3 ≥V
DD
EE
(V4)
4/12
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