OKI MSM5839BGS-2K, MSM5839BGS-K, MSM5839BGS-L2 Datasheet

E2B0022-27-Y2

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This version: Nov. 1997

Previous version: Mar. 1996

MSM5839B

MSM5839B

40-DOT SEGMENT DRIVER

GENERAL DESCRIPTION

The MSM5839B 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 an LCD controller LSI, to 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 the LCD
driving voltage, can be optionally supplied from the external source.

FEATURES

• Supply voltage : 4.5 to 5.5V

• LCD driving voltage : 8 to 18V

• Applicable LCD duty : 1/32 to 1/128

• Bias voltage can be supplied externally

• Applicable common driver : MSM5238 (32 outputs)

• Package options:
56-pin plastic QFP (QFP56-P-910-0.65-K) (Product name: MSM5839B GS-K)
56-pin plastic QFP (QFP56-P-910-0.65-L2) (Product name: MSM5839B GS-L2)
56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM5839B GS-2K)

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BLOCK DIAGRAM

MSM5839B

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

MSM5839B

(Top view)

)

1

(V

1

DI

20

O

CP

)

DD

V

VSSV

21

DD

O

O

LOAD

DF

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

19

O18O17O16O

O

)

4

(V

20

EE

2

3

V

23

22

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

*(V

NC: No connection

NC
NC

NC

DF

LOAD

DI

CP

VDD(V1)

V

VEE(V4)

DO

DI

56-Pin Plastic QFP (Type K)

O1O2O3O4O5O6O7O8O9O10O11O12O13O

2

1

56
55
54
53
52
51

1

50
49
48

SS

47

V

2

V

46

3

45
44

20

43

21

42

40O40O39O38O37O36O35O34O33O32O31O30O29O28

4

3

56789

41

39

40

383736353433323130

DO

NC: No connection

1011121314

14

O

15

15

O

16

16

O

17

17

O

18

18

19

O

19

O

20

20

21

*(VDD)

22

O

21

23

O

22

24

O

23

O

25

24

O

26

25

O

27

26

O

28

27

29

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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ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Condition Rating Unit

Supply Voltage (1) V

Supply Voltage (2)

Input Voltage

Storage Temperature

DD

V

–

DD

V

–

DD

V

T

STG

MSM5839B

*1
*1

V

EE

2

*

V

EE

1

Ta = 25°C

Ta = 25°C

Ta = 25°C

Ta = 25°C

—

0.3 to +6

–

0 to 18

0 to 18

0.3 to V

–

55 to +150

–

DD

+0.3

V

V

V

V

°C

*1 VDD>V2>V3>V

EE

*2 Applies when a series resistor of 47W or more is connected as shown below.

V

DD

R

S

V

DD–VEE

>

47W

=

+V

–V

MSM5839B

V

SS

V

2

V

3

V

EE

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