GMS81C50 datasheet(14/99 Pages) HYNIX

Part #	GMS81C50

Description	8-BIT SINGLE CHIP MICROCONTROLLERS

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Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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14 / 99 page

HYUNDAI

GMS81C50 Series

11

PIN NAME

INPUT/

OUTPUT

Function

@ RESET @ STOP

R00

I/O

R01

R02

R03

R04

R05

R06

R07

R10

R11/INT1

R12/INT2

R13

R14/EC

R15/T2

R16/T1

R17/T0

R20

R21

R22

R23

R24

XIN

XOUT

REMOUT

RESET

TEST

VDD

I/O

I

O

I

P

- Each bit of the port can be

individually configured as an

input or an output by user software

- Push-pull output

- CMOS input with pull-up resistor

(can be selectable by user software)

- Can be programmable as Key

Scan Input or Open drain output

- Pull-ups are automatically

disabled at output mode

- Each bit of the port can be

individually configured as an

input or an output by user software

- CMOS input with pull-up resistor

(can be selectable by user software)

- Push-pull output

- Can be programmable as

Open drain output

- Direct Driving of LED(N-TR)

- Pull-ups are disabled at output

mode

Low

High

- Oscillator Input

- Oscillator Output

`L` output `L` Output

- High Current Output

`L` level

state

of before

STOP

- Includes pull-up resistor

- Positive power supply

-Ground

Pin Numbers

28Pin 40PDIP 44PLCC 44QFP

28

1

13

41

1

2

14

42

2

3

15

43

3

4

16

44

4

5

17

1

5

6

18

2

6

7

19

3

7

8

20

4

11

16

29

12

17

30

13

18

31

14

19

32

15

17

22

36

19

18

23

37

20

26

40

23

21

27

41

24

R25

I/O

R26

I/O

R27

I/O

23

33

4

31

24

34

5

32

25

35

6

33

26

36

7

34

27

37

8

35

-

38

9

36

-

39

10

37

-

40

11

38

VSS

P

10

15

28

11

9

14

27

10

19

24

38

21

16

21

35

18

15

20

33

16

8

11

12,23,24

6,7,39

22

31

1,2.34 17,28,29

R30

R31

R32

R33

R34

I/O

INPUT

State

of before

STOP

R35

I/O

R36

I/O

R37

I/O

-

28

42

25

-

29

43

26

-

30

44

27

-

32

3

30

-

9

21

4

-

10

22

5

-

12

25

8

-

13

26

9

R40

I/O

-

25

39

22

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GMS81C50 Datasheet(PDF) 14 Page - Hynix Semiconductor

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