May 2001

Specifications subject to change without notice,contact your sales representatives for the most recent information.

2/16

Ver 1.1

SM8051/8052 07/2005

SyncMOS Technologies Inc.

SM8051/80952

Pin Configurations

VDD

P0.0/AD0

P0.1/AD1

P0.2/AD2

P0.3/AD3

P0.4/AD4

P0.5/AD5

P0.6/AD6

P0.7/AD7

#EA

ALE

#PSEN

P2.7/A15

P2.6/A14

P2.5/A13

P2.4/A12

P2.3/A11

P2.2/A10

P2.1/A9

P2.0/A8

P1.0

P1.1

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

RES

RXD/P3.0

TXD/P3.1

#INT/P3.2

#INT1/P3.3

T0/P3.4

T1/P3.5

#WR/P3.6

#RD/P3.7

XTAL1

XTAL2

VSS

1

2

3

4

5

6

7

8

9

11

12

13

14

15

16

17

18

19

20

10

40

39

38

37

36

35

34

33

32

31

30

28

27

26

25

24

23

22

21

29

P0.4/AD4

P0.5/AD5

P0.6/AD6

P0.7/AD7

#EA

NC

ALE

#PSEN

P2.7/A15

P2.6/A14

P2.5/A13

P1.5

P1.6

P1.7

RES

RXD/P3.0

NC

TXD/P3.1

#INT0/P3.2

#INT1/P3.3

T0/P3.4

T1/P3.5

SM8051/8052

44L PLCC

(Top View)

6

5

4 3 2 144 43 42 41 40 39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

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AD3/P0.3

AD2/P0.2

AD1/P0.1

AD0/P0.0

VDD

NC

P1.0

P1.1

P1.2

P1.3

P1.4

P2.4/A12

P2.3/A11

P2.2/A10

P2.1/A9

P2.0/A8

NC

VSS

XAL1

XAL2

P3.7/#RD

P3.6/#WR

SM8051/8052

44L QFP

(Top View)

33 32 31 30

27 26 25 24 23

29 28

22

21

20

18

17

16

15

14

13

19

12

11

10

9

8

7

6

5

4

3

2

1

44

43

42

41

40

39

38

37

36

35

34

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