N87C251SP16 데이터 시트보기 (PDF) - Intel

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N87C251SP16

HIGH-PERFORMANCE CHMOS MICROCONTROLLER

Intel 

8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER

Table 5. 8XC251SA/SB/SP/SQ PLCC/DIP Pin Assignments Arranged by Functional Category

Address & Data

Input/Output

Name

PLCC DIP

Name

PLCC DIP

AD0/P0.0

43

39

P1.0/T2

2

1

AD1/P0.1

42

38

P1.1/T2EX

3

2

AD2/P0.2

41

37

P1.2/ECI

4

3

AD3/P0.3

40

36

P1.3/CEX0

5

4

AD4/P0.4

39

35

P1.4/CEX1

6

5

AD5/P0.5

38

34

P1.5/CEX2

7

6

AD6/P0.6

37

33

P1.6/CEX3/WAIT#

8

7

AD7/P0.7

36

32

P1.7/CEX4/A17/WCLK 9

8

A8/P2.0

24

21

P3.0/RXD

11

10

A9/P2.1

25

22

P3.1/TXD

13

11

A10/P2.2

26

23

P3.4/T0

16

14

A11/P2.3

27

24

P3.5/T1

17

15

A12/P2.4

28

25

A13/P2.5

29

26

Power & Ground

A14/P2.6

30

27

Name

PLCC DIP

A15/P2.7

31

28

P3.7/RD#/A16

19

17

P1.7/CEX4/A17/WCLK 9

8

Processor Control

Name

PLCC DIP

VCC

VCC2

VSS

VSS1

VSS2

EA#/VPP

44

40

12

22

20

1

23, 34

35

31

P3.2/INT0#

14

12

Bus Control & Status

P3.3/INT1#

15

13

Name

PLCC DIP

EA#/VPP

RST

35

31

10

9

P3.6/WR#

P3.7/RD#/A16

18

16

19

17

XTAL1

21

18

ALE/PROG#

33

30

XTAL2

20

19

PSEN#

32

29

PRELIMINARY

9

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