AT89S51-24AI 데이터 시트보기 (PDF) - Atmel Corporation

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AT89S51-24AI

8-bit Microcontroller with 4K Bytes In-System Programmable Flash

Atmel Corporation 

2. Pin Configurations

2.1

40-lead PDIP

P1.0 1

P1.1 2

P1.2 3

P1.3 4

P1.4 5

(MOSI) P1.5 6

(MISO) P1.6 7

(SCK) P1.7 8

RST 9

(RXD) P3.0 10

(TXD) P3.1 11

(INT0) P3.2 12

(INT1) P3.3 13

(T0) P3.4 14

(T1) P3.5 15

(WR) P3.6 16

(RD) P3.7 17

XTAL2 18

XTAL1 19

GND 20

40 VCC

39 P0.0 (AD0)

38 P0.1 (AD1)

37 P0.2 (AD2)

36 P0.3 (AD3)

35 P0.4 (AD4)

34 P0.5 (AD5)

33 P0.6 (AD6)

32 P0.7 (AD7)

31 EA/VPP

30 ALE/PROG

29 PSEN

28 P2.7 (A15)

27 P2.6 (A14)

26 P2.5 (A13)

25 P2.4 (A12)

24 P2.3 (A11)

23 P2.2 (A10)

22 P2.1 (A9)

21 P2.0 (A8)

2.2 44-lead TQFP

(MOSI) P1.5 1

(MISO) P1.6 2

(SCK) P1.7 3

RST 4

(RXD) P3.0 5

NC 6

(TXD) P3.1 7

(INT0) P3.2 8

(INT1) P3.3 9

(T0) P3.4 10

(T1) P3.5 11

33 P0.4 (AD4)

32 P0.5 (AD5)

31 P0.6 (AD6)

30 P0.7 (AD7)

29 EA/VPP

28 NC

27 ALE/PROG

26 PSEN

25 P2.7 (A15)

24 P2.6 (A14)

23 P2.5 (A13)

2.3 44-lead PLCC

(MOSI) P1.5 7

(MISO) P1.6 8

(SCK) P1.7 9

RST 10

(RXD) P3.0 11

NC 12

(TXD) P3.1 13

(INT0) P3.2 14

(INT1) P3.3 15

(T0) P3.4 16

(T1) P3.5 17

39 P0.4 (AD4)

38 P0.5 (AD5)

37 P0.6 (AD6)

36 P0.7 (AD7)

35 EA/VPP

34 NC

33 ALE/PROG

32 PSEN

31 P2.7 (A15)

30 P2.6 (A14)

29 P2.5 (A13)

2.4 42-lead PDIP

RST 1

(RXD) P3.0 2

(TXD) P3.1 3

(INT0) P3.2 4

(INT1) P3.3 5

(T0) P3.4 6

(T1) P3.5 7

(WR) P3.6 8

(RD) P3.7 9

XTAL2 10

XTAL1 11

GND 12

PWRGND 13

(A8) P2.0 14

(A9) P2.1 15

(A10) P2.2 16

(A11) P2.3 17

(A12) P2.4 18

(A13) P2.5 19

(A14) P2.6 20

(A15) P2.7 21

42 P1.7 (SCK)

41 P1.6 (MISO)

40 P1.5 (MOSI)

39 P1.4

38 P1.3

37 P1.2

36 P1.1

35 P1.0

34 VDD

33 PWRVDD

32 P0.0 (AD0)

31 P0.1 (AD1)

30 P0.2 (AD2)

29 P0.3 (AD3)

28 P0.4 (AD4)

27 P0.5 (AD5)

26 P0.6 (AD6)

25 P0.7 (AD7)

24 EA/VPP

23 ALE/PROG

22 PSEN

2

AT89S51

2487C–MICRO–03/05

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