AT89S52 데이터 시트보기 (PDF) - Atmel Corporation

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AT89S52

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

Atmel Corporation 

2. Pin Configurations

2.1 40-lead PDIP

(T2) P1.0 1

(T2 EX) 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

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

(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)

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 AT89S52

1919D–MICRO–6/08

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