P87C552 datasheet(4/74 Pages) PHILIPS

Part #	P87C552

Description	80C51 8-bit microcontroller 8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, low voltage 2.7V.5.5V, low power

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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4 / 74 page

Philips Semiconductors

Preliminary specification

P87C552

80C51 8-bit microcontroller

8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM,

capture/compare, high I/O, low voltage (2.7V–5.5V), low power

1999 Mar 30

4

PIN CONFIGURATIONS

Plastic Leaded Chip Carrier pin functions

Function

1

P5.0/ADC0

2VDD

3

STADC

4

PWM0

5

PWM1

6EW

7

P4.0/CMSR0

8

P4.1/CMSR1

9

P4.2/CMSR2

10

P4.3/CMSR3

11

P4.4/CMSR4

12

P4.5/CMSR5

13

P4.6/CMT0

14

P4.7/CMT1

15

RST

16

P1.0/CT0I

17

P1.1/CT1I

18

P1.2/CT2I

19

P1.3/CT3I

20

P1.4/T2

21

P1.5/RT2

22

P1.6/SCL

23

P1.7/SDA

Function

24

P3.0/RxD

25

P3.1/TxD

26

P3.2/INT0

27

P3.3/INT1

28

P3.4/T0

29

P3.5/T1

30

P3.6/WR

31

P3.7/RD

32

NC

33

NC

34

XTAL2

35

XTAL1

36

VSS

37

VSS

38

NC

39

P2.0/A08

40

P2.1/A09

41

P2.2/A10

42

P2.3/A11

43

P2.4/A12

44

P2.5/A13

45

P2.6/A14

46

P2.7/A15

Function

47

PSEN

48

ALE/PROG

49

EA/VPP

50

P0.7/AD7

51

P0.6/AD6

52

P0.5/AD5

53

P0.4/AD4

54

P0.3/AD3

55

P0.2/AD2

56

P0.1/AD1

57

P0.0/AD0

58

AVref–

59

AVref+

60

AVSS

61

AVDD

62

P5.7/ADC7

63

P5.6/ADC6

64

P5.5/ADC5

65

P5.4/ADC4

66

P5.3/ADC3

67

P5.2/ADC2

68

P5.1/ADC1

SU00208

91

61

60

44

43

27

26

10

PLASTIC

LEADED

CHIP CARRIER

LOGIC SYMBOL

ADC0-7

CMT0

CMT1

CMSR0-5

RST

EW

XTAL1

XTAL2

EA/VPP

ALE/PROG

PSEN

AVref+

AVref–

STADC

PWM0

PWM1

LOW ORDER

ADDRESS AND

DATA BUS

CT0I

CT1I

CT2I

CT3I

T2

RT2

SCL

SDA

RxD/DATA

TxD/CLOCK

INT0

INT1

T0

T1

WR

RD

VSS

VDD

AVSS

AVDD

HIGH ORDER

ADDRESS AND

DATA BUS

SU00210

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