© VITESSE SEMICONDUCTOR CORPORATION

Page 11

11/9/99

741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896

VITESSE

SEMICONDUCTOR CORPORATION

Preliminary Datasheet

VSC8131

2.488 Gbit/sec

32:1 SONET/SDH Mux with Clock Generator

G52249-0, Rev. 3.0

NC

37

-

-

Leave Unconnected

NC

38

-

-

Leave Unconnected

VCC

39

PWR

+3.3V

VEE

40

PWR

GND

NC

41

-

-

Leave Unconnected

VEE

42

PWR

GND

VCC

43

PWR

+3.3V

NC

44

-

-

Leave Unconnected

NC

45

-

-

Leave Unconnected

NC

46

-

-

Leave Unconnected

NC

47

-

-

Leave Unconnected

NC

48

-

-

Leave Unconnected

LOL

49

O

TTL

CMU loss of lock

VCC

50

PWR

+3.3V

VEE

51

PWR

GND

PARERR

52

O

TTL

parity error

CK78OUT

53

O

TTL

divide-by-32 clock out

VCC

54

PWR

+3.3V

CK78IN

55

I

TTL

divide-by-32 clock in

NC

56

-

-

Leave Unconnected

VEE

57

PWR

GND

D31

58

I

TTL

parallel data

(LSB)

D30

59

I

TTL

parallel data

VCC

60

PWR

+3.3V

D29

61

I

TTL

parallel data

D28

62

I

TTL

parallel data

NC

63

-

-

Leave Unconnected

VCC

64

PWR

+3.3V

NC

65

-

-

Leave Unconnected

VCC

66

PWR

+3.3V

D27

67

I

TTL

parallel data

D26

68

I

TTL

parallel data

VEE

69

PWR

GND

D25

70

I

TTL

parallel data

D24

71

I

TTL

parallel data

VCC

72

PWR

+3.3V

D23

73

I

TTL

parallel data

Table 4: Package Pin Identification

Signal

Pin

I/O

Level

Pin Description