VITESSE

SEMICONDUCTOR CORPORATION

Preliminary Data Sheet

VSC8150

2.488Gb/s SONET/SDH

Overhead Monitor

Page 16

© VITESSE SEMICONDUCTOR CORPORATION

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

10/12/98

G52186-0, Rev. 3.0

VCC

38

PWR

+3.3V

VCC

39

PWR

+3.3V

TEST

40

I

GND

Test Input

TEST

41

I

GND

Test Input

VMM

42

PWR

+2.0V

RESET

43

I

TTL

Active High (Tie to GND)

DISDSCRM

44

I

TTL

Descrambler Disable

VEE

45

PWR

GND

TEST

46

I

GND

Test Input

TEST

47

I

GND

Test Input

VCC

48

PWR

+3.3V

VCC

49

PWR

+3.3V

NC

50

−−

Leave Unconnected

TEST

51

I

GND

Test Input

VCC

52

PWR

+3.3V

VMM

53

PWR

+2.0V

VCC

54

PWR

+3.3V

VCC

55

PWR

+3.3V

NC

56

—

NC

Test Output

NC

57

—

NC

Test Output

VEE

58

PWR

GND

SOHOUT0

59

O

TTL

Overhead Output Bus

SOHOUT1

60

O

TTL

Overhead Output Bus

VEE

61

PWR

GND

VCC

62

PWR

+3.3V

SOHOUT2

63

O

TTL

Overhead Output Bus

SOHCLK

64

O

TTL

Overhead Output Clock

VEE

65

PWR

GND

VCC

66

PWR

+3.3V

SOHOUT3

67

O

TTL

Overhead Output Bus

SOHOUT4

68

O

TTL

Overhead Output Bus

VEE

69

PWR

GND

SOHOUT5

70

O

TTL

Overhead Output Bus

SOHOUT6

71

O

TTL

Overhead Output Bus

VEE

72

PWR

GND

VCC

73

PWR

+3.3V

VMM

74

PWR

+2.0V

VCC

75

PWR

+3.3V

Table 14: Pin Definitions

Signal

Pin

I/O

Level

Pin Description