Octal E1 Line Interface — LXT381

Datasheet

5

1.0

Pin Assignments and Signal Descriptions

Figure 1. LXT381 144-Pin Low-Profile Quad Flat Package (LQFP) Pin Assignments and

Package Markings

Package Topside Markings

Marking

Definition

Part #

Unique identifier for this product family.

Rev #

Identifies the particular silicon “stepping” — refer to the specification update for additional stepping

information.

Lot #

Identifies the batch.

FPO #

Identifies the Finish Process Order.

TPOS7

ALOS6

RNEG6

RPOS6

RCLK6

TNEG6

TPOS6

TCLK7

TCLK6

RPD

GND

GND

GND

GND

GND

GND

VCCIO0

GNDIO0

VCC0

GND0

TCLK1

TPOS1

TNEG1

RCLK1

RPOS1

RNEG1

ALOS1

TCLK0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

TPOS4

TCLK3

TCLK4

RNEG5

RPOS5

RCLK5

TNEG5

TPOS5

TCLK5

ALOS5

TDI

TDO

TCK

TMS

AT1

AT2

VCCIO1

GNDIO1

VCC1

GND1

GND

GND

GND

GND

GND

NC

NC

TCLK2

TPOS2

TNEG2

RCLK2

RPOS2

RNEG2

ALOS2

TPOS3

108

107

106

105

104

103

102

101

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

75

74

73

TRST

LOOP0

LOOP1

LOOP2

LOOP3

LOOP4

LOOP5

LOOP6

LOOP7

LXT381LE XX

XXXXXX

XXXXXXXX

Part #

LOT #

FPO #

Rev #