VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
1Gb/s 16-Channel
Drive-Side Deskew IC
VSC6250
Pin #
Signal Name
Signal Type
Levels
Description
76
77
DOUT13
DOUT13N
VTT
O
O
ECL
ECL
-2.0V
ECL
ECL
0V
Output Channel 13, True
Output Channel 13, Complementary
Power Supply
78
—
O
79
DOUT12
DOUT12N
VDD
Output Channel 12, True
Output Channel 12, Complementary
Ground
80
O
81
—
O
82
DOUT11
DOUT11N
VTT
ECL
ECL
-2.0V
ECL
ECL
0V
Output Channel 11, True
Output Channel 11, Complementary
Power Supply
83
O
84
—
O
85
DOUT10
DOUT10N
VDD
Output Channel 10, True
Output Channel 10, Complementary
Ground
86
O
87
—
O
88
DOUT9
DOUT9N
VTT
ECL
ECL
-2.0V
ECL
ECL
0V
Output Channel 9, True
Output Channel 9, Complementary
Power Supply
89
O
90
—
O
91
DOUT8
DOUT8N
VDD
Output Channel 8, True
Output Channel 8, Complementary
Ground
92
O
93
—
—
—
—
—
—
—
—
DC
I
94
VTT
-2.0V
0V
Power Supply
95
VDD
Ground
96
VTT
-2.0V
0V
Power Supply
97
VDD
Ground
98
NC
—
Not Connected
99
NC
—
Not Connected
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
VTT
-2.0V
-1.32V
ECL
0V
Power Supply
VREF
ECL Reference Voltage
Write Delay Register
Ground
CALENN
VDD
—
I
DATA0
DATA1
VTT
ECL
ECL
0V
Delay Bit 0
I
Delay Bit 1
—
I
Power Supply
DATA2
DATA3
DATA4
VDD
ECL
ECL
ECL
0V
Delay Bit 2
I
Delay Bit 3
I
Delay Bit 4
—
—
—
—
—
Ground
VDD
0V
Ground
VDD
0V
Ground
VTT
-2.0V
-2.0V
Power Supply
VTT
Power Supply
G52197-0, Rev. 4.0
8/19/00
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 13
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