VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
1.6 Gb/s 16X32
Crosspoint Switch
VSC850
Name
Pin #
I/O
Level
Description
N/C
N/C
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
No connection
No connection
No connection
+3.3V power supply
Serial data out
Serial data out
Ground
N/C
VTTL
Z31
PWR
O
+3.3V
ECL
ECL
GND
GND
ECL
ECL
GND
ECL
ECL
-2V
ZN31
VCC
VCC
Z30
O
PWR
PWR
O
Ground
Serial data out
Serial data out
Ground
ZN30
VCC
Z29
O
PWR
O
Serial data out
Serial data out
-2.0V power supply
Serial data out
Serial data out
+3.3V power supply
Serial data out
Serial data out
Ground
ZN29
VTT
Z28
O
PWR
O
ECL
ECL
+3.3V
ECL
ECL
GND
ECL
ECL
-2V
ZN28
VTTL
Z27
O
PWR
O
ZN27
VCC
Z26
O
PWR
O
Serial data out
Serial data out
-2.0V power supply
Serial data out
Serial data out
Ground
ZN26
VTT
Z25
O
PWR
O
ECL
ECL
GND
ECL
ECL
GND
GND
ECL
ECL
GND
ECL
ZN25
VCC
Z24
O
PWR
O
Serial data out
Serial data out
Ground
ZN24
VCC
VCC
Z23
O
PWR
PWR
O
Ground
Serial data out
Serial data out
Ground
ZN23
VCC
Z22
O
PWR
O
Serial data out
G52152-0 Rev. 4.0
6/4/99
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 11
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