VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
1.6 Gb/s 16 x 32
Crosspoint Switch
VSC850
Name
Pin #
I/O
Level
Description
ZN22
VTT
Z21
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
O
ECL
-2V
Serial data out
-2.0V power supply
Serial data out
Serial data out
Ground
PWR
O
ECL
ECL
GND
ECL
ECL
+3.3V
ECL
ECL
-2V
ZN21
VCC
Z20
O
PWR
O
Serial data out
Serial data out
+3.3V power supply
Serial data out
Serial data out
-2.0V power supply
Serial data out
Serial data out
Ground
ZN20
VTTL
Z19
O
PWR
O
ZN19
VTT
Z18
O
PWR
O
ECL
ECL
GND
ECL
ECL
GND
GND
ECL
ECL
+3.3V
TTL
TTL
TTL
TTL
TTL
TTL
GND
TTL
ZN18
VCC
Z17
O
PWR
O
Serial data out
Serial data out
Ground
ZN17
VCC
VCC
Z16
O
PWR
PWR
Ground
O
Serial data out
Serial data out
+3.3V power supply
Input address
Input address
Input address
Input address
Input address
Input address
Ground
ZN16
VTTL
D0
O
PWR
I
D1
I
D2
I
D3
I
D4
I
D5
I
PWR
I
VCC
D6
Input address
No connection
-2.0V power supply
No connection
No connection
Ground
N/C
VTT
N/C
PWR
PWR
-2V
N/C
VCC
GND
Page 12
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
G52152-0 Rev. 4.0
6/4/99
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
