VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
1Gb/s 16-Channel
Drive-Side Deskew IC
VSC6250
Table 6: Pin Identifications
Pin #
Signal Name
Signal Type
Levels
Description
1
VTT
VDD
—
—
O
-2.0V
0V
Power Supply
Ground
2
3
DOUT7
DOUT7N
VDD
ECL
ECL
0V
Output Channel 7, True
4
O
Output Channel 7, Complementary
Ground
5
—
O
6
DOUT6
DOUT6N
VTT
ECL
ECL
-2.0V
ECL
ECL
0V
Output Channel 6, True
Output Channel 6, Complementary
Power Supply
7
O
8
—
O
9
DOUT5
DOUT5N
VDD
Output Channel 5, True
Output Channel 5, Complementary
Power Supply
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
37
O
—
O
DOUT4
DOUT4N
VDD
ECL
ECL
0V
Output Channel 4, True
Output Channel 4, Complementary
Ground
O
—
I
RCK
ECL
ECL
0V
250 MHz Reference Clock, True
250 MHz Reference Clock, Complementary
Ground
RCKN
VDD
I
—
—
—
—
O
VTT
-2.0V
-2.0V
-2.0V
ECL
ECL
0V
Power Supply
VTT
Power Supply
VTT
Power Supply
DOUT3
DOUT3N
VDD
Output Channel 3, True
Output Channel 3, Complementary
Ground
O
—
O
DOUT2
DOUT2N
VDD
ECL
ECL
0V
Output Channel 2, True
Output Channel 2, Complementary
Ground
O
—
O
DOUT1
DOUT1N
VDD
ECL
ECL
0V
Output Channel 1, True
Output Channel 1, Complementary
Ground
O
—
O
DOUT0
DOUT0N
VTT
ECL
ECL
-2.0V
-2.0V
-2.0V
0V
Output Channel 0, True
Output Channel 0, Complementary
Power Supply
O
—
—
—
—
I
VTT
Power Supply
VTT
Power Supply
VDD
Ground
ADR4
ADR3
ECL
ECL
Address Bit 4 for Vernier Selection
Address Bit 3 for Vernier Selection
I
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 11
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