VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
OC-48 16:1 SONET/SDH
MUX with Clock Generator
VSC8163
Pin #
Name
I/O
Level
Description
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
NC
NC
—
—
—
—
—
—
I
—
—
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
Reference clock input select
NC
—
NC
—
NC
—
NC
—
REF_FREQSEL
VCC
TTL
—
—
O
+3.3V typ. Positive power supply
VEE
GND typ.
TTL
Negative power supply
FIFO overflow warning
Negative power supply
FIFO_WARN
VEE
—
—
I
GND typ.
VCC
+3.3V typ. Positive power supply
RESET
NC
TTL
—
Reset to align FIFO Write and Read pointers
—
—
—
—
—
—
—
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
No connect, leave unconnected(1)
NC
—
NC
—
NC
—
NC
—
VCC
+3.3V typ. Positive power supply
VEE
GND typ.
LVPECL
Negative power supply
Low-speed clock output, true. A divide-by-16 version of the
2.48832GHz PLL.
52
53
CLK16O+
CLK16O-
O
O
Low-speed clock output, complement. A divide-by-16 version of the
2.48832GHz PLL.
LVPECL
54
55
56
57
58
59
60
61
62
63
VCC
CLKI+
CLKI-
VEE
D0-
—
I
+3.3V typ. Positive power supply
LVPECL
LVPECL
GND typ.
LVPECL
LVPECL
Low-speed clock input for latching low-speed data, true
I
Low-speed clock input for latching low-speed data, complement
Negative power supply
—
I
Low-speed differential parallel data (MSB)
Low-speed differential parallel data (MSB)
D0+
I
VCC
D1-
—
I
+3.3V typ. Positive power supply
LVPECL
LVPECL
—
Low-speed differential parallel data
D1+
I
Low-speed differential parallel data
No connect, leave unconnected(1)
NC
—
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Page 14
G52216-0, Rev 3.3
01/05/00
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
