VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
2.488Gb/s SONET/SDH
STS-48/STM-16 Section Terminator
VSC8151
Table 20: Pin Identification
Signal
Pin
I/O
Level
Pin Description
NC
NC
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
—
—
Leave Unconnected
Leave Unconnected
Leave Unconnected
Leave Unconnected
—
—
NC
—
—
NC
—
—
VMM
PWR
+2.0V
GND
+3.3V
TTL
VEE
PWR
VCC
PWR
EQULOOP
NC
I
RXPIN[15:0] parallel bus input enable. Tie low to use serial input
Leave Unconnected
—
—
NC
—
—
Leave Unconnected
RXPIN15
RXPIN14
RXPIN13
RXPIN12
RXPIN11
RXPIN10
VCC
I
PECL
PECL
PECL
PECL
PECL
PECL
+3.3V
+2.0V
PECL
PECL
GND
PECL
PECL
+2.0V
PECL
PECL
+2.0V
PECL
PECL
+3.3V
PECL
PECL
+2.0V
—
16 bit PECL input bus
I
16 bit PECL input bus
I
16 bit PECL input bus
I
16 bit PECL input bus
I
16 bit PECL input bus
I
16 bit PECL input bus
PWR
VMM
PWR
RXPIN9
RXPIN8
VEE
I
16 bit PECL input bus
16 bit PECL input bus
I
PWR
RXPIN7
RXPIN6
VMM
I
16 bit PECL input bus
16 bit PECL input bus
I
PWR
RXPIN5
RXPIN4
VMM
I
16 bit PECL input bus
16 bit PECL input bus
I
PWR
RXPIN3
RXPIN2
VCC
I
16 bit PECL input bus
16 bit PECL input bus
I
PWR
I
RXPIN1
RXPIN0
VMM
16 bit PECL input bus
16 bit PECL input bus
I
PWR
—
NC
Leave Unconnected
RXFPOUT
VEE
O
TTL
Received Frame Pointer (Pulse High)
PWR
O
GND
TTL
SEF
Severely Errored Frame Indicator (Active High)
Receive Overhead Output Clock
RXOHCLK
O
TTL
G52225-0, Rev. 2.9
12/1/99
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 23
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