VSC7124 Datasheet, PDF (5/8 Pages) Vitesse Semiconductor Corporation – Quad Port Bypass Circuit

VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7124
Package Pin Descriptions
Figure 3: Pin Diagram
Quad Port Bypass Circuit
VSS
VDD
I1-
I1+
VDDP1
O1-
O1+
VSS
I0-
I0+
VSS
43
1
41
39
37
35 ₃₃
3
31
5
29
VSC7124
7
27
9
25
11
23
13 15 17 19 21
VSS
VDD
O4+
O4-
VDDP4
I4+
I4-
VDDP0
O0-
O0+
N/C
Table 1: Pin Identifications
Pin #
4, 3, 41, 40
35, 34, 28, 27
10, 9
15, 16,
17, 18
14
7, 6, 44, 43
38, 37, 31, 30
24, 25
2, 21, 32
5
42
36
29
26
12, 13, 20, 22, 23
1, 8, 11, 19, 33, 39
Name
I1+, I1-, I2+, I2-
I3+, I3-, I4+, I4-
I0+, I 0-
SEL1, SEL2
SEL3, SEL4
SEL0
O1+, O1-, O2+, O2-
O3+, O3-, O4+, O4-
O0+, O0-
VDD
VDDP1
VDDP2
VDDP3
VDDP4
VDDP0
N/C
VSS
Description
INPUT - Differential, Internally Biased to V_DD/2
Ix+/Ix- is the serial input to PBCx.
INPUT - TTL
Port Bypass Mux SELect lines. A HIGH selects Ix. A LOW selects the
output of the previous internal device.
OUTPUT - Differential
Ox+/Ox- is the serial output from PBCx.
Digital Logic Power Supply.
Power Supply (3.3V) for O1+/-. If unused, connect to VSS.
Power Supply (3.3V) for O2+/-. If unused, connect to VSS.
Power Supply (3.3V) for O3+/-. If unused, connect to VSS.
Power Supply (3.3V) for O4+/-. If unused, connect to VSS.
Power Supply (3.3V) for O0+/-. If unused, connect to VSS
Not Connected
Ground
G52293-0, Rev 2.3
05/07/01
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