PI2PCIE412-D Datasheet, PDF (1/9 Pages) Pericom Semiconductor Corporation – Enhanced, 1.8V, PCI Express Compliant, 4-Differential Channel, 2:1 Mux/DeMux Switch, w/ Single Enable

PI2PCIE412-D
Enhanced, 1.8V, PCI Express Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch,
w/ Single Enable
Features
• 4 Differential Channel, 2:1 Mux/DeMux
• PCI Express signal compliance
• Low Bit-to-Bit Skew , 10ps max (between '+' and '-' bits)
• Low Crosstalk: -65dB@10 MHz
• Low Off Isolation: -65dB@10 MHz
• V_CC Operating Range: +1.5V to +2.0V
• ESD Tolerance: 8kV HBM I/O; 2kV HBM select pin
• Low channel-to-channel skew, 35ps max
• Packaging (Pb-free & Green):
– 42-contact, TQFN (ZH42)
Description
Pericom Semiconductor’s PI2PCIE412-D is an 8 to 4 differential
channel multiplexer/demultiplexer switch. This solution can
switch 2 full PCI Express lanes to one of two locations. Using
a unique design technique, Pericom has been able to minimize
the impedance of the switch such that the attenuation observed
through the switch is negligible. The unique design technique
also offers a layout targeted for PCI Express signals, which
minimizes the channel to channel skew as well as channel to
channel crosstalk as required by the PCI Express specification.
Application
Switch a PCI-Express lane output between two PCI Express lane
inputs.
Block Diagram
A₀
A₁
A₂
A₃
A₄
A₅
A₆
A₇
SEL
Truth Table
Function
A_N to _NB₁
A_N to _NB₂
0^B1
1^B1
2^B1
3B1
0^B2
1^B2
2^B2
3B2
4^B1
5^B1
6^B1
7^B1
4^B2
5^B2
6^B2
7^B2
SEL
L
H
Pin Description
GND
42 41 40 39
1
38
0^B1
A₀ 2
A₁ 3
GND 4
37 1B1
36 2B1
35 3B1
V_DD 5
A₂ 6
A₃ 7
V_DD 8
SEL 9
GND
34 0B2
33 1B2
32 2B2
31 3B2
30 V_DD
GND 10
29 4B1
A₄ 11
A₅ 12
V_DD 13
GND 14
28 5B1
27 6B1
26 7B1
25 4B2
A₆ 15
A₇ 16
GND 17
24 5B2
23 ₆B₂
22 ₇B₂
18 19 20 21
1
PS8788B
01/23/06