GND
V
DD
GND
V
DD
PI2PCIE212
1.8V, PCIe, 2 Differential Channel,
2:1 Mux/DeMux Switch w/ Single Enable
Features Description
2 Differential Channel, 2:1 Mux/DeMux Pericom Semiconductors PI2PCIE212 is a 4 to 2 differential
channel multiplexer/demultiplexer switch. The PI2PCIE family of
PCI Express signal compliance
switch solutions is fully compliant with PCIe signals at 2.5Gbps.
Low Bit-to-Bit Skew
PI2PCIE212 can switch PCIe signals up to a maximum length of
Low Crosstalk: -60dB@10MHz
16 inches. Due to its low bit-to-bit skew, high channel-to-channel
Low Off Isolation: -65dB@10MHz
noise isolation and high bandwidth, this product is ideal for PCI
V Operating Range: +1.5V to +2.0V
DD
Express switching.
ESD Tolerance >2kV HBM
Packaging (Pb-free & Green):
28 contact TQFN (ZH) Application
Switch a PCI Express lane output between two PCI Express lane
inputs
Block Diagram Pin Description
B
A
0 1
0
A B
1 1 1
28 27 26 25
GND 1 0B1
24
A
2 B
2 1
SEL 2 1B1
A 23
3 B
3 1
V 3 2B1
DD 22
B
0 2
A0 4 3B1
21
B
1 2
A1 5 GND
20
GND
B A2 6 V
2 2 19 DD
B A3 7 0B2
3 2 18
V 8 1B2
DD 17
SEL
V 9 2B2
16
DD
GND 3B2
10
15
11 12 13 14
Truth Table
Function SEL
A to B L
n n 1
A to B H
n n 2
13-0022 PS8789 12/18/12
1
V
DD
GND
V
DD
GNDPI2PCIE212
1.8V, PCIe, 2 Differential Channel,
2:1 Mux/DeMux Switch w/ Single Enable
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Note: Stresses greater than those listed under MAXIMUM RATINGS
Storage Temperature ......................................... 65C to +150C
may cause permanent damage to the device. This is a stress rating only
Supply Voltage to Ground Potential ....................0.5V to +2.5V
and functional operation of the device at these or any other conditions
DC Input Voltage ................................................. 0.5V to +V
DD
above those indicated in the operational sections of this specification
DC Output Current ........................................................... 120mA
is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
Power Dissipation ................................................................ 0.5W
DC Electrical Characteristics for Switching over Operating Range
(T = 40C to +85C, V = 1.5V to 2.0V)
A DD
Typ.
Paramenter Description Test Conditions Min. Max. Units
(2)
V Input HIGH Voltage Guaranteed HIGH level 0.65 x V - -
IH DD
V Input LOW Voltage Guaranteed LOW level -0.5 - 0.35 x V V
IL DD
V Clamp Diode Voltage V = Max., I = 18mA - -0.7 -1.2
IK DD IN
I Input HIGH Current V = Max., V = V - - 5
IH DD IN DD
A
I Input LOW Current V = Max., V = GND - - 5
IL DD IN
13-0022 PS8789 12/18/12
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