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PI2PCIE2422 PCI Express Gen II, 2-lane (4-channel), Differential Mux/Demux with Bypass
Features
• 8 Differential Channel SPST switch with Mux/DeMux option • PCI Express Gen II performance • Low Bit-to-Bit Skew: 10ps (between +/- signals) • Low Crosstalk: -35dB @ 3.0 GHz • Low Off Isolation: -26db @ 3.0 GHz www.DataSheet4U.com • VCC Operating Range: +1.5V to +2.0V • ESD Tolerance >2kV HBM • Packaging (Pb-free & Green): 42-contact TQFN (ZH42)
Description
Pericom semiconductor’s PI2PCIE2422 is an 8 to 4 channel differential multiplexer/demultiplexer featuring 8-channel passthrough. It supports two full PCI Express lanes at 5.0Gbps Gen II performance. With the select control input low Port A connects to Port B, and Port C connects to port D for an 8-channel differential pass-though. When the select control input is high Port A connects to Port D, and Port B and Port C are in a high-impedance state. The mux/demux function is between Port A and Ports B or D as determined by the select input control.
Truth Table
Function Ax = Bx Cx = Dx Ax = Dx B = C = Hi-Z SEL L H
Block Diagram
SEL
Pin Diagram
GND GND VCC VCC
A0
A0 A1 C0 C1 B0 B1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
B0 B1 D0 D1 B2 B3 D2 D3 VCC B4 B5 D4 D5 B6 B7 D6 D7
42
41
40
39
A1 C0 C1
D0 D1 B2 B3
A2 A3 C2 C3
A2 A3 C2 C3
D2 D3 B4 B5
SEL A4
A4 A5 C4 C5
A5 C4
D4 D5 B6 B7
C5 A6 A7 C6 C7
A6 A7 C6 C7
18
19
20
21
17
22
D6 D7
VCC
GND
VCC
GND
07-0222
1
PS8871C
10/03/07
PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Pin Description
Pin # 1, 2 3, 4 5, 6 7, 8 10, 11 12, 13 www.DataSheet4U.com 14, 15 16, 17 22, 23 24, 25 26, 27 28,29 31, 32 33, 34 35, 36 37, 38 9 18, 20, 30, 40, 42 19, 21, 39, 41 Pin Name A0, A1 C0, C1 A2, A3 C2, C3 A4, A5 C4, C5 A6, A7 C6, C7 D7, D6 B7, B6 D5, D4 B5, B4 D3, D2 B3, B2 D1, D0 B1, B0 SEL VCC GND I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I Pwr Pwr Description Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Signal I/O (typically a differential pair) Operation mode Select (when SEL=0: A→B, C→D, when SEL=1: A→D, B & C=Hi-Z) 1.8V positive supply voltage Power ground
07-0222
2
PS8871C
10/03/07
PI2PCIE2422 PCI Express Gen II Compliant, 8-Differential Channel Switch with 8:4 Mux/DeMux Option Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature ....................................................... –65°C to +150°C Supply Voltage to Ground Potential................................... –0.5V to +2.5V DC Input Voltage .................................................................. –0.5V to VCC DC Output Current.......................................................................... 120mA Power Dissipation .............................................................................. 0.5W
www.DataSheet4U.com
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Electrical Characteristics for Switching over Operating Range (TA = –40°C to +85°C, VCC = 1.5V to 2.0V)
Paramenter VIH VIL VIK IIH IIL RON CON(AB) Description Input HIGH Voltage Input LOW Voltage Clamp Diode Voltage Input HIGH Current Input LOW Current On Resistance Capacitance on A/B, C/D Test Conditions Guaranteed HIGH level Guaranteed LOW level VCC = Max., IIN = –18mA VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., VIN = 1.3V, IIN = 40mA VIN = 0, VCC = 1.8V 3.0 Min 0.65 x VCC –0.5 –0.7 0.35 x VCC –1.2 ±5 ±5 10 μA Ohm pF V Typ(1) Max Units
Note: 1. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading.
Power Supply Characteristics
Parameters ICC Description Quiescent Power Supply Current Test Conditions(1) VCC = Max., VIN = GND or VCC Min. Typ.(2) 200 Max. Units μA
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 1.8V, TA = 25°C ambient and maximum loading.
Dynamic Electrical Characteristics Over the Opera.