PI3PCIE3422 3.3V, PCI Express 3.0 2-Lane, (4-Channel), Differential Mux/Demux with Bypass Features Description 8 Differential Channel SPST switch with Mux/DeMux option Pericom semiconductors PI3PCIE3422 is an 8 to 4 channel differential multiplexer/demultiplexer featuring 8-channel pass- PCIe 3.0 performance through. It supports two full PCIe lanes at 8.0Gbps PCIe 3.0 Bi-directional operation performance. Low Bit-to-Bit Skew: 10ps (between signals) Low Crosstalk: -50dB 4.0GHz (8Gbps) With the select control input low Port A connects to Port B, and Low Off Isolation: -21dB 4GHz Port C connects to port D for an 8-channel differential pass- though. When the select control input is high Port A connects Low Insertion Loss: -1.8dB 4.0GHz (8Gbps) to Port D, and Port B and Port C are in a high-impedance state. Return Loss: -15dB 4GHz e mTh ux/demux function is between Port A and Ports B or D as V Operating Range: 3.3V 10% DD determined by the select input control. ESD Tolerance: 2kV HBM Packaging (Pb-free & Green): 42-contact, TQFN (ZH42) Truth Table Function SEL OE Pin Diagram (Top-side view) Ax = Bx L 0 Cx = Dx Ax = Dx H 0 B = C = Hi-Z A0+ 1 38 B0+ Ax, Bx, Cx, Dx = Hi-Z (disconnected) x 1 A0- 2 37 B0- Block Diagram C0+ 3 36 D0+ C0- 4 35 D0- OE A1+ 5 34 B1+ SEL A1- 6 33 B1- B0+ B0- A0+ C1+ 7 32 D1+ A0- C1- 8 31 D1- C0+ D0+ GND C0- D0- 9 30 VDD SEL B1+ 10 29 B2+ A2+ B1- A1+ A1- 28 B2- A2- 11 27 D2+ C2+ 12 C1+ D1+ C1- D1- 26 D2- C2- 13 B2+ 25 B3+ A3+ 14 B2- A2+ A2- 24 B3- A3- 15 23 D3+ C2+ C3+ 16 D2+ C2- D2- 22 D3- C3- 17 B3+ B3- A3+ A3- C3+ D3+ C3- D3- All trademarks are property of their respective owners. www.pericom.com P-0.3 12/12/12 13-0011 1 VDD 18 42 VDD OE GND 19 41 VDD 20 40 VDD 21 39 GND GNDPI3PCIE3422 3.3V, PCI Express 3.0 2-Lane, Differential Mux/Demux with Bypass Pin Description Pin Pin Name I/O Description 1 A0+ I/O Signal I/O, Channel 0, Port A 2 A0 5 A1+ I/O Signal I/O, Channel 1, Port A 6 A1 10 A2+ I/O Signal I/O, Channel 2, Port A 11 A2 14 A3+ I/O Signal I/O, Channel 3, Port A 15 A3 38 B0+ I/O Signal I/O, Channel 0, Port B 37 B0 34 B1+ I/O Signal I/O, Channel 1, Port B 33 B1 29 B2+ I/O Signal I/O, Channel 2, Port B 28 B2 25 B3+ I/O Signal I/O, Channel 3, Port B 24 B3 3 C0+ I/O Signal I/O, Channel 0, Port C 4 C0 7 C1+ I/O Signal I/O, Channel 1, Port C 8 C1 12 C2+ I/O Signal I/O, Channel 2, Port C 13 C2 16 C3+ I/O Signal I/O, Channel 3, Port C 17 C3 36 D0+ I/O Signal I/O, Channel 0, Port D 35 D0 32 D1+ I/O Signal I/O, Channel 1, Port D 31 D1 27 D2+ I/O Signal I/O, Channel 2, Port D 26 D2 23 D3+ I/O Signal I/O, Channel 3, Port D 22 D3 41 OE I Output Enable, active low. When OE = 0 the device I/O is enabled. When OE =1, all I/O are high impedance 9 SEL I Operation mode Select (when SEL=0: AB, CD, when SEL=1: AD, B + C = Hi-Z) 18, 20, 30, 40, 42 V Pwr 3.3V 10% Positive Supply Voltage DD 19, 21, 39, Center Pad GND Pwr Power ground All trademarks are property of their respective owners. www.pericom.com P-0.3 12/12/12 13-0011 2