PI2PCIE2442 PCI Express 2.0, 2-lane Exchange Switch Features Description 8 Differential Channel (2-lane) Exchange Switch Pericom Semiconductors PI2PCIE2442 is a differential exchange switch featuring pass-through pinout. It supports two full PCI PCI Express 2.0 performance, 5.0 Gbps Express lanes operating at 5.0Gbps PCIe 2.0 performance. Low Bit-to-Bit Skew: 10ps (between +/- signals) Low Crosstalk: -28dB 2.5 GHz (5Gbps) With the select control input low, Port A connects to Port B, and Low Insertion Loss: -2.1dB 2.5 GHz (5Gbps) Port C connects to port D for an 8-channel differential pass-though. V Operating Range: +1.5V to +1.8V 10% DD When the select control input is high Port A connects to Port D, ESD Tolerance: 2kV HBM and Port B connects to Port C. Packaging: 42-contact TQFN (ZH42) Truth Table Function SEL OE Ax = Bx L 0 Cx = Dx Ax = Dx H 0 Cx =Bx Ax, Bx, Cx, DX = x 1 Hi-Z Block Diagram Pin Diagram OE SEL A0+ 1 38 B0+ B0+ A0- 2 37 B0- B0- A0+ A0- C0+ 3 36 D0+ C0- 4 35 D0- C0+ D0+ C0- D0- A1+ 5 34 B1+ A1- 6 33 B1- B1+ B1- A1+ C1+ 7 32 D1+ A1- C1- 8 31 D1- GND C1+ D1+ 9 30 VDD SEL C1- D1- 10 29 B2+ A2+ B2+ 28 B2- B2- A2- 11 A2+ A2- 27 D2+ C2+ 12 26 D2- C2- 13 C2+ D2+ C2- D2- 25 B3+ A3+ 14 24 B3- B3+ A3- 15 B3- A3+ 23 D3+ C3+ 16 A3- 22 D3- C3- 17 C3+ D3+ C3- D3- www.pericom.com 03/25/14 14-0034 1 VDD 18 42 VDD OE GND 19 41 VDD 40 VDD 20 21 39 GND GNDPI2PCIE2442 PCI Express 2.0, 2-lane Exchange Switch 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 Output Enable, active low. When OE = 0 the device I/O is enabled. When OE =1, 41 OE I all I/O are high impedance Operation mode Select 9 SEL I (when SEL=0: AB, CD, when SEL=1: AD, CB) 18, 20, 30, 40, 42 V Pwr 1.5V to 1.8V (0.1V) Positive Supply Voltage DD 19, 21, 39, Center GND Pwr Power ground Pad www.pericom.com 03/25/14 14-0034 2