PI2PCIE412-D Enhanced, 1.8V, PCIe, 4-Differential Channel, 2:1 Mux/DeMu Switch, w/ Single Enable Features Description 4 Differential Channel, 2:1 Mux/DeMux Pericom Semiconductors PI2PCIE412-D is an 8 to 4 differential channel multiplexer/demultiplexer switch. This solution can PCI Express signal compliance switch 2 full PCI Express lanes to one of two locations. Using Low Bit-to-Bit Skew , 10ps max (between + and - bits) a unique design technique, Pericom has been able to minimize Low Crosstalk: -65dB 10 MHz the impedance of the switch such that the attenuation observed Low Off Isolation: -65dB 10 MHz through the switch is negligible. The unique design technique V Operating Range: +1.5V to +2.0V DD also offers a layout targeted for PCI Express signals, which ESD Tolerance: 8kV HBM I/O 2kV HBM select pin minimizes the channel to channel skew as well as channel to Low channel-to-channel skew, 35ps max channel crosstalk as required by the PCI Express specification. Packaging (Pb-free & Green): 42-contact, TQFN (ZH42) Application Switch a PCIe lane output between two PCI Express lane inputs. Block Diagram Pin Description A B 0 0 1 A B 1 1 1 A B 2 2 1 B A 42 41 40 39 3 1 3 38 B GND 1 0 1 B 0 2 B A 2 37 1 1 B 0 1 2 B B 3 36 2 1 A 2 2 1 B B 3 2 4 35 3 1 GND B 5 34 0 2 B V 4 1 DD A 4 B 6 33 B A 1 2 5 1 2 A 5 32 B A B A 7 2 2 6 6 1 3 B V 8 31 3 2 A B 7 1 7 DD V 9 GND 30 SEL DD B 4 2 B 10 29 4 1 GND B B 5 2 11 28 5 1 A 4 27 B A 12 6 1 B 6 2 5 B V 13 26 7 1 B 7 2 DD B 14 25 4 2 GND B 15 24 5 2 A 6 SEL B 16 23 A 6 2 7 22 B GND 17 7 2 18 19 20 21 Truth Table Function SEL A to B L N N 1 A to B H N N 2 PS8788C 12/07/12 13-0004 1 V V DD DD GND GND V DD V DD GND GNDPI2PCIE412-D Enhanced, 1.8V, PCIe, 4-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 Storage Temperature ....................................................65C to +150C RATINGS may cause permanent damage to the device. This Supply Voltage to Ground Potential ................................0.5V to +2.5V is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the DC Input Voltage .............................................................. 0.5V to V DD operational sections of this specification is not implied. Expo- DC Output Current .......................................................................120mA sure to absolute maximum rating conditions for extended Power Dissipation ...........................................................................0.5W periods may affect reliability. DC Electrical Characteristics for Switching over Operating Range (T = 40C to +85C, V = 1.5V to 2.0V) A DD (1) (2) Paramenter Description Test Conditions Min Typ Max Units V Input HIGH Voltage Guaranteed HIGH level 0.65 x V DD IH 0.35 x 0.5 V V Input LOW Voltage Guaranteed LOW level V DD IL V Clamp Diode Voltage V = Max., I = 18mA 0.7 1.2 DD IN IK I Input HIGH Current V = Max., V = V 5 IH DD IN DD A 5 I Input LOW Current V = Max., V = GND IL DD IN Power Supply Characteristics (1) (2) Parameters Description Test Conditions Min. Typ. Max. Units I Quiescent Power Supply Current V = Max., V = GND or V 200 A CC DD IN DD Dynamic Electrical Characteristics Over the Operating Range (TA= -40 to +85C, VDD = 1.8V10%, GND=0V) (2) Parameter Description Test Conditions Min. Typ. Max. Units X Crosstalk See Fig. 1 for Measurement Setup, f = 10 MHz -65 TALK dB O OFF Isolation See Fig. 2 for Measurement Setup, f = 10 MHz -65 IRR Bandwidth BW 1.4 GHz 3dB Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at V = 1.8V, T = 25C ambient and maximum loading. DD A PS8788C 12/07/12 13-0004 2