PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion 20-Bit, 2-Port, Bus Switch Features Description Near-Zero propagation delay Pericom Semiconductors PI3C32X384, is a 2.5V or 3.3Volt, highbandwidth 20-bit, 2-port bus switches designed with a low 5-ohm switches connect inputs to outputs (PI3C32X384) Onresistance allowing inputs to be connected directly to out- High Bandwidth Operation (>400 MHz) puts. e Th bus switch creates no additional propagational delay Permits Hot Insertion or additional ground bounce noise. e Th switches are turned ON by the Bus Enable (BE) input signal. Four bus enable signals are 5V I/O Tolerant provided, one for each of the upper and lower five bits of the two 2.5V Supply Voltage Operation 10-bit buses. Packaging (Pb-free & Green): 48-pin 150-mil wide plastic BQSOP (B) Applications Pin Configuration High Bandwidth Data switching Hot Docking BEA 1 48 VCC B0 2 47 B19 Block Diagram A0 3 46 A19 A1 4 45 A18 A0 B0 A5 B5 B1 5 44 B18 B2 6 43 B17 A4 B4 A9 B9 A2 7 42 A17 A3 8 41 A16 A15 B15 A10 B10 B3 9 40 B16 B4 10 39 B15 A19 B19 A14 B14 A4 11 38 A15 GND 12 37 BEB BEA BEC 13 36 VCC BEB B5 14 35 B14 A5 15 34 A14 BEC A6 16 33 A13 BED B6 17 32 B13 B7 18 31 B12 (1) A7 19 30 A12 Truth Table A8 20 29 A11 Function BEA BEB B0-B4 B5-B9 B8 21 28 B11 B9 22 27 B10 Disconnect H H Hi-Z Hi-Z A9 23 26 A10 Connect L H A4-A0 Hi-Z GND 24 25 BED Connect H L Hi-Z A19-A15 Connect L L A4-A0 A19-A15 Pin Description Function BEC BED B9-B5 B14-B10 Pin Name Description Disconnect H H Hi-Z Hi-Z BEX Bus Enable Input (Active LOW) Connect L H A9-A5 Hi-Z A19 - A0 Bus A Connect H L Hi-Z A14-A10 B19 - B0 Bus B Connect L L A9-A5 A14-A10 Note: GND Ground 1. H = High Voltage Level, X = Dont Care, Power V CC L = Low Voltage Level, Hi-Z = High Impedance All trademarks are property of their respective owners. www.pericom.com PS8430D 09/30/10 11-0008 1PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch Absolute Maximum Ratings Parameter Min. Max. Units o Storage Temperature -65 150 C o Ambient Temperature with Power Applied -40 85 C Supply Voltage to Ground Potential -0.5 4.6 V DC Input Voltage -0.5 5.5 V DC Output Current - 120 mA Power Dissipation - 0.5 W Stress beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. DC Electrical Characteristics (Over the Operating Range, T = 40C to +85C, V = 3.3V 10%) A CC (1) (2) Parameters Description Test Conditions Min Typ Max Units V Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 V IH V Input LOW Voltage Guaranteed Logic LOW Level -0.5 0.8 V IL I Input HIGH Current V = Max., V = V 1 IH CC IN CC I Input LOW Current V = Max., V = GND 1 A IL CC IN I High Impedance Output Current 0 A, B V 1 OZH CC Clamp Diode Voltage -0.73 -1.2 V V V = Min., I = 18 mA IK CC IN V = Min., V = 0.0V, I = 48mA CC IN ON 5 7 (3) or 64mA R Switch On Resistance ON V = Min, V = 2.4V, I = 15mA 8 15 CC IN ON Capacitance (T = 25C, f = 1 MHz) A (4) Parameters Description Test Conditions Typ Units Input Capacitance 3.5 pF C IN A/B Capacitance, Switch Off 5.0 pF C V = 0V OFF IN A/B Capacitance, Switch On 10.0 pF C ON 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 = 3.3V, T = 25C ambient and maximum loading. CC A 3. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A,B) pins. 4. This parameter is determined by device characterization but is not production tested. All trademarks are property of their respective owners. www.pericom.com PS8430D 09/30/10 11-0008 2