PI3C32X384BEX

PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion 20-Bit, 2-Port, Bus Switch Features Description ÎÎNear-Zero propagation delay Pericom Semiconductor’s PI3C32X384, is a 2.5V or 3.3Volt, highbandwidth 20-bit, 2-port bus switches designed with a low Onresistance allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal. Four bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses. ÎÎ5-ohm switches connect inputs to outputs (PI3C32X384) ÎÎHigh Bandwidth Operation (>400 MHz) ÎÎPermits Hot Insertion ÎÎ5V I/O Tolerant ÎÎ2.5V Supply Voltage Operation ÎÎPackaging (Pb-free & Green): àà 48-pin 150-mil wide plastic BQSOP (B) Applications Pin Configuration ÎÎHigh Bandwidth Data switching ÎÎHot Docking BEA B0 A0 Block Diagram A0 B0 A5 B5 A4 B4 A9 B9 A15 B15 A10 B10 A19 B19 A14 A1 B1 B2 A2 A3 B3 B4 A4 GND BEC B14 BEA BEB B5 A5 BEC A6 B6 BED B7 A7 Truth Table(1) Function Disconnect BEA BEB B0-B4 A8 B8 B5-B9 B9 Hi-Z 1 2 3 4 5 6 VCC B19 A19 A18 B18 B17 A17 A16 B16 B15 A15 BEB VCC B14 A14 A13 21 36 35 34 33 32 31 30 29 28 22 23 24 27 26 25 B10 A10 BED 13 14 15 16 17 18 19 20 Hi-Z Connect L H A4-A0 Hi-Z Connect H L Hi-Z A19-A15 Connect L L A4-A0 A19-A15 Function BEC BED B9-B5 B14-B10 Disconnect H H Hi-Z Hi-Z Pin Name Connect L H A9-A5 Hi-Z BEX Connect H L Hi-Z A14-A10 A19 - A0 Bus A Connect L L A9-A5 A14-A10 B19 - B0 Bus B B13 B12 A12 A11 B11 Pin Description Note: 1. H = High Voltage Level, X = Don’t Care, L = Low Voltage Level, Hi-Z = High Impedance 11-0008 43 42 41 40 39 38 37 9 10 11 12 H All trademarks are property of their respective owners. 45 44 7 8 H A9 GND 48 47 46 1 Description Bus Enable Input (Active LOW) GND Ground VCC Power www.pericom.com PS8430D 09/30/10 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch Absolute Maximum Ratings Parameter Min. Max. Units Storage Temperature -65 150 o C Ambient Temperature with Power Applied -40 85 o 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, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Description Test Conditions(1) Min VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level -0.5 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ A, B ≤ VCC VIK Clamp Diode Voltage Max RON Switch On Resistance Units V 0.8 V μA ±1 -0.73 -1.2 VCC = Min., VIN = 0.0V, ION = 48mA or 64mA 5 7 VCC = Min, VIN = 2.4V, ION = 15mA 8 15 VCC = Min., IIN = –18 mA (3) Typ (2) V Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) Description CIN Input Capacitance COFF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On Test Conditions VIN = 0V Typ Units 3.5 pF 5.0 pF 10.0 pF 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 = 3.3V, TA = 25°C ambient and maximum loading. 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. 11-0008 2 www.pericom.com PS8430D 09/30/10 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch Power Supply Characteristics Parameters Description Test Conditions(1) ICC Quiescent Power Supply VCC = Max. Current VIN = GND or VCC ΔICC Supply Current per Input HIGH Min Typ (2) Max 0.5 1.0 Units mA VCC = Max. VIN = 3.0V(3) 2.5 Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per TTL driven input (control input only); A and B pins do not contribute to ICC . Switching Characteristics over 3.3V Operating Range Com. Parameters Description Test Conditions (1) tPLH tPHL Propagation Delay(2,3) Ax to Bx, Bx to Ax tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx Min Max Units 0.25 CL = 50 pF R L = 500Ω 1.5 6.5 1.5 5.5 ns Switching Characteristics over 2.5V Operating Range Com. Parameters Description tPLH tPHL Propagation Delay Ax to Bx, Bx to Ax tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx Test Conditions (1) Min (2,3) Max Units 0.25 CL = 50 pF R L = 500Ω 1.5 9.8 1.5 8.3 ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. All trademarks are property of their respective owners. 11-0008 3 www.pericom.com PS8430D 09/30/10 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch 4.0 VCC = 3.3V 3.1V 2.9V 2.7V 2.5V VOUT, (V) 2.3V 3.8V 3.6V 3.4V 3.2V 3.0V 2.8V 2.0 0.0 0.0 1.0 2.0 VIN, (V) 3.0 4.0 5.0 Output Voltage vs. Input Voltage over Various Supply Voltages Output Voltage vs. Input Voltage over Various Supply Voltages All trademarks are property of their respective owners. 11-0008 4 www.pericom.com PS8430D 09/30/10 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch Packaging Mechanical: 48-pin BQSOP (B) 1 DATE: 10/15/08 DESCRIPTION: 48-Pin, 154-Mil Wide BQSOP PACKAGE CODE: B48 REVISION: F DOCUMENT CONTROL #: PD-1210 08-0522 Ordering Information Ordering Code Package Code Package Type PI3C32X384BE B Pb-free & Green, 48-pin BQSOP 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 All trademarks are property of their respective owners. 11-0008 5 www.pericom.com PS8430D 09/30/10