PI3C34X245 2.5V/3.3V, High Bandwidth, Hot Insertion 32-Bit, 2-Port, Bus Switch Features Description ÎÎNear-Zero propagation delay Pericom Semiconductor’s PI3C34X245 is a 2.5V or 3.3V, 32-bit, 2-port bus switch designed with a low On-Resistance (5-ohms) 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. It is very useful in switching signals that have high bandwidth (>400 MHz). ÎÎ5-ohm switches connect inputs to outputs ÎÎ2.5V Supply Voltage Operation ÎÎPermits Hot Insertion ÎÎCapable of Hot-Swapping ÎÎ5V I/O Tolerant ÎÎHigh Bandwidth Operation (>400 MHz) ÎÎPackaging (Pb-free & Green): àà 80-pin 150-mil wide plastic BQSOP (B) Block Diagram Pin Configuration A0 B0 A7 B7 NC A0 A1 A2 A3 A4 A5 A6 A7 GND NC A8 A9 A10 A11 A12 A13 A14 A15 GND NC A16 A17 A18 A19 A20 A21 A22 A23 GND NC A24 A25 A26 A27 A28 A29 A30 A31 GND BE1 A8 B8 A15 B15 BE2 A16 B16 A23 B23 BE3 A24 B24 A31 B31 BE4 Pin Description Pin Name BEn Description Bus Enable Input (Active LOW) A0 – A31 Bus A B0 – B31 Bus B All trademarks are property of their respective owners. 13-0159 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 VCC BE1 B0 B1 B2 B3 B4 B5 B6 B7 VCC BE2 B8 B9 B10 B11 B12 B13 B14 B15 VCC BE3 B16 B17 B18 B19 B20 B21 B22 B23 VCC BE4 B24 B25 B26 B27 B28 B29 B30 B31 www.pericom.com PS8429F10/23/13 PI3C34X245 2.5V/3.3V, High Bandwidth, Hot Insertion, 32-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 Typ (2) Max 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 RON Switch On Resistance(3) Units V 0.8 V μA ±1 -0.73 -1.2 VCC = Min., VIN = 0.0V, ION = 48mA 5 7 VCC = Min, VIN = 2.4V, ION = 15mA 8 15 VCC = Min., IIN = –18 mA V Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) Description Test Conditions CIN Input Capacitance COFF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On 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. 13-0159 2 www.pericom.com PS8429F10/23/13 PI3C34X245 2.5V/3.3V, High Bandwidth, Hot Insertion, 32-Bit, 2-Port Bus Switch Power Supply Characteristics Parameters Description Test Conditions(1) ICC Quiescent Power Supply Current ΔICC Supply Current per Input HIGH Min VIN = GND or VCC Typ (2) Max 1.0 2.0 Units mA VCC = Max. 2.5 VIN = 3.0V(3) 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 driven input (control input only); A and B pins do not contribute to ΔICC. Switching Characteristics over 3.3V Operating Range Com. Parameters Description Test Conditions (1) tPLH tPHL Propagation Delay(2,3) Ax to Bx tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx Min CL = 50 pF R L = 500Ω Max Units 0.25 CL = 50 pF R L = 500Ω R = 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 tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx Test Conditions (1) (2,3) Min CL = 50 pF R L = 500Ω Max Units 0.25 CL = 50 pF R L = 500Ω R = 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. 13-0159 3 www.pericom.com PS8429F10/23/13 PI3C34X245 2.5V/3.3V, High Bandwidth, Hot Insertion, 32-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 3.0 2.0 4.0 5.0 VIN, (V) Output Voltage vs. Input Voltage over Various Supply Voltages All trademarks are property of their respective owners. 13-0159 4 www.pericom.com PS8429F10/23/13 PI3C34X245 2.5V/3.3V, High Bandwidth, Hot Insertion, 32-Bit, 2-Port Bus Switch Packaging Mechanical: 80-pin BQSOP (B) 80 DOCUMENT CONTROL NO. 41 PD - 1211 REVISION: D DATE: 03/09/05 .150 .157 3.80 4.00 .228 .244 5.80 6.20 .008 NOM 0.203 Gauge Plane 5˚ 1 1 0.50 .019 REF 0.803 0.811 20.40 20.60 .010 .016 .063 1.60 Nom .007 .010 0.17 0.27 .0197 BSC 0.50 X.XX X.XX .010 0.254 BSC .019 0.50 .029 0.75 40 0.254 x 45˚ 0.406 .078 2.0 Max 5˚ .002 .009 0.05 0.25 DENOTES DIMENSIONS IN MILLIMETERS Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Note: 1. Controlling dimensions in millimeters. 3. Package Outline Exclusive of Mold Flash and Metal Burr 3. Ref: JEDEC MO-154C/BC DESCRIPTION: 80-Pin, 150-Mil Wide BQSOP PACKAGE CODE: B Ordering Information Ordering Code Package Code Package Type PI3C34X245BE B Pb-free & Green, 80-pin BQSOP 1. Thermal characteristics can be found on the company web site at : http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/ 2. "E" denotes Pb-free and Green 3. Adding an "X" at the end of the ordering code denotes tape and reel packaging Pericom Semiconductor Corporation • 1-800-435-2336 All trademarks are property of their respective owners. 13-0159 5 www.pericom.com PS8429F10/23/13