PI5C34X245BEX

PI5C34X245 32-Bit, 2-Port Bus Switch Features Description ÎÎNear-Zero propagation delay The PI5C34X245 is a 32-bit, 2-port bus switch. Four enable signals (BEn) turn the switches on. The bus switch creates no additional propagational delay or additional ground bounce noise. ÎÎ5Ω switches connect inputs to outputs ÎÎDirect bus connection when switches are ON ÎÎUltra-low quiescent power (0.2μA typical) àà Ideally suited for notebook applications ÎÎIndustrial operating temperature: –40°C to +85°C ÎÎPackaging (Pb-free & Green available): àà 80-pin 150 mil wide 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 All trademarks are property of their respective owners. 11-0009 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 05/26/11 PI5C34X245 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 7.0 V DC Input Voltage -0.5 7.0 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. Pin Description Truth Table(1) Pin Name I/O Description Function BEn A0 - 31 BEX I Bus Enable Input (Active LOW) Disconnect H Hi-Z A0 – A31 I/O Bus A Connect L B0 – 31 B0 – B31 I/O Bus B Notes: 1. H = High Voltage Level, L = Low Voltage Level, Hi-Z = High Impedance DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±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 VCC = Min., IIN = –18 mA IOS Short Circuit Current(3) A (B) = 0V, B (A) = VCC VH Input Hystersis at Control Pins RON Switch On Resistance(4) Units V 0.8 V μA ±1 -0.7 -1.2 100 V mA V VCC = Min., VIN = 0.0V, ION = 48mA 5 7 VCC = Min, VIN = 2.4V, ION = 15mA 10 15 Ω 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 = 5.0V, TA = 25°C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. 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. All trademarks are property of their respective owners. 11-0009 2 www.pericom.com 05/26/11 PI5C34X245 32-Bit, 2-Port Bus Switch Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description Test Conditions CIN Input Capacitance COFF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On VIN = 0V Typ Units 6 pF 6 pF 12 pF Typ (2) Max Units 0.1 3.0 μA 2.5 mA 0.25 mA/ MHz Notes: 1. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters Description Test Conditions(1) Min ICC Quiescent Power Supply VCC = Max. Current VIN = GND or VCC ΔICC Supply Current @ TTL HIGH VCC = Max. VIN = 3.4V(3) ICCD Supply Current per Input per MHz(4) VCC = Max. A & B Pins Open, Control Input Toggling 50% Duty Cycle Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 5.0V, +25°C ambient. 3. Per TTL driven input (VIN = 3.4V, control inputs only); A and B pins do not contribute to ICC 3. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. Switching Characteristics over Operating Range Com. Parameters Description tPLH tPHL Propagation Delay(1,2) 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 Min Max Units 0.25 CL = 50 pF R L = 500Ω 1.5 5.6 1.5 5.2 ns Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 2. 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. 11-0009 3 www.pericom.com 05/26/11 PI5C34X245 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 X.XX X.XX 0.254 x 45˚ 0.406 .078 2.0 Max 5˚ .007 .010 0.17 0.27 .0197 BSC 0.50 .010 0.254 BSC .019 0.50 .029 0.75 40 .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 PI5C34X245BE B Pb-free & Green, 80-pin BQSOP 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Pb-free & Green 3. Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 All trademarks are property of their respective owners. 11-0009 4 www.pericom.com 05/26/11