PI3B34X245 3.3V, 32-Bit, 2-Port NanoSwitch™ Features Description ÎÎFast Switching Speed - 4.5ns max. The PI3B34X245 is a 3.3V, 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. ÎÎNear-Zero propagation delay ÎÎ5-ohm switches connect inputs to outputs ÎÎDirect bus connection when switches are ON ÎÎUltra-low quiescent power (1.0μA typical) àà Ideally suited for notebook applications ÎÎIndustrial operating temperature: –40°C to +85°C ÎÎTTL - compatible control of input levels ÎÎPackaging (Pb-free & Green): àà 80-pin 150-mil wide plastic BQSOP (B) Pin Configuration 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 Block Diagram A0 SW B0 A7 SW B7 A8 SW B8 A15 SW B15 A16 SW B16 A23 SW B23 A24 SW B24 A31 SW B31 BE1 BE2 BE3 BE4 SW A 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 B BE All trademarks are property of their respective owners. 13-0160 1 www.pericom.com PS8429F10/23/13 PI3B34X245 3.3V, 32-Bit, 2-Port NanoSwitch™ Truth Table(1) Pin Description Function BEn A0–31 Pin Name I/O Disconnect H Hi-Z BEn I Connect L B0–31 A0 – A31 I/O Bus A B0 – B31 I/O Bus B Notes: 1. H = High Voltage Level, L = Low Voltage Level, Hi-Z = High Impedance Description Bus Enable Input (Active LOW) 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. DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Description Test Conditions 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 ±1 VIK Clamp Diode Voltage -1.2 RON Switch On Resistance Units V 0.8 VCC = Min., IIN = –18 mA VCC = Min., VIN = 0.0V, ION = 48mA 5 8 VCC = Min, VIN = 2.4V, ION = 15mA 10 17 V μA V Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(5) 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 8.0 pF 16.0 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. 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. 5. This parameter is determined by device characterization but is not production tested. All trademarks are property of their respective owners. 13-0160 2 www.pericom.com PS8429F10/23/13 PI3B34X245 3.3V, 32-Bit, 2-Port NanoSwitch™ Power Supply Characteristics Parameters Description ICC Quiescent Power Supply Current ΔICC Supply Current per Input @ TTL HIGH Test Conditions(1) Min VIN = GND or VCC Typ (2) Max 1.0 10 Units µA VCC = Max. 750 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 ICC. 4. 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(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 Test Conditions (1) Min CL = 50 pF R L = 500Ω Max Units 0.25 CL = 50 pF R L = 500Ω R = 500Ω 1.0 4.0 1.0 4.5 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. Applications Information Logic Inputs The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a + 3.3V supply, IN may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption. Power-Supply Sequencing and Hot-Plug Information Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to input/output or control pins. Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd. All trademarks are property of their respective owners. 13-0160 3 www.pericom.com PS8429F10/23/13 PI3B34X245 3.3V, 32-Bit, 2-Port NanoSwitch™ 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 PI3B34X245BE B Pb-free & Green, 80-pin, 150-mil wide plastic 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. 13-0160 4 www.pericom.com PS8429F10/23/13