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Technical content

Features

Î Near-Zero propagation delay Î 5-ohm switches connect inputs to outputs Î Fast Switching Speed: 4.5ns (max.) Î Ultra-Low Quiescent Power (0.2μA Typical) à I deally suited for notebook applications Î Packaging (Pb-free & Green): à 2 0-pin 173-mil wide plastic TSSOP (L) 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitchTM Pin Description Pin Name Description BEn Bus Enable Input (Active LOW) A0-7 Bus A B0-7 Bus B GND Ground VCC Power Truth Table(1) BE1 BE2 1A, 1B 2A, 2B H H Disconnect Disconnect L H 1A = 1B Disconnect H L Disconnect 2A = 2B L L 1A = 1B 2A = 2B Note: 1. H = High Voltage Level, L = Low Voltage Level 11-0003

www.pericom.com PS8149H 09/27/10 All trademarks are property of their respective owners. PI3B3244 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitchTM Absolute Maximum Ratings Parameter Min. Max. Units Storage Temperature -65 150 oC Ambient Temperature with Power Applied -40 85 oC Supply Voltage to Ground Potential -0.5 4.6 V DC Input Voltage -0.5 4.6 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. Parameters Description Test Conditions(1) Min Typ (2) Max Units VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 V VIL Input LOW Voltage Guaranteed Logic LOW Level -0.5 0.8 V IIH Input HIGH Current VCC = Max., VIN = VCC ±1 μA IIL Input LOW Current VCC = Max., VIN = GND ±1 μA IOZH High Impedance Output Current 0 ≤ IN, YN ≤ VCC ±1 μA VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA -1.2 V RON Switch On Resistance(3) VCC = Min., VIN = 0.0V, ION = 48mA or 64mA 5 8 Ω VCC = Min, VIN = 2.4V, ION = 15mA 10 17 Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description Test Conditions Typ Units CIN Input Capacitance VIN = 0V 3.0 pF COFF A/B Capacitance, Switch Off VIN = 0V 8.0 pF CON A/B Capacitance, Switch On VIN = 0V 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 V CC = 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. 11-0003

www.pericom.com PS8149H 09/27/10 All trademarks are property of their respective owners. PI3B3244 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitchTM Power Supply Characteristics Parameters Description Test Conditions(1) Min Typ (2) Max Units ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 3.0 μA ΔICC Supply Current per Input @ TTL HIGH V CC = Max. VIN = 3.0V(3) 750 μA Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at V CC = 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 Operating Range Parameters Description Test Conditions(1) Com. UnitsMin Max tPLH tPHL Propagation Delay(2,3) Ax to Bx CL = 50 pF RL = 500Ω 0.25 nst PZH tPZL Bus Enable Time BE to Ax or Bx 1.0 4.0 t PHZ tPLZ Bus Disable Time BE to Ax or Bx 1.0 4.5 Notes: 1. See test circuit and wave forms. 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 ca- pacitance. 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. 11-0003

www.pericom.com PS8149H 09/27/10 All trademarks are property of their respective owners. PI3B3244 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitchTM Pericom Semiconductor Corporation • 1-800-435-2336 Packaging Mechanical: 20-Pin TSSOP (L) DESCRIPTION: 20-Pin, 173-Mil Wide, TSSOP PACKAGE CODE: L DOCUMENT CONTROL NO. PD - 1311 REVISION: E DATE: 03/09/05 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2336

  • www.pericom.com .252 .260 .047 1.20 .002 .006 SEATING PLANE .0256 BSC .018 .030 .004 .008 .238 .269 .169 .177 0.05 0.15 6.1 6.7 0.45 0.75 0.09 0.20 4.3 4.5 6.4 6.6 0.65 0.19 0.30 .007 .012 Max Note: 1. Package Outline Exclusive of Mold Flash and Metal Burr 2. Controlling dimentions in millimeters 3. Ref: JEDEC MO-153F/AC

Ordering Information

Ordering Code Package Code Package Type PI3B3244LE L Pb-free & Green, 20-pin TSSOP 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 11-0003