PI3B3125 PI3B3126 3.3V, 4-Bit, 2-Port Nanoswitch™ w/Individual Enables Features Description • Near-Zero propagation delay • 5Ω switches connect inputs to outputs • Fast Switching Speed -4ns Max. • Ultra Low Quiescent Power (0.1µA Typical) – Ideally suited for notebook applications • Packaging (Pb-free & Green available): – 14-pin 150-mil wide plastic SOIC (W) – 14-pin 170-mil wide plastic TSSOP (L) – 16-pin 150-mil wide plastic QSOP (Q) Pericom Semiconductor’s PI3B3125 and PI3B3126 are 3.3 Volt, 4-bit bus switches designed with four individual 5Ω bus switches with fast indiviual enables in an industry standard 74XX125/126 pinout. When enabled via the associated Bus Enable (BE) pin, the “A” pin is directly connected to the “B” pin for that particular gate. The bus switch introduces no additional propagation delay or additional ground bounce noise. The PI3B3125 device has active LOW enables, and the PI3B3126 has active HIGH enables. PI3B3125 Block Diagram PI3B3126 Block Diagram A0 SW B0 A0 BE0 A1 SW B1 A1 SW B1 SW B2 SW B3 BE1 SW B2 A2 BE2 A3 B0 BE0 BE1 A2 SW BE2 SW B3 A3 SW BE3 SW BE3 A B A B BE OE 1 PS8153F 09/09/04 PI3B3125/PI3B3126 3.3V, 4-Bit, 2-Port NanoSwitch™ w/Individual Enables Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ............................................................ –65°C to +150°C Ambient Temperature with Power Applied ........................... –40°C to +85°C Supply Voltage to Ground Potential........................................–0.5V to +4.6V DC Input Voltage ....................................................................–0.5V to +4.6V DC Output Current............................................................................... 120mA Power Dissipation ................................................................................... 0.5W PI3B3125 14-Pin Configuration PI3B3126 14-Pin Configuration BE0 1 14 VCC BE0 1 14 VCC A0 2 13 BE3 A0 2 13 BE3 B0 3 12 A3 B0 3 12 A3 BE1 4 11 B3 BE1 4 11 B3 A1 5 10 BE2 A1 5 10 BE2 B1 6 9 A2 B1 6 9 A2 GND 7 8 B2 GND 7 8 B2 PI3B3125 16-Pin Configuration PI3B3126 16-Pin Configuration NC 1 16 VCC NC 1 16 VCC BE0 2 15 BE3 BE0 2 15 BE3 A0 3 14 A3 A0 3 14 A3 B0 4 13 B3 B0 4 13 B3 BE1 5 12 BE2 BE1 5 12 BE2 A1 6 11 A2 A1 6 11 A2 B1 7 10 B2 B1 7 10 B2 GND 8 9 NC GND 8 9 NC Truth Table(1) Pin Description Pin Name BEN BEN A3-A0 B3-B0 VCC GND Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Description Switch Enable (PI3B3125) Switch Enable (PI3B3126) Bus A Bus B Power Ground PI3B3125 BEN X(2) PI3B3126 BEN AN BN VCC Function X Hi-Z Hi-Z GND Disconnect H L Hi-Z Hi-Z VCC Disconnect L H VCC Connect Bn An Notes: 1. H = High Voltage Level, L = Low Voltage Level, Hi-Z = High Impedance, X = Don't Care 2. A pull-up resistor should be provided for power-up protection. 2 PS8153F 09/09/04 PI3B3125/PI3B3126 3.3V, 4-Bit, 2-Port NanoSwitch™ w/Individual Enables DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Test Conditions(1) Description Typ.(2) Min. 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 IOFF Off Current VCC = 0, VOUT = 3 to 3.6V 10 VIK Clamp Diode Voltage VCC = Min., IIN = –18mA –1.2 RON Switch On-Resistance(3) Units V 0.8 VCC = Min., VIN = 0.0V, ION = 48mA or 60mA 5 8 VCC = Min., VIN = 2.4V, ION = 15mA 10 17 µA V Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) Description CIN Input Capacitance COFF A/B Capacitance, Switch Off Test Conditions Typ. Units 3.5 VIN = 0V pF 8 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. Power Supply Characteristics Parameters Test Conditions(1) Description ICC Quiescent Power Supply Current ΔICC Supply Current per Input HIGH VCC = Max. VIN = GND or VCC VCC = Max. VIN = Min. Typ.(2) Max. 0.1 3 3.0V(3) 750 Units µA 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 inputs only); A and B pins do not contribute to ICC. 3 PS8153F 09/09/04 PI3B3125/PI3B3126 3.3V, 4-Bit, 2-Port NanoSwitch™ w/Individual Enables PI3B3125 Switching Characteristics over Operating Range PI3B3125 Parameters Description Conditions(1) Com. Min. Delay(2,3) Units Max. tPLH tPHL Propagation Ax to Bx, Bx to Ax CL = 50pF RL = 500Ω tPZH tPZL Bus Enable Time CL = 50pF, RL = 500Ω, 1.0 3.0 tPHZ tPLZ Bus Disable Time RL = 500Ω 1.0 4.0 0.25 ns PI3B3126 Switching Characteristics over Operating Range PI3B3126 Parameters Description Conditions(1) Com. Min. Units Max. tPLH tPHL Propagation Delay(2,3) Ax to Bx, Bx to Ax CL= 50pF RL = 500Ω tPZH tPZL Bus Enable Time CL= 50pF, RL = 500Ω, 1.0 2.5 tPHZ tPLZ Bus Disable Time RL = 500Ω 1.0 4.0 0.25 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 0.25ns for 50pF 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. 4 PS8153F 09/09/04 PI3B3125/PI3B3126 3.3V, 4-Bit, 2-Port NanoSwitch™ w/Individual Enables Packaging Mechanical: 14-pin SOIC (W) 14 .149 .157 .0099 .0196 3.78 3.99 0.25 x 45˚ 0.50 .0075 .0098 0-8˚ 1 0.41 1.27 .336 .344 8.55 8.75 .0155 .026 0.393 0.660 .053 .068 SEATING PLANE .050 BSC 1.27 .016 .050 .2284 .2440 5.80 6.20 1.35 1.75 REF 0.19 0.25 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .0040 0.10 .0098 0.25 .013 .020 0.330 0.508 Packaging Mechanical: 14-pin TSSOP (L) 14 0.169 0.177 1 0.0256 typical 0.65 0.193 0.201 4.90 5.10 0.007 0.012 0.19 0.30 0.004 0.09 0.008 0.20 4.3 4.5 0.45 0.75 0.018 0.030 0.240 0.264 6.1 6.7 0.047 1.20 max. X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS SEATING PLANE 0.002 0.05 0.006 0.15 5 PS8153F 09/09/04 PI3B3125/PI3B3126 3.3V, 4-Bit, 2-Port NanoSwitch™ w/Individual Enables Packaging Mechanical: 16-pin QSOP (Q) 16 .008 0.20 MIN. .150 .157 3.81 3.99 Guage Plane .010 0.254 1 0˚-6˚ .016 .035 0.41 0.89 Detail A .189 .197 4.80 5.00 .041 1.04 REF .015 x 45° 0.38 .008 0.203 REF .053 1.35 .069 1.75 Detail A .008 .012 0.203 0.305 .007 .010 0.178 0.254 0.41 .016 1.27 .050 SEATING PLANE .025 BSC 0.635 .008 .013 0.20 0.33 .228 .244 5.79 6.19 .004 0.101 .010 0.254 X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX Ordering Information Ordering Code Package Code Package Desciption PI3B3125L L 14-Pin TSSOP PI3B3125LE L Pb-free & Green, 14-Pin TSSOP PI3B3125W W 14-pin SOIC PI3B3125WE W Pb-free & Green, 14-pin SOIC PI3B3125Q Q 16-pin QSOP PI3B3125QE Q Pb-free & Green, 16-pin QSOP PI3B3126L L 14-Pin TSSOP PI3B3126LE L Pb-free & Green, 14-Pin TSSOP PI3B3126W W 14-pin SOIC PI3B3126WE W Pb-free & Green, 14-pin SOIC PI3B3126Q Q 16-pin QSOP PI3B3126QE Q Pb-free & Green, 16-pin QSOP Notes: 1. Thermal Characteristics can be found on the web at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 6 PS8153F 09/09/04