PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Features Description • Near-zero propagation delay Pericom Semiconductor’s PI3CH series of switch circuits are produced using the Company’s advanced sub-micron CMOS technology, achieving industry leading performance. • 5Ω switches connect inputs to outputs • High signal passing bandwidth (300MHz) • Beyond Rail-to-Rail switching • 5V I/O tolerant with 3.3V supply • 2.5V and 3.3V supply voltage operation • Hot insertion capable • Industrial operating temperature: -40ºC to +85ºC • 2KV ESD Protection (human body model) The PI3CH281 is a 2-channel, 4:1 Multiplexer/Demultiplexer with 3-state outputs. The switch introduces no additional ground bounce noise or propagation delay. The PI3CH281 device is very useful in switching signals that have high bandwidth (300MHz). • Latch-up performance >250mA per JESD17 • Packaging (Pb-free & greeen available): – 16-pin 150-mil wide plastic QSOP (Q) – 16-pin 173-mil wide plastic TSSOP (L) – 20-contact TQFN (ZH) Block Diagram Pin Configuration 1 EN EN S0 S1 20 16 VCC EN 2 19� N.C. N.C. S1 3 18 N.C. IA3 4 17 S0 IA2 5 IB3 IA1 6 20-Contact 16 ZH 15 IA0 7 14 IB1 YA 8 13 IB0 N.C. 9 12 YB S1 2 15 IA3 3 14 S0 IA2 4 13 IB3 IA1 5 12 IB2 IA0 6 11 IB1 YA 7 10 IB0 GND 8 9 YB 16-pin L, Q 10 11 N.C. 1 GND YA VCC N.C. IA0 IA1 IA2 IA3 IB0 IB1 IB2 IB3 IB2 YB Notes: 1. N.C = No internal connection 1 PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Truth Table(1) Pin Description Pin Name Description Enable IAN, IBN Data Inputs EN S1 S0 Y Function S0-1 Select Inputs H X X Hi-Z Disable EN Enable L L L I0 S1-0 = 0 YA to YB Data Outputs L L H I1 S1-0 = 1 GND Ground L H L I2 S1-0 = 2 VCC Power L H H I3 S1-0 = 3 Select Notes: 1. H=High Voltage Level; L=Low Voltage Level 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 +6.0V DC Output Current................................................................... 120mA Power Dissipation ....................................................................... 0.5W 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. DC Electrical Characteristics, 3.3V Supply (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Description Test Conditions(1) Min. Typ(2) Max. Units 0.8 V VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level –0.5 VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ Y, In ≤ VCC RON Switch On-Resistance(4) -1.3 –1.8 ±1 VCC = Min., VIN = 0.0V, ION = 48 mA or -64mA 4 6 VCC = Min., VIN = 3.6V, ION = -15 mA 5 8 2 µA PS8726A Ω 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable DC Electrical Characteristics, 2.5V Supply (Over Operating Range, TA = –40°C to +85°C, VCC = 2.5V ± 10%) Parameters(5) Description Test Conditions Min. Typ. Max. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 1.8 – VCC + 0.3 VIL Inout LOW Voltage Guaranteed Logic LOW Level –0.3 – 0.8 VIK Clamp Diode Voltage VCC = Max., IIN = –6mA – –0.7 –1.8 IIH Input HIGH Current VCC = Max., VIN = VCC – – ±1 IIL Input LOW Current VCC = Max., VIN = GND – – ±1 0 ≤ Y, In ≤ VCC – – ±1 VCC = Min., VIN =0.0V, ION = –48mA – 6 8 VCC = Min., VIN = 2.25V, ION = -15mA – IOZH High Impedance Current(3) Switch On-Resistance(4) RON Units V µA Ω 7 14 Capacitance (TA = 25°C f = 1 MHz) Parameters(5) Description CIN Input Capacitance COFF(IN) In Capacitance, Switch Off COFF(Y) Y Capacitance, Switch Off CON Y/In Capacitance, Switch On Test Conditions Typ. Units 3.0 3.5 VIN = 0V pF 12 15.0 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 Y and In pin at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (Y, In) pins. 5. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters Description ICC Quiescent Power Supply Current Test Conditions(1) VCC = 3.6V, VIN = GND or VCC Min. Typ.(2) Max. 0.8 Units mA 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 PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Dynamic Electrical Characteristics Over the Operating Range (TA = -40º to +85º, VCC = 3.3V ± 10%) Parameter Description Test Condition Min. Typ. XTALK Crosstalk See Test Diagram -60 OIRR Off-Isolation See Test Diagram -60 BW -3dB Bandwidth See Test Diagram 200 Max. Units dB 300 MHz Switching Characteristics over 3.3V Operating Range Parameters Conditions(1) Description tPLH tPHL Propogation Delay(2,3) Y to In, In to Y tPZH tPZL Enable Time S or EN to Y or In tPHZ tPLZ Disable Time S or EN to Y or In Com. Min. Typ. Max. See Test Diagram Units 0.3 1.5 9.0 1.5 9.0 ns See Test Diagram Switching Characteristics over 2.5V Operating Range Parameters Conditions(1) Description tPLH tPHL Propogation Delay(2,3) Y to In, In to Y tPZH tPZL Enable Time S or EN to Y or In tPHZ tPLZ Disable Time S or EN to Y or In Com. Min. See Test Diagram Max. Units 0.3 1.5 15.0 1.5 12.0 ns See Test Diagram Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The 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 0.30ns for 10pF 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 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. 4 PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Test Circuit for Electrical Characteristics(1) 6.0V VCC 200Ω Pulse Generator VIN VOUT D.U.T 10pF CL RT 200Ω Notes: 1. CL = Load capacitance: includes jig and probe capacitance. 2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator 3. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 4. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. 5. The outputs are measured one at a time with one transition per measurement. Switch Positions Test Switch tPLZ, tPZL 6.0V tPHZ, tPZH GND Prop Delay Open Test Circuit for Dynamic Electrical Characteristics S1 HP4195A VCC R1 T1 D.U.T HP11667A 10pF 5 50Ω PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Switching Waveforms 2.5V S or EN 1.25V 1.25V 0V 3.5V 2.5V Input tPLH Output Output 2.5V tPHL tPLZ VDD/2 1.5V VOH 2.5V tPZL VOL Output VOL +0.3V VOL tPHZ tPZH 2.5V VOH VOH VDD/2 VOH -0.3V VOL Voltage Waveforms Enable and Disable Times 3.5V 2.5V Input tPLH tPHL 1.5V VOH 2.5V Output VOL tSK(p) = I tPHL – tPLH I Pulse Skew - tSK(p) 6 PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Applications Information Logic Inputs The logic control inputs can be driven upto 3.6Vregardless of the supply voltage. For example, given a +3.3V supply, EN maybe driven LOW to 0V and HIGH to 3.6V. Driving EN Rail-to-Rail® minimizes power consumption. Power Supply-Sequencing Proper power supply sequencing is recommended for all CMOS devices. Always apply VCC before applying signals to the input/ output or control pins. Hot Insertion For Datacom and Telecom applications that have ten or more volts passing through the backplane, a high voltage from the power supply may be seen at the device input pins during hot insertion. The PI3CHxx devices have maximum limits of 6V and 120mA for 20ns. If the power is higher or applied for a longer time or repeatedly reaches the maximum limits, the devices can be damaged. 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 7 PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Packaging Mechanical: 16-pin TSSOP (L) 16 .169 .177 1 .193 .201 4.9 5.1 4.3 4.5 .004 .008 .047 max. 1.20 0.45 .018 0.75 .030 SEATING PLANE .0256 BSC 0.65 .007 .012 .002 .006 0.09 0.20 .252 BSC 6.4 0.05 0.15 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS 0.19 0.30 Packaging Mechanical: 20-contact TQFN (ZH) 0.75±0.05 4.50±0.10 (S) 3.50 REF. Pin 20 2.05±0.10 1.50 REF. 3.50±0.10 3.05±0.10 Pin 1 C 0.35 0.0-0.05 0.40±0.10 0.50 TYP. (14X) 0.25±0.05 0.20 REF. 8 PS8726A 07/08/04 PI3CH281 Low Voltage, High Bandwidth, 2-Channel, 4:1 Mux/DeMux, NanoSwitch™ with Single Enable Ordering Information Ordering Code PI3CH281Q PI3CH281QE PI3CH281L PI3CH281LE PI3CH281Z_E Packaging Code Q Q L L Z Package Description 150-mil, 16-pin QSOP Pb-free & Green, 150-mil, 16-pin QSOP 173-mil, 16-pin TSSOP Pb-free & Green, 173-mil, 16-pin TSSOP Pb-free & Green, 16-contact TQFN Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. Number of Transistors = TBD Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 9 PS8726A 07/08/04