PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Features Description • RON is 4Ω typical The PI3L110 is a 8- to 4-bit multiplexer/demultiplexer LAN Switch with Hi-Z outputs. Industry leading advantages include a propagation delay of less than 250ps, resulting from its low channel resistance and I/O capacitance. The device multiplexes differential outputs from a Fast Ethernet transceiver (PHY) device to one of two corresponding outputs. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-to-bit skew, high channel-to-channel noise isolation and is compatible with various standards, such as 10/100 Base-T (Ethernet). • Low crosstalk: –27dB @ 250 MHz • Near-Zero propagation delay: 250ps • Switching speed: 9ns • Channel On capacitance: 9pF (typical) • VCC Operating Range: +3.0V to +3.6V • >2kV ESD protection (human body model) • >350 MHz bandwidth (or data frequency) Generally, this part can be used to replace mechanical relays in low-voltage LAN applications that interface a physical layer over CAT 5 or CAT 6 unshielded twisted pair cable through an isolation transformer. • Switching on Data I/O Ports (0 to 5V) • IOFF supports Partial-Power-Down mode operation • Data and Control Inputs have Undershoot Clamp Diodes • Packaging (Pb-free & Green available) – 16-pin 150-mil wide plastic QSOP (Q) – 16-pin 173-mil wide plastic TSSOP (L) The PI3L110 is fully specified for partial-power-down applications using IOFF. The IOFF feature ensures that damaging current will not backflow thoughout the device when it is powered down. The device has isolation during Power Off. Applications • Dual Physical Layer Device sharing to one interface connector • Routes signals for 10/100 Mbit Ethernet Pin Configuration Block Diagram IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1 E S YA 07-0076 YB YC S 1 16 IA0 2 15 E IA1 3 14 ID0 YA 4 13 ID1 IB0 5 12 YD IB1 6 11 IC0 YB 7 10 IC1 GND 8 9 YC VCC YD 1 PS8690E 03/23/07 PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Truth Table(1) Pin Description E S YA YB YC YD Function H X Hi-Z Hi-Z Hi-Z Hi-Z Disable L L IA 0 IB0 IC0 ID 0 S=0 L H IA 1 IB1 IC1 ID 1 S=1 Pin Name IAN-IDN S E YA-YD GND VCC Note: 1. H = High Voltage Level L = Low Voltage Level X = Don't Care Description Data Inputs Select Inputs Enable Data Outputs Ground Power Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature ..................................................... –65°C to +150°C Supply Voltage to Ground Potential ......................... –0.5V to +4.0V DC Input Voltage ............................................................. –0.5V to +5.5V 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 for 10/100 Base-T Ethernet Switching over Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameter Description Test Conditions(1) Min. Typ.(2) Max. Units 0.8 V VIH Input HIGH Voltage Guaranteed HIGH level 2.0 VIL Input LOW Voltage Guaranteed LOW level –0.5 VIK Clamp Diode Voltage VCC = Max., IIN = –18mA IIH Input HIGH Current VCC = Max., VIN = VCC ±5 μA IIL Input LOW Current VCC = Max., VIN = GND ±5 μA IOFF Current while I/O disabled VCC = 0, VO = 0 to 5V 1 μA RON Switch On-Resistance(3) VCC = Min., 1.25V ≤ VIN ≤ VCC, IIN = –10mA to –30mA RFLAT(ON) On-Resistance Flatness(4) VCC = Min., VIN @ 1.25V and VCC, IIN = –10mA to –30mA ∆RON On-Resistance match from center ports to any other port(4) VCC = Min., 1.25V ≤ VIN ≤ VCC, IIN = –10mA to –30mA –0.7 4.0 –1.2 8.0 Ω 1 0.9 2.0 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. Measured by the voltage drop between IN and YN pins at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (IN & YN) pins. 4. This parameter is determined by device characterization but is not production tested. 07-0076 2 PS8690E 03/23/07 PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) CIN Description Test Conditions Typ. Max. 2 3 4 6 9 10 Input Capacitance COFF(In) VIN = 0V Port IN Capacitance, Switch OFF CON YN/IN Capacitance, Switch ON Units pF Notes: 1. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters ICC Test Conditions(1) Description Quiescent Power Supply Current Min. Typ.(2) Max. Units 800 μA VCC = Max., VIN = GND or VCC 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. Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%, GND = 0V) Parameter XTALK Description Test Conditions Crosstalk OIRR OFF Isolation BW Bandwidth –3dB Min. Typ. Max. –40 RL = 50Ω, f = 250 MHz dB –30 RL = 50Ω Units 350 MHz Characteristics Paramenter tPD Description Propagation Test Conditions Min. Delay(2,3) Typ.(1) Max. 0.25 tPZH, tPZL Line Enable Time - S or E to YN, IN 0.5 15 tPHZ, tPLZ Line Disable Time - S to E to YN, IN 0.5 9 tSK(p) Units Skew between opposite transitions of the same output (tPHL - tPLH) (2) 0.1 ns 0.2 Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Guaranteed by design. 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 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 bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side. 07-0076 3 PS8690E 03/23/07 PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Test Circuit for Electrical Characteristics 6.0V VCC 200-ohm Pulse Generator VIN D.U.T VOUT 10pF CL RT 200-ohm Notes: • CL = Load capacitance: includes jig and probe capacitance. • RT = Termination resistance: should be equal to ZOUT of the Pulse Generator • 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. • All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. • 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 HP4195A R1 S1 VCC T1 D.U.T HP11667A 10pF 07-0076 4 50-ohm PS8690E 03/23/07 PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Switching Waveforms 2.5V S or E 1.25V 1.25V 0V 3.5V 2.5V Input Output 2.5V tPZL 1.5V tPLH VOH VOL +0.3V tPHL VOH Output tPLZ VDD/2 2.5V tPHZ tPZH 2.5V VDD/2 VOL VOL VOH -0.3V Output VOH VOL Voltage Waveforms Enable and Disable Times 3.5V 2.5V Input 1.5V tPLH tPHL VOH 2.5V Output VOL tSK(p) = I tPHL – tPLH I Pulse Skew - tSK(p) 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, the output enables or select pins may be driven low to 0V and high to 3.6V. Driving the control inputs Rail-to-Rail® minimizes power consumption. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. 07-0076 5 PS8690E 03/23/07 PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Packaging Mechanical: 16-Pin QSOP (Q) 16 .008 0.20 MIN. .150 .157 .008 .013 0.20 0.33 3.81 3.99 Guage Plane .010 0.254 1 Detail A .189 .197 4.80 5.00 0˚-6˚ .016 .035 0.41 0.89 .041 1.04 REF .015 x 45° 0.38 .008 0.203 REF .053 1.35 .069 1.75 Detail A 0.41 .016 1.27 .050 SEATING PLANE .008 .012 .025 BSC 0 635 .00 .01 .228 .244 5.79 6.19 .004 0.101 .010 0.254 Packaging Mechanical: 16-Pin TSSOP (L) 16 .169 .177 4.3 4.5 1 .193 .201 4.9 5.1 .047 max. 1.20 0.45 .018 0.75 .030 SEATING PLANE .0256 .007 .002 .006 .252 BSC 6.4 0.05 0.15 Ordering Information Ordering Code Package Code Package Description PI3L110Q Q 16-pin 150-mil wide plastic QSOP PI3L110QE Q Pb-free & Green, 16-pin 150-mil wide plastic QSOP PI3L110L L 16-pin 173-mil wide plastic TSSOP PI3L110LE L Pb-free & Green, 16-pin 173-mil wide plastic TSSOP Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 07-0076 6 PS8690E 03/23/07