PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethernet LAN Switch with Single Enable and Enhanced ESD Protection Features Description • • • • • • • • • RON is 4Ω typical Low bit-to-bit skew: 200ps Low Crosstalk: –22dB @ 250MHz Near-Zero propagation delay: 250ps Switching speed: 9ns Channel On capacitance: 10pF (typical) Status Indicator LEDs Switched with Ethernet pairs VCC Operating Range: +3.0V to +3.6V Enhanced ESD Protection: – 8kV (contact)(1) – Switch pins: 1.1kV (machine model), 12kV (human body model) • >550 MHz bandwidth (or data frequency) • Packaging: – Pb-free and Green, 56-contact TQFN (ZF) The PI3L500-A is a 8-Channel 2:1 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 Gigabit Ethernet transceiver (PHY) device to one of two corresponding B1 or B2 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-tochannel noise isolation and is compatible with various standards, such as 10/100/1000 Base-T (Ethernet). 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. Applications Note: 1. IEC 61000-4-2 • Dual Physical Layer Device sharing to one interface connector • Routes signals for 10/100/1000 Mbit Ethernet 1 GND 2LED1 2LED2 VDD GND 51 50 49 LED2 52 GND 54 53 VDD 2B1 7 42 3B1 8 41 2B2 9 40 3B2 10 39 11 38 GND VDD 12 37 4B1 13 36 5B1 14 35 4B2 15 34 16 33 5B2 17 32 18 31 19 30 20 29 28 43 GND SEL GND 6 27 XLED2 44 26 XLED1 1B2 5 VDD LEDX 45 1LED2 7B2 0B2 4 25 6B2 46 0LED2 7B1 1B1 3 24 A7 6B1 0B1 47 GND A6 48 2 23 1B2 1 1LED1 GND A0 A1 VDD N.C. GND A2 A3 GND VDD A4 A5 GND A6 A7 GND SEL VDD LED0 LED1 0B2 55 1B1 22 A1 21 0B1 GND A0 56 Pin Description 0LED1 Block Diagram GND 6B1 7B1 6B2 7B2 PS8803 12/13/05 PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethenet LAN Switch w/Single Enable and Enhanced ESD Protection Pin Description Truth Table Pin Name Description AX DeMux Inputs XBY Mux Inputs LEDZ LED Demux Inputs ZLEDY LED Mux Inputs GND Ground VCC Power SEL Select SEL Function L AX to XB1; LEDZ to ZLED1 H AX to XB2; LEDZ to ZLED2 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. 2 PS8803 12/13/05 PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethenet LAN Switch w/Single Enable and Enhanced ESD Protection DC Electrical Characteristics for 1000 Base-T Ethernet Switching over Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%) Paramenter Description Test Conditions(1) Min. Typ.(2) Max. VIH Input HIGH Voltage Guaranteed HIGH level (Control Pins) 2.0 – – VIL Input LOW Voltage Guaranteed LOW level (Control Pins) –0.5 – 0.8 VIK Clamp Diode Voltage VCC = Max., IIN = –18mA – –0.7 –1.2 IIH Input HIGH Current VCC = Max., VIN = VCC – – ±5 IIL Input LOW Current VCC = Max., VIN = GND – – ±5 RON Switch On-Resistance(3) VCC = Min., 1.5V ≤ VIN ≤ VCC IIN = –40mA – 4.0 6.5 RFLAT(ON) On-Resistance Flatness(3) VCC = Min., VIN @ 1.5V and VCC IIN = –40mA – 0.5 – ΔRON On-Resistance match from center VCC = Min., 1.5V ≤ VIN ≤ VCC ports to any other port(3) IIN = –40mA – 0.4 1.0 Units V µA Ω DC Electrical Characteristics for 10/100 Base-T Ethernet Switching over Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%) Paramenter Description Test Conditions(1) Min. Typ.(2) Max. VIH Input HIGH Voltage Guaranteed HIGH level (Control Pins) 2.0 – – VIL Input LOW Voltage Guaranteed LOW level (Control Pins) –0.5 – 0.8 VIK Clamp Diode Voltage VCC = Max., IIN = –18mA – –0.7 –1.2 IIH Input HIGH Current VCC = Max., VIN = VCC – – ±5 IIL Input LOW Current VCC = Max., VIN = GND – – ±5 RON Switch On-Resistance(3) VCC = Min., 1.25V ≤ VIN ≤ VCC IIN = –10mA to –30mA – 4.0 6.5 RFLAT(ON) On-Resistance Flatness(3) VCC = Min., VIN @ 1.25V and VCC IIN = –10mA to –30mA – 0.5 – ∆RON On-Resistance match from cen- VCC = Min., 1.25V ≤ VIN ≤ VCC IIN = ter ports to any other port(3) –10mA to –30mA – 0.4 1.0 Capacitance (TA = 25°C, f = 1MHz) Parameters(4) Description CIN Input Capacitance COFF(B1, B2) Port B Capacitance, Switch OFF CON(A/B) A/B Capacitance, Switch ON Test Conditions(1) VIN = 0V Typ. Max. 2.0 3.0 4.0 6.0 10.0 11.0 Units V µA Ω Units 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. Measured by the voltage drop between A and B pins 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. 3 PS8803 12/13/05 PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethenet LAN Switch w/Single Enable and Enhanced ESD Protection Power Supply Characteristics Parameters ICC Test Conditions(1) Description Quiescent Power Supply Current VCC = Max., VIN = GND or VCC Min. Typ.(2) Max. Units — 0.5 3.5 mA Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C, Parameter XTALK Crosstalk(3) OIRR OFF BW Test Conditions(1) Description RL = 100Ω, f = 250MHz Isolation(3) Bandwidth –3dB(3) RL = 100Ω VCC = 3.3V ±10%, GND = 0V) Min. Typ.(2) Max. — –27 — — –32 — — 350 — MHz Max. Units Units dB Switching Characteristics Min. Typ.(2) tPD Propagation Delay(3,4) – 0.25 tPZH, tPZL Line Enable Time - SEL to AN, BN 0.5 – 15.0 tPHZ, tPLZ Line Disable Time - SEL to AN, BN 0.5 – 9.0 tSK(o) Output Skew between center port (A4 to A5) to any other – 0.1 0.2 tSK(p) Skew between opposite transitions of the same output (tPHL - tPLH – 0.1 0.2 Paramenter Description port(3) ) (3) ns 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. Guaranteed by design. 4. 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. 4 PS8803 12/13/05 PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethenet LAN Switch w/Single Enable and Enhanced ESD Protection Test Circuit for Electrical Characteristics 6.0V VCC Switch Positions 200-ohm Pulse Generator VIN Test VOUT D.U.T 10pF CL RT 200-ohm Switch tPLZ, tPZL (output on B-side) 6.0V tPHZ, tPZH (output on B-side) GND Prop Delay Open Notes: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator Test Circuit for Dynamic Electrical Characteristics S1 HP4195A VCC R1 T1 D.U.T HP11667A 10pF 5 50-ohm PS8803 12/13/05 PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethenet LAN Switch w/Single Enable and Enhanced ESD Protection Switching Waveforms 2.5V SEL 1.25V 3.5V 2.5V Input 0V 2.5V tPLH tPHL 1.5V Output 2.5V tPZL tPLZ VOH VDD/2 VOH Output 1.25V tPZH 2.5V VOL VOL +0.3V tPHZ VOH –0.3V VDD/2 VOL VOH VOL Output Voltage Waveforms Enable and Disable Times Voltage Waveforms Propagation Delay Times 3.5V 2.5V Data In tPLHX 1.5V tPHLX 3.5V VOH Data Out at Channel X I tSK(o) tPLH VOL VOH 2.5V Output VOL VOL tPLHy 1.5V tPHL VOH 2.5V Data Out at Channel Y 2.5V Input 2.5V tSK(p) = I tPHL – tPLH I tPHLy tSK(o) = I tPLHy – tPLHx I or I tPHLy – tPHLx I Pulse Skew - tSK(p) Output Skew - tSK(o) Notes: 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 ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. 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 IN Rail-to-Rail® minimizes power consumption. Power-Supply Sequencing Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply VCC before applying signals to the input/output or control pins. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd 6 PS8803 12/13/05 PI3L500-A 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethenet LAN Switch w/Single Enable and Enhanced ESD Protection Packaging Mechanical: 56-Contact TQFN (ZF) 9.50 REF. 3.50 REF. 5.00±0.10 11.00±0.10 8.40±0.10 Pin #1 Corner Pin #1 Corner 0.20 REF. 0.80 MAX. 0.50 TYP. (56x) Ordering Information Ordering Number Package Code Package Description PI3L500-AZFE ZF Pb-free & Green, 56-contact TQFN Notes: Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Add 'X' for Tape and Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 7 PS8803 12/13/05