PI3L720 2:1 Mux/DeMux Gigabit Ethernet LAN Switch with Power-down Mode Features Description • • • • • • • The PI3L720 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 B or C 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). 1:2 Gigabit LAN Switch Power-down support Low bit-to-bit skew: 200ps Very Low Crosstalk: –75dB @ 250MHz Status Indicator LEDs Switched with Ethernet pairs VDD Operating Range: +3.0V to +3.6V Enhanced ESD Protection (on A, B, C, LED pins): – 8kV (contact)(1) – 1.0kV (machine model), 11kV (human body model) • >650 MHz bandwidth • Packaging: – 56-contact TQFN (5 x 11mm, 0.5 pitch) – 42-contact TQFN (3.5 x 9mm, 0.5 pitch) – 42-contact TQFN (3.5 x 7mm, 0.4 pitch) The PI3L720 provides a Power Down input (PD), which can put the device into standby mode (PD=1) while mobile, eliminating an external power switch. 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 • Dual Physical Layer Device sharing to one interface connector, or one controller to dual connectors for docking • Routes signals for 10/100/1000 Mbit Ethernet Block Diagram A0+ B0+ A0- B0C0+ C0- A3+ B3+ A3- B3C3+ C3- LEDA0 LEDB0 LEDC0 LEDB1 LEDA1 Truth Table LEDC1 LEDB2 LEDA2 LEDC2 SEL PD 13-0008 POWER DOWN PD SEL Function L L AX to BX; LEDAX to LEDBX L H AX to CX; LEAX to LEDCX H x Hi-Z Note: 1. IEC 6100-4-2 1 PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode 13-0008 LEDC2 VDD 40 39 3 36 4 35 5 34 6 33 7 32 8 31 GND 9 B1C1+ C1VDD 29 B2+ 11 28 12 27 17 22 VDD 23 21 24 16 20 15 LEDC1 25 19 26 14 LEDC0 13 VDD A0+ A0VDD PD A1+ A1VDD A2+ A2A3+ A3SEL B0C0+ C0B1+ 10 Power Pin Configuration (42-TQFN ZL, Top-Side View) B0+ 30 VDD B2C2+ C2B3+ B3C3+ VDD LEDA0 LEDA1 C3- 2 VDD LEDB2 41 37 Select B0+ 28 GND LEDA2 38 2 18 VDD LEDA0 LEDA1 LEDB0 1 LEDB1 VDD A0+ A0VDD PD A1+ A1VDD A2+ A2A3+ A3SEL 42 Pin Configuration (42-TQFN ZH, Top-Side View) SEL 38 27 29 VDD 20 26 30 LEDA1 LEDC1 19 25 31 LEDA0 LEDC0 32 18 24 33 17 GND 34 16 23 35 15 LEDB1 36 14 22 13 21 37 GND 12 LEDB0 38 1 37 2 36 3 35 4 34 5 33 6 32 7 31 8 GND 9 B0C0+ C0B1+ B1C1+ C1- 30 VDD 29 B2+ B2C2+ C2- 10 28 11 27 12 26 13 25 14 24 15 23 16 22 21 39 11 VDD 40 GND Power Down. Active high, with internal pull-down resistor LEDC2 9 10 PD 39 41 LED I/O 20 42 8 LEDZX LEDC1 7 Ground LEDB2 43 GND 40 44 6 Port C LED Mux I/O 19 GND 5 CX+, CX- LEDC0 VDD 49 45 Port B Mux I/O LEDA2 LEDC2 50 4 BX+, BX- 41 LEDB2 51 46 Port A DeMux I/O 42 GND 52 47 3 AX+, AX- 18 LEDA2 53 2 B0+ B0C0+ C0GND B1+ B1C1+ C1GND VDD B2+ B2C2+ C2GND B3+ B3C3+ C3- Description 17 GND 54 48 Pin Name LEDB1 VDD 55 1 Pin Description LEDB0 GND A0+ A0VDD PD GND A1+ A1GND VDD A2+ A2GND A3+ A3GND SEL VDD 56 Pin Configuration (56-TQFN Top-Side View) B3+ B3C3+ C3- PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode 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 1000 Base-T Ethernet Switching over Operating Range (TA = –40°C to +85°C, VDD = 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 VDD = Max., IIN = –18mA – –0.7 –1.2 IIH Input HIGH Current VDD = Max., VIN = VDD – – ±2 IIL Input LOW Current VDD = Max., VIN = GND – – ±2 RON Switch On-Resistance(3) VDD = Min., 1.5V ≤ VIN ≤ VDD IIN = –40mA – 4.0 6.5 RFLAT(ON) On-Resistance Flatness(3) VDD = Min., VIN @ 1.5V and VDD IIN = –40mA – 0.5 – ΔRON On-Resistance match from center VDD = Min., 1.5V ≤ VIN ≤ VDD ports to any other port(3) IIN = –40mA – 0.4 1.0 Units V µA Ohm DC Electrical Characteristics for 10/100 Base-T Ethernet Switching over Operating Range (TA = –40°C to +85°C, VDD = 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 VDD = Max., IIN = –18mA – –0.7 –1.2 IIH Input HIGH Current VDD = Max., VIN = VDD – – ±2 IIL Input LOW Current VDD = Max., VIN = GND – – ±2 RON Switch On-Resistance(3) VDD = Min., 1.25V ≤ VIN ≤ VDD IIN = –10mA to –30mA – 4.0 6.5 RFLAT(ON) On-Resistance Flatness(3) VDD = Min., VIN @ 1.25V and VDD IIN = –10mA to –30mA – 0.5 – ∆RON On-Resistance match from cen- VDD = Min., 1.25V ≤ VIN ≤ VDD IIN = ter ports to any other port(3) –10mA to –30mA – 0.4 1.0 13-0008 3 PS8961D Units V µA Ohm 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Capacitance(TA = –40°C to +85°C, VDD = 3.3V ±10%) 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) Min. VIN = 0V, f = 1MHz Typ. Max. 2.0 3.0 3.0 6.0 8.0 11.0 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 VDD = 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. Power Supply Characteristics Test Conditions(1) Min. Typ.(2) Max. Units — 0.3 0.5 mA VDD = Max., VIN = VDD or GND 1.0 1.5 mA PD = 1, VDD = MAX, VIN = VDD or GND 0.15 0.25 mA Parameters Description IDD-Standby(3) IDD-Active(3) IDD-PD(3) Quiescent Power Supply Current VDD = Max., VIN = GND or VDD Active Power Supply Current Power Down Current Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VDD = 3.3V, Ta = 25°C ambient and maximum loading.. 3. Active power represents normal data communication. Standby power is when the device is enabled for operation but there is no LAN traffic (cable not connected). Power down current is the minimum power state used when not connected and mobile. 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. Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C, Parameter Description XTALK Crosstalk(3) OIRR OFF Isolation(3) Bandwidth –3dB(3) BW Test Conditions(1) RL = 100-Ohm, f = 250MHz RL = 100-Ohm VDD = 3.3V ±10%) Min. Typ.(2) Max. — –75 — — –35 — — 650 — Units dB MHz Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VDD = 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. 13-0008 4 PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Switching Characteristics (TA = -40°C to +85°C, VDD = 3.3V ± 10%) 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 Paramenter Description Max. 0.5 – 5.0 Output Skew between center port to any other port(3) – 0.1 0.2 tSK(p) Skew between opposite transitions of the same output (tPHL - tPLH) (3) – 0.1 0.2 tON/OFF Device enable / disable time from PD 100 200 tSK(o) Units 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 VDD = 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. 13-0008 5 PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Test Circuit for Electrical Characteristics 6.0V VDD 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 HP8753ES VDD T1 D.U.T HP11667A 13-0008 R1 10pF 6 50-Ohm PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Switching Waveforms 2.5V SEL 2.5V Input 0V 2.5V tPLH tPHL 1.5V Output 2.5V tPZL tPLZ VOH VDD/2 VOH Output 1.25V 1.25V 3.5V 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 = 50-Ohm, 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 VDD before applying signals to the input/output or control pins. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd 13-0008 7 PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Packaging Mechanical: 56-Contact TQFN (ZF) 1 DATE: 05/15/08 DESCRIPTION: 56-contact, Thin Fine Pitch Quad Flat No-lead (TQFN) PACKAGE CODE: ZF56 DOCUMENT CONTROL #: PD-2024 REVISION: C 08-0208 13-0008 8 PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Packaging Mechanical: 42-Contact TQFN (ZH) Notes: 1. All dimensions are in millimeters. Angles in degrees. 2. Coplanarity applies to the exposed pad as well as the terminals. 3. Refer JEDEC MO-220. 4. Recommended land pattern is for reference only. 5. Thermal pad soldering area DATE: 11/14/12 DESCRIPTION: 42-contact Thin Fine Pitch Quad Flat No-Lead (TQFN) PACKAGE CODE: ZH42 DOCUMENT CONTROL #: PD-2035 REVISION:D 12-0529 13-0008 9 PS8961D 12/10/12 PI3L720 2:1 Mux/DeMux Gigabit Ethenet LAN Switch with Power-down Mode Packaging Mechanical: 42-Contact TQFN (ZL) DATE: 01/29/09 DESCRIPTION: 42-Lead, Thin Fine Pitch Quad Flat No-Lead (TQFN) PACKAGE CODE: ZL42 DOCUMENT CONTROL #: PD-2082 REVISION: A 09-0071 Ordering Information Ordering Number Package Code Package Description PI3L720ZFE ZF Pb-free & Green, 56-contact TQFN PI3L720ZHE ZH Pb-free & Green, 42-contact TQFN (0.5mm pitch) PI3L720ZLE ZL Pb-free & Green, 42-contact TQFN (0.4mm pitch) Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. Add 'X' for Tape and Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 13-0008 10 PS8961D 12/10/12