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PI3L110
3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable
Features
* RON is 4s typical * Low crosstalk: -27dB @ 250MHz * Near-Zero propagation delay: 250ps * Switching speed: 9ns * Channel On capacitance: 9pF (typical) * VCC Operating Range: +3.0V to +3.6V * ESD>2000V . . . Human Body Model * >350 MHz bandwidth (or data frequency) * Packaging (Pb-free & Green available) 16-pin 150 mil wide plastic QSOP (Q) 16-pin 173 mil wide plastic TSSOP(L)
Description
Pericom Semiconductor's PI3L series of logic circuits are produced using the Company's advanced sub-micron CMOS technology, achieving industry leading performance. 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). 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 * Routes signals for 10/100 Mbit Ethernet
Block Diagram
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
Pin Configuration
S
IA0
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC
E
ID0 ID1
E S
IA1
YA
IB0 IB1
YD
IC0 IC1
YB GND
YA YB YC YD
YC
1
PS8690A
09/22/04
PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Truth Table(1)
E H L L S X L H YA Hi-Z
IA 0 IA 1
Pin Description
YB Hi-Z
IB0 IB1
YC Hi-Z
IC0 IC1
YD Hi-Z
ID 0 ID 1
Function Disable S=0 S=1
Note: 1. H = High Voltage Level L = Low Voltage Level
Pin Name IA N -ID N S E YA-YD GND VCC
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 ......................................... -65C to +150C 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 = -40C to +85C, VCC = 3.3V 10%) Paramenter VIH VIL VIK IIH IIL RON RFLAT(ON) RON Description Input HIGH Voltage Input LOW Voltage Clamp Diode Voltage Input HIGH Current Input LOW Current Switch On-Resistance(3) On-Resistance Flatness(4) On-Resistance match from center ports to any other port(4) Test Conditions Guaranteed HIGH level Guaranteed LOW level VCC = Max., IIN = -18mA VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., 1.25V VIN VCC , IIN = -10mA to -30mA VCC = Min., VIN @ 1.25V and VCC, IIN = -10mA to -30mA VCC = Min., 1.25V VIN VCC, IIN = -10mA to -30mA Min. 2.0 -0.5 - - - - - - Typ.(2) - - -0.7 - - 4.0 1 0.9 Max. - 0.8 -1.2 5 5 8.0 - 2.0 A V Units
2
PS8690A
09/22/04
PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Capacitance (TA = 25C, f = 1MHz)
Parameters(4) Description Input Capacitance Port IN Capacitance, Switch OFF YN/IN Capacitance, Switch ON VIN = 0V Test Conditions Typ. 2 4 9 Max. 3 6 10 pF Units CIN COFF(In) CON
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 = 25C 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.
Power Supply Characteristics
Parameters ICC Description Quiescent Power Supply Current Test Conditions(1) VCC = Max., VIN = GND or VCC Min. -- Typ.(2) -- Max. 800 Units
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 = 25C ambient and maximum loading. 3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Dynamic Electrical Characteristics Over the Operating Range
(TA = -40C to +85C, VCC = 3.3V 10%, GND = 0V) Parameter XTALK OIRR BW Description Crosstalk OFF Isolation Bandwidth -3dB Test Conditions RL = 50, f = 250MHz RL = 50 Min. -- -- -- Typ.(2) -40 -30 350 Max. -- -- -- Units dB MHz
Characteristics
Paramenter tPD tPZH, tPZL tPHZ, tPLZ tSK(p) Propagation Description Delay(2,3) Line Enable Time - S or E to YN, IN Line Disable Time - S to E to YN, IN Skew between opposite transitions of the same output (tPHL - tPLH) (2) Test Conditions Min. - 0.5 0.5 -
Typ.(2) 0.25 - - 0.1
Max. 15 9 0.2
Units
ns
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.
3
PS8690A
09/22/04
PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Test Circuit for Electrical Characteristics(1)
6.0V
VCC
200-ohm
Pulse Generator
VIN RT
D.U.T
VOUT 10pF CL
200-ohm
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 = 50, tR 2.5ns, tF 2.5ns. 5. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test tPLZ, tPZL tPHZ, tPZH Prop Delay Switch 6.0V GND Open
Test Circuit for Dynamic Electrical Characteristics
S1
HP4195A
R1
T1
VCC
HP11667A
D.U.T
10pF 50-ohm
4
PS8690A
09/22/04
PI3L110 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable Switching Waveforms
S or E
2.5V
1.25V
tPZL
1.25V 0V
3.5V Input tPLH
Output
2.5V
2.5V tPHL 2.5V 2.5V
VOL
Output
tPLZ
VDD/2
tPHZ
VOL +0.3V
VOH
VOL
VOH
1.5V
VOH
Output
tPZH
VDD/2
VOH -0.3V
VOL
Voltage Waveforms Enable and Disable Times
3.5V Input tPLH tPHL 2.5V
1.5V VOH
Output tSK(p) = I tPHL - tPLH I
2.5V
VOL
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 IN Rail-to-Rail(R) 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
5
PS8690A
09/22/04
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
3.81 3.99
.008 .013 0.20 0.33
Guage Plane
.010 0.254
1
.189 .197 4.80 5.00
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.015 x 45 0.38
.053 1.35 .069 1.75
Detail A
.008 0.203 REF
.007 .010
0.178 0.254
SEATING PLANE
.004 0.101 .010 0.254
0.41 .016 1.27 .050
.228 .244 5.79 6.19
.025 BSC 0.635
.008 .012 0.203 0.305
X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX
Packaging Mechanical: 16-Pin TSSOP (L)
16
.169 .177
4.3 4.5
1
.193 .201 4.9 5.1
.004 .008
0.09 0.20
.047 max. 1.20
SEATING PLANE
0.45 .018 0.75 .030
.252 BSC 6.4
.0256 BSC 0.65
.007 .012
.002 .006
0.05 0.15
X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
0.19 0.30
Ordering Information
Ordering Code PI3L110Q PI3L110QE PI3L110L PI3L110LE Package Code Q Q L L Package Description 16-pin 150-mil wide plastic QSOP Pb-free & Green, 16-pin 150-mil wide plastic QSOP 16-pin 173-mil wide plastic TSSOP Pb-free & Green, 16-pin 173-mil wide plastic TSSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/.
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
6
PS8690A 09/22/04

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