PERICOM PI3L500

PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch with Single Enable
Features
Description
•
•
•
•
•
•
•
•
•
•
•
•
Pericom Semiconductor’s PI3L series of switch circuits are produced
using the Company’s advanced sub-micron CMOS technology,
achieving industry leading performance.
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)
Live Insertion Capable
Status Indicator LEDs Switched with Ethernet pairs
VCC Operating Range: +3.0V to +3.6V
ESD>3000V . . . Human Body Model
>350 MHz bandwidth (or data frequency)
Packaging:
· Pb-free and Green 56-contact TQFN (ZF)
The PI3L500 is a 16- to 8- Channel 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.
· 56-contact TQFN (ZF)
Applications
• 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
PS8719A
03/01/05
PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch w/Single Enable
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
PS8719A
03/02/05
PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch w/Single Enable
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
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(4)
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(4)
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
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(4)
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(4)
–10mA to –30mA
–
0.4
1.0
3
PS8719A
Units
V
µA
Ω
03/02/05
PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch w/Single Enable
Capacitance (TA = 25°C, f = 1MHz)
Parameters(5)
Description
CIN
Input Capacitance
COFF(B1, B2)
Port B Capacitance, Switch OFF
CON(A/B)
A/B Capacitance, Switch ON
Test Conditions
Typ.
Max.
2.0
3.0
4.0
6.0
10.0
11.0
VIN = 0V
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.
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
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. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C,
Parameter
Description
XTALK
Crosstalk
OIRR
OFF Isolation
BW
Bandwidth –3dB
Test Conditions
RL = 100Ω, f = 250MHz
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(2,3)
–
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(2)
) (2)
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.
4
PS8719A
03/02/05
PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch w/Single Enable
Test Circuit for Electrical Characteristics(1)
6.0V
VCC
200-ohm
Pulse
Generator
VIN
D.U.T
VOUT
10pF
CL
RT
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 = 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 (output on B-side)
6.0V
tPHZ, tPZH (output on B-side)
GND
Prop Delay
Open
Test Circuit for Dynamic Electrical Characteristics
S1
HP4195A
VCC
R1
T1
D.U.T
HP11667A
10pF
5
50-ohm
PS8719A
03/02/05
PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch w/Single Enable
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)
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
PS8719A
03/02/05
PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch w/Single Enable
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
PI3L500ZFEX
ZF
Pb-free & Green, 56-contact TQFN
PI3L500ZFX
ZF
56-contact TQFN
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. Number of Transistors = TBD
3. X = Tape and Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
7
PS8719A
03/02/05