PI3CH3305
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2-Bit Bus Switch, Enable High 1.8V/2.5V/3.3V,
High-Bandwidth, Hot Plug
Features
Description
Near-Zero propagation delay
5-ohm switches connect inputs to outputs
High signal passing bandwidth (500 MHz)
Beyond Rail-to-Rail switching
- 0 to 5V switching with 3.3V power supply
- 0 to 3.3V switching with 2.5V power supply
5V I/O tolerant with supply in OFF and ON state
1.8V, 2.5V and 3.3V supply voltage operation
Hot Insertion Capable
Industrial Operating Temperature: -40ºC to +85ºC
8kV ESD Protection (human body model)
Latch-up Performance: >200mA per JESD17
Packaging (Pb-free & Green available):
-8-pin MSOP (U)
-8-pin TSSOP(L)
The PI3CH3305 is a Low-voltage, 2-channel switch
designed with fast individual enable. The switch creates
no additional ground bounce noise or propagation delay.
The PI3CH3305 device has an active High enable.
It is very useful in switching signals that have high
bandwidth (500 MHz).
Applications
High Bandwidth Data Switching
Hot-Docking
Analog Signal Switching
Differential Signal Switching
Pin Description
Pin Configuration
Description
Pin No
1, 7
2, 5
3, 6
Pin Name
ENx
A1, A2
B1, B2
Switch Enable
A Ports
B Ports
4
GND
VCC
Ground
1111111
8
Power
Truth Table(1)
ENx
Ax
Bx
VCC
Function
X
Hi-Z
Hi-Z
GND
Disconnect
L
Hi-Z
Hi-Z
VCC
Disconnect
Bx
Ax
VCC
Connect
H
Note:
Block Diagram
1. H=High Voltage Level; L=Low Voltage Level
Hi-Z= High Impedance.
2015-07-0013
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08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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Maximum Ratings
Storage Temperature ................................................................................... -65oC to +150oC
Ambient Temperature with Power Applied.........................................-40°C to +85°C
Supply Voltage to Ground Potential ............................................................-0.5V to + 4.6V
DC Input Voltage ............................................................................................-0.5V to + 6.0V
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
3.3V supply (Over operating range, TA = -40 ~ +85ºC, VCC=3.3V±10%, unless otherwise noted)
Symbol
Description
Test Conditions(1)
Min
Typ(2)
Max
Unit
VIH
Control Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
-
-
V
VIL
Control Input LOW Voltage
Guaranteed Logic LOW Level
-0.5
-
0.8
V
VIK
Clamp Diode Voltage
VCC = Min., IIN = -18mA
-
-1.3
-1.8
V
IIH
Input HIGH Current
VCC = Max., VIN = VCC
-
-
±1
μA
IIL
Input Low Current
VCC = Max., VIN = GND
-
-
±1
μA
0 ≤ A, B ≤ VCC
VCC = Min., VIN = 0.0V
ION = -48mA or -64mA
VCC = Min., VIN = 3.6V
ION = -15mA
-
-
±1
μA
-
4
6
-
5
8
IOZH
High-Impedance Current
RON
Switch On-Resistance(4)
(3)
Ω
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. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of
the voltages on the two (Ax, Bx) pins.
2.5V supply (Over operating range, TA = -40 ~ +85ºC, VCC=2.5V±10%, unless otherwise noted)
Symbol
Test Conditions(1)
Description
Min
Typ(2)
Max
Unit
VIH
Control Input HIGH Voltage
Guaranteed Logic HIGH Level
1.8
-
VCC+0.3
V
VIL
Control Input LOW Voltage
Guaranteed Logic LOW Level
-0.3
-
0.8
V
VIK
Clamp Diode Voltage
VCC = Max., IIN = -6mA
-
-0.7
-1.8
V
IIH
Input HIGH Current
VCC = Max., VIN = VCC
-
-
±1
μA
IIL
Input Low Current
VCC = Max., VIN = GND
-
-
±1
μA
-
-
±1
μA
-
4
8
-
7
14
IOZH
High-Impedance Current
RON
Switch On-Resistance(4)
(3)
0 ≤ A, B ≤ VCC
VCC = Min., VIN = 0.0V
ION = -48mA
VCC = Min., VIN = 2.25V
ION = -15mA
Ω
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 = 2.5V, TA = 25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of
the voltages on the two (Ax, Bx) pins.
2015-07-0013
PT0468-4
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08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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1.8V supply (Over operating range, TA = -40 ~ +85ºC, VCC=1.8V±10%, unless otherwise noted)
Symbol
Description
Test Conditions(1)
Min
Typ(2)
Max
Unit
VIH
Control Input HIGH Voltage
Guaranteed Logic HIGH Level
1.2
-
VCC+0.3
V
VIL
Control Input LOW Voltage
Guaranteed Logic LOW Level
-0.3
-
0.6
V
VIK
Clamp Diode Voltage
VCC = Min., IIN = -18mA
-
-0.7
-1.8
V
IIH
Input HIGH Current
VCC = Max., VIN = VCC
-
-
±1
μA
IIL
Input Low Current
VCC = Max., VIN = GND
-
-
±1
μA
0 ≤ A, B ≤ VCC
VCC = Min., VIN = 0.0V
ION = -48mA
VCC = Min., VIN = 1.6V
ION = -15mA
-
-
±1
μA
-
4
8
-
10
25
IOZH
High-Impedance Current
RON
Switch On-Resistance(4)
(3)
Ω
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 = 1.8V, TA = 25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of
the voltages on the two (Ax, Bx) pins.
Capacitance (TA = 25ºC, f=1MHz)
Symbol(1)
Description
CIN
Input Capacitance
COFF
A/B Capacitance, Switch Off
CON
A/B Capacitance, Switch On
Typ(2)
Test Conditions
Unit
2.0
VIN = 0V
3.5
pF
7.0
Note:
1. These parameters are determined by device characterization but are not production tested
Power Supply Characteristics
Symbol
Description
ICC
Quiescent Power Supply Current
Test Conditions(1)
VCC = 3.6V, VIN = GND or VCC
Min
Typ(2)
-
0.2
Max
Unit
0.5
mA
Note:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at +25°C ambient.
Dynamic Electrical Characteristics
(Over Operating Range, TA = -40 ~ +85ºC, VCC=3.3V±10%)
Symbol
Description
XTALK
Crosstalk
OIRR
BW
Test Conditions
Min
Typ
Max
See test Diagram
-
-60
-
Off-Isolation
See test Diagram
-
-60
-
-3dB Bandwidth
See test Diagram
-
500
-
Unit
dB
MHz
Switch Characteristics
Over 3.3V Operating Range
Symbol
tPLH, tPHL
tPZH, tPZL
tPHZ, tPLZ
Test Conditions(1)
See test Diagram
See test Diagram
See test Diagram
Description
Propagation Delay(2, 3) Ax to Bx, Bx to Ax
Enable Time ENx to Ax or Bx
Disable Time ENx to Ax or Bx
2015-07-0013
Min
1.5
1.5
Typ
-
Max
0.3
9.0
9.0
PT0468-4
3
Unit
ns
08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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Note:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The switch contributes no propagation 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 0.30ns for 10pF load. Since this time constant is much smaller than the rise/fall times
of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the switch when used in a system is
determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
Over 2.5V Operating Range
Symbol
Test Conditions(1)
Description
(2, 3)
tPLH, tPHL
Propagation Delay
Ax to Bx, Bx to Ax
Min
Typ
Max
See test Diagram
-
-
0.3
tPZH, tPZL
Enable Time ENx to Ax or Bx
See test Diagram
1.5
-
15.0
tPHZ, tPLZ
Disable Time ENx to Ax or Bx
See test Diagram
1.5
-
15.0
Unit
ns
Note:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The switch contributes no propagation 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 0.30ns for 10pF load. Since this time constant is much smaller than the rise/fall times
of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the switch when used in a system is
determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
Over 1.8V Operating Range
Symbol
Test Conditions(1)
Description
Min
Typ
Max
tPLH, tPHL
Propagation Delay(2, 3) Ax to Bx, Bx to Ax
See test Diagram
-
-
0.3
tPZH, tPZL
Enable Time ENx to Ax or Bx
See test Diagram
1.5
-
25.0
tPHZ, tPLZ
Disable Time ENx to Ax or Bx
See test Diagram
1.5
-
12.0
Unit
ns
Note:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The switch contributes no propagation 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 0.30ns for 10pF load. Since this time constant is much smaller than the rise/fall times
of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the switch when used in a system is
determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
Test Circuit for Electrical Characteristics
6.0V
VCC
200Ω
Pulse
Generator
VIN
VOUT
D.U.T
RT
Notes:
1.
2.
3.
4.
10pF
CL
200Ω
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50-ohm, tR ≤ 2.5ns, tF ≤
2.5ns.
The outputs are measured one at a time with one transition per measurement.
2015-07-0013
PT0468-4
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08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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Switch Positions
Test
Switch
tPLZ, tPZL
6.0V
tPHZ, tPZH
GND
Prop Delay
Open
Test Circuit for Dynamic Electrical Characteristics
HP4195A
S1
R1
T1
VCC
D.U.T
HP11667A
10pF
50Ω
Switching Waveforms
Voltage Waveforms Enable and Disable Times
Pulse Skew - tSK(p)
2015-07-0013
PT0468-4
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08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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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, EN
may be driven LOW to 0V and HIGH to 3.6V. Driving EN Rail-to-Rail® minimizes power consumption.
Hot Insertion
For Datacom and Telecom applications that have ten or more volts passing through the backplane, a high voltage from the
power supply may be seen at the device input pins during hot insertion. The PI3CH3305 devices have maximum limits of 6V
and 120mA for 20ns. If the power is higher or applied for a longer time or repeatedly reaches the maximum limits, the devices
can be damaged.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
2015-07-0013
PT0468-4
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08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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Mechanical Information
8-Pin MSOP(U)
2015-07-0013
PT0468-4
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08/05/15
PI3CH3305
2-Bit Bus Switch, Enable High,
1.8V/2.5V/3.3VHigh-Bandwidth, Hot Plug
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8-Pin TSSOP(L)
Ordering Information
Package Cede
Part No.
PI3CH3305UE
Package
Lead free and Green 8-Pin MSOP
Lead free and Green 8-Pin MSOP,
Tape& Reel
Lead free and Green 8-Pin TSSOP
Lead free and Green 8-Pin TSSOP
Tape& Reel
U
U
PI3CH3305UEX
PI3CH3305LE
L
L
PI3CH3305LEX
Note:
E = Pb-free & Green
Adding X Suffix= Tape/Reel
Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com
Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply
the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The
company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.
2015-07-0013
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