A product Line of
Diodes Incorporated
PI3C3305/PI3C3306
2.5V/3.3V, High-Bandwidth, Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
Features
Description
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• High Bandwidth (>400 MHz)
• Rail-to-Rail, 3.3V or 2.5V Switching
• 5V I/O Tolerant
• 2.5V Supply Voltage Operation
• Permits Hot Insertion
• Packaging:
– 8-pin 173-mil wide plastic TSSOP
– 8-pin 118-mil wide plastic MSOP
PI3C3305 and PI3C3306 are 2.5 volt or 3.3 volt, 2-bit bus switches
designed with fast individual enables. When enabled via the
associated Bus Enable (BE) pin, the “A” pin is directly connected
to the “B” pin for that particular gate. The bus switch introduces
no additional propagation delay or additional ground bounce noise.
The PI3C3306 device has active LOW enables, and the PI3C3305
has active HIGH enables. It is very useful in switching signals that
have high bandwidth (>400 MHz).
Applications
• High Bandwidth Data Switching
• Hot Docking
PI3C3306 Block Diagram
PI3C3305 Block Diagram
B1
A1
B1
A1
BE1
BE1
A2
A2
B2
B2
BE2
BE2
PI3C3306 8-Pin Configuration
PI3C3305 Pin Configuration
BE1
A1
B1
GND
VCC
BE2
B2
A2
BE1
A1
B1
GND
Truth Table(1)
Pin Description
PI3C3306
BEn
PI3C3305
BEn
X
X(2)
H
L
L
H
An
VCC
Function
Hi-Z Hi-Z
GND
Disconnect
Hi-Z Hi-Z
V CC
Disconnect
V CC
Connect
Bn
Bn
An
Notes:
1. H = High Voltage Level; L = Low Voltage Level;
Hi-Z = High Impedance; X = Don’t Care
2. A pull-up resistor should be provided for power-up protection.
PI3C3305/PI3C3306
VCC
BE2
B2
A2
Document Number DS40259 Rev 1-2
1
Pin Name
Description
BEn
Switch Enable (PI3C3305)
BEn
Switch Enable (PI3C3306)
A2-A1
Bus A
B2-B1
Bus B
V CC
Power
GND
Ground
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Diodes Incorporated
A product Line of
Diodes Incorporated
PI3C3305/PI3C3306
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature............................................................. –65°C to +150°C
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 +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 (Over Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Parameters
Description
Test Conditions(1)
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
–0.5
IIH
Input HIGH Current
VCC = Max., VIN = VCC
±1
IIL
Input LOW Current
VCC = Max., VIN = GND
±1
IOZH
High Impedance Output
Current
0 ≤ A, B ≤ VCC
±1
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
RON
Switch On Resistance(3)
Min.
Typ.(2)
Max.
Units
V
0.8
µA
–0.73
–1.2
VCC = Min., VIN = 0.0V, ION = 48mA or 60mA
5
7
VCC = Min., VIN = 2.4V, ION = 15mA
8
15
V
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. 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
(A,B) pins.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(1) Description
CIN
Input Capacitance
COFF
A/B Capacitance, Switch Off
Test Conditions
Typ.
Units
3.5
VIN = 0V
5.0
CON
A/B Capacitance, Switch On
Notes:
1. This parameter is determined by device characterization but is not production tested.
pF
10.0
Power Supply Characteristics
Parameters
Description
Test Conditions(1)
ICC
Quiescent Power Supply Current
VCC = Max.
VIN = GND or VCC
VCC = Max.
3.0V(3)
ΔICC
Supply Current per Input HIGH
VIN =
Min.
Typ.(2)
Max.
260
500
750
Units
µA
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per driven input (control input only); A and B pins do not contribute to ΔICC.
PI3C3305/PI3C3306
Document Number DS40259 Rev 1-2
2
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Diodes Incorporated
A product Line of
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PI3C3305/PI3C3306
Switching Characteristics over 3.3V Operating Range
3305/3306
Parameters
Description
Conditions(1)
Test
Com
Min.
tPLH
tPHL
Propagation Delay(2, 3) A to B, B to A
tPZH
tPZL
Bus Enable Time
tPHZ
tPLZ
Bus Disable Time
Units
Max.
CL = 50pF
RL = 500Ω
CL = 50pF
RL = 500Ω
R = 500Ω
0.25
1.5
6.5
1.5
5.5
ns
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
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 50pF 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 interaction with the load on the driven side.
Switching Characteristics over 2.5V Operating Range
3305/3306
Parameters
Description
Test
Conditions(1)
Com
Min.
tPLH
tPHL
Propagation Delay(2, 3) A to B, B to A
tPZH
tPZL
Bus Enable Time
tPHZ
tPLZ
Bus Disable Time
CL = 50pF
RL = 500Ω
CL = 50pF
RL = 500Ω
R = 500Ω
Units
Max.
0.25
1.5
9.8
1.5
8.3
ns
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
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 50pF 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 interaction with the load on the driven side.
PI3C3305/PI3C3306
Document Number DS40259 Rev 1-2
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PI3C3305/PI3C3306
Test Circuits
Switch Position
Test
Disable LOW
Enable LOW
Disable HIGH
Enable HIGH
tPD
6V
VCC
Open
Pulse
Generator
VIN
500Ω
VOUT
D.U.T.
50pF
RT
500Ω
CL
Switch
6V
6V
GND
GND
Open
Definitions:
CL = Load capacitance (includes jig and probe capacitance)
RT = Termination resistance (should be equal to ZOUT of the pulse generator)
Enable and Disable Timing
Propagation Delay
Disable
Enable
3V
1.6V
Control
Input
0V
t PLZ
t PZL
Switch
Output
Normally
Low
3V
t PZH
Output
Normally
High
0.3V
1.5V
Output
VOL
0V
t PHL
V OH
1.5V
1.5V
V OL
t PZH
Switch
GND
1.5V
0.3V
0V
VOH
t PLH
0V
Document Number DS40259 Rev 1-2
t PHL
Opposite Phase
Input Transistion
1. Input Control Enable = Low Input Control Device = High
2. Pulse Generator total pulses
Rate ≤1.0 MHz; Z OUT ≤50-Ohms; tF, tR ≤2.5ns
PI3C3305/PI3C3306
1.5V
t PLH
3V
1.5V
3V
Same Phase
Input Translation
1.5V
4
3V
1.5V
0V
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A product Line of
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PI3C3305/PI3C3306
VOUT, (V)
4.0
VCC = 3.3V
3.1V
2.9V
2.7V
2.5V
3.8V
3.6V
3.4V
3.2V
3.0V
2.3V
2.8V
2.0
0.0
0.0
1.0
3.0
2.0
4.0
5.0
VIN, (V)
Output Voltage vs. Input Voltage over Various Supply Voltages
Output Voltage vs. Input Voltage over Various Supply Voltages
Application Information
Logic Inputs
The logic control inpus can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, IN may be
driven LOW to 0V and HIGH to 3.6V. Driving IN Rail-toRail® 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.
PI3C3305/PI3C3306
Document Number DS40259 Rev 1-2
5
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Diodes Incorporated
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PI3C3305/PI3C3306
Packaging Mechanical: 8-Pin TSSOP (L)
16-0062
PI3C3305/PI3C3306
Document Number DS40259 Rev 1-2
6
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Diodes Incorporated
A product Line of
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PI3C3305/PI3C3306
Packaging Mechanical: 8-Pin MSOP (U)
For latest package info.
please check: http://www.diodes.com/design/support/packaging/pericom-packaging/packaging-mechanicals-and-thermal-characteristics/
Ordering Information
Ordering Code
Package Code
Description
PI3C3305LEX
L
8-pin 173-mil wide (TSSOP)
PI3C3305UEX
U
8-pin, Mini Small Outline Package (MSOP)
PI3C3306LEX
L
8-pin 173-mil wide (TSSOP)
PI3C3306UEX
U
8-pin, Mini Small Outline Package (MSOP)
Notes:
• Thermal characteristics can be found on the company web site at www.diodes.com/design/support/packaging/
• E = Pb-free and Green
• X suffix = Tape/Reel
PI3C3305/PI3C3306
Document Number DS40259 Rev 1-2
7
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PI3C3305/PI3C3306
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE
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the Chief Executive Officer of Diodes Incorporated. As used herein:
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Copyright © 2016, Diodes Incorporated
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Document Number DS40259 Rev 1-2
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