PI3CH800
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8-Bit Bus Switch, Enable Low 1.8V/2.5V/3.3V,
High-Bandwidth, Hot Plug
Features
-
-
Description
The PI3CH800 is a low voltage, 8-channel switch
designed with fast individual enables. The switch
introduces no additional ground bounce noise or
additional propagation delay.
The PI3CH800 device has active low enables. It is
very useful in switching signals that have high
bandwidth (500 MHz).
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: –40º to +85º
C
C
8kV ESD Protection (human body model)
Latch-up Performance: >200mA per JESD17
Packaging (Pb-free & Green available):
-20-pin 150-mil wide plastic QSOP (Q)
-20-pin 173-mil wide plastic TSSOP (L)
-20-pin TQFN
Applications
High Bandwidth Data Switching
Hot-Docking
Analog Signal Switching
Differential Signal Switching
Pin Configuration
Block Diagram
TSSOP
QSOP
TQFN
Pin Description
Pin No
19
2, 3, 4, 5, 6,
7, 8, 9
7
11, 12, 13,
14, 15, 16,
17, 18
20
Truth Table
(1)
1111111
Pin Name
EN
A0-A7
GND
B0-B3
V
CC
Description
Switch Enables
A Ports
Ground
B Ports
Power
EN
H
L
Note:
Ax
Hi-Z
Bx
Function
Disconnect
Connect
1. H=High Voltage Level; L=Low Voltage Level;
Hi-Z=High Impedance
2015-07-0020
1
PT0477-3
08/05/15
PI3CH800
8-Bit Bus Switch, Enable Low 1.8V/2.5V/
3.3V, High-Bandwidth, Hot Plug
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Maximum Ratings
Storage Temperature ................................................................................... -65oC to +150oC
Ambient Temperature with Power Applied........................................
–40° to +85°
C
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 condi-
tions above those indicated in the operational sec-
tions 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, T
A
= -40 ~ +85º V
CC
=3.3V±
C,
10%, unless otherwise noted)
Symbol
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
Description
Control Input HIGH Voltage
Control Input LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input Low Current
High-Impedance Current
Switch On-Resistance
(3)
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Min., I
IN
= -18mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0 ≤ A, B ≤ V
CC
V
CC
= Min., V
IN
= 0.0V
I
ON
= -48mA or -64mA
V
CC
= Min., V
IN
= 3.6V
I
ON
= -15mA
Min
2.0
-0.5
-
-
-
-
-
-
Typ
(2)
-
-
-1.3
-
-
-
4
5
Max
-
0.8
-1.8
±
1
±
1
±
1
6
Unit
V
V
V
μA
μA
μA
Ω
8
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, T
A
= 25° ambient and maximum loading.
C
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 (Ax, Bx) pins.
2.5V supply (Over operating range, T
A
= -40 ~ +85º V
CC
=2.5V±
C,
10%, unless otherwise noted)
Symbol
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
Description
Control Input HIGH Voltage
Control Input LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input Low Current
High-Impedance Current
Switch On-Resistance
(3)
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
=
Max.,
I
IN
= -6mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0 ≤ A, B ≤ V
CC
V
CC
= Min., V
IN
= 0.0V
I
ON
= -48mA
V
CC
= Min., V
IN
= 2.25V
I
ON
= -15mA
Min
1.8
-0.3
-
-
-
-
-
-
Typ
(2)
-
-
-0.7
-
-
-
4
7
Max
V
CC
+0.3
0.8
-1.8
±
1
±
1
±
1
8
Unit
V
V
V
μA
μA
μA
Ω
14
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
=
2.5V,
T
A
= 25° ambient and maximum loading.
C
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 (Ax, Bx) pins.
2015-07-0020
2
PT0477-3
08/05/15
PI3CH800
8-Bit Bus Switch, Enable Low 1.8V/2.5V/
3.3V, High-Bandwidth, Hot Plug
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1.8V supply (Over operating range, T
A
= -40 ~ +85º V
CC
=1.8V±
C,
10%, unless otherwise noted)
Symbol
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
Description
Control Input HIGH Voltage
Control Input LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input Low Current
High-Impedance Current
Switch On-Resistance
(3)
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
=
Max.,
I
IN
= -6mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0 ≤ A, B ≤ V
CC
V
CC
= Min., V
IN
= 0.0V
I
ON
= -48mA
V
CC
= Min., V
IN
= 2.25V
I
ON
= -15mA
Min
1.2
-0.3
-
-
-
-
-
-
Typ
(2)
-
-
-0.7
-
-
-
4
10
Max
V
CC
+0.3
0.6
-1.8
±
1
±
1
±
1
8
Unit
V
V
V
μA
μA
μA
Ω
25
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
=
1.8V,
T
A
= 25° ambient and maximum loading.
C
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 (Ax, Bx) pins.
Capacitance
(T
A
= 25º f=1MHz)
C,
Symbol
(1)
C
IN
C
OFF
C
ON
Description
Input Capacitance
A/B Capacitance, Switch Off
A/B Capacitance, Switch On
V
IN
= 0V
Test Conditions
Typ
(2)
2.0
3.5
7.0
pF
Unit
Note:
1. These parameters are determined by device characterization but are not production tested
Power Supply Characteristics
Symbol
I
CC
Description
Quiescent Power Supply Current
Test Conditions
(1)
V
CC
= 3.6V, V
IN
= GND or V
CC
Min
-
Typ
0.2
Max
0.5
Unit
mA
Note:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
C
2. Typical values are at +25° ambient
Dynamic Electrical Characteristics
(Over Operating Range, T
A
= -40 ~ +85º V
CC
=3.3V±
C,
10%)
Symbol
Description
Test Conditions
X
TALK
O
IRR
BW
Crosstalk
Off-Isolation
-3dB Bandwidth
10MHz
10MHz
See test Diagram
Min
-
-
-
Typ
-60
-60
500
Max
-
-
-
Unit
dB
MHz
Switch Characteristics
Over 3.3V Operating Range
Symbol
t
PLH,
t
PHL
t
PZH,
t
PZL
t
PHZ,
t
PLZ
2015-07-0020
3
Description
Propagation Delay
(2, 3)
Ax to Bx, Bx to Ax
Enable Time EN to Ax or Bx
Disable Time EN to Ax or Bx
Test Conditions
(1)
See test Diagram
See test Diagram
See test Diagram
Min
-
1.5
1.5
Typ
-
-
-
Max
0.3
9.0
9.0
ns
Unit
PT0477-3
08/05/15
PI3CH800
8-Bit Bus Switch, Enable Low 1.8V/2.5V/
3.3V, High-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
t
PLH,
t
PHL
t
PZH,
t
PZL
t
PHZ,
t
PLZ
Description
Propagation Delay
(2, 3)
Ax to Bx, Bx to Ax
Enable Time EN to Ax or Bx
Disable Time EN to Ax or Bx
Test Conditions
(1)
See test Diagram
See test Diagram
See test Diagram
Min
-
1.5
1.5
Typ
-
-
-
Max
0.3
15.0
12.0
ns
Unit
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
t
PLH,
t
PHL
t
PZH,
t
PZL
t
PHZ,
t
PLZ
Description
Propagation Delay
(2, 3)
Ax to Bx, Bx to Ax
Enable Time EN to Ax or Bx
Disable Time EN to Ax or Bx
Test Conditions
(1)
See test Diagram
See test Diagram
See test Diagram
Min
-
1.5
1.5
Typ
-
-
-
Max
0.3
25.0
12.0
ns
Unit
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
V
CC
200Ω
Pulse
Generator
V
IN
D.U.T
RT
10pF
C
L
200Ω
V
OUT
Notes:
1. C
L
= Load capacitance: includes jig and probe capacitance.
2. R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator
3. All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50-ohm, t
R
≤ 2.5ns, t
F
≤ 2.5ns.
4. The outputs are measured one at a time with one transition per measurement.
2015-07-0020
4
PT0477-3
08/05/15
PI3CH800
8-Bit Bus Switch, Enable Low 1.8V/2.5V/
3.3V, High-Bandwidth, Hot Plug
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Switch Positions
Test
t
PLZ
, t
PZL
t
PHZ
, t
PZH
Prop Delay
Switch
6.0V
GND
Open
Test Circuit for Dynamic Electrical Characteristics
Switching Waveforms
Voltage Waveforms Enable and Disable Times
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 PI3CH400 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.
2015-07-0020
5
PT0477-3
08/05/15
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