A product Line of
Diodes Incorporated
PI3C3861−A
2.5V/3.3V, High Bandwidth, Hot-Insertion, 10-Bit, 2-Port, Bus Switch
Features
Description
¼¼ Near-Zero propagation delay
¼¼ 5-ohm switches connect inputs to outputs
¼¼ High bandwidth (>400 MHz)
¼¼ Rail-to-rail 2.5V or 3.3V switching
¼¼ 5V I/O Tolerant
¼¼ 2.5V Supply Voltage Operation
¼¼ Permits Hot-Insertion
¼¼ Packaging (Pb-free & Green):
– 24-pin 150-mil wide plastic QSOP (Q)
PI3C series of logic circuits are produced using the company's
advance submicron CMOS technology, achieving industry leading
performance.
The PI3C3861-A is a 10-bit, 2.5volt or 3.3 volt, 2-port bus switch
designed with a low On-Resistance (5-ohm) allowing inputs
to be connected directly to outputs. The bus switch creates no
additional propagational delay or additional ground bounce noise.
The switches are turned ON by the Bus Enable (BE) input signal. This
device is very userful in switching signals that have high bandwidth
(>400 MHz).
Applications
¼¼ High bandwidth data switching
¼¼ Hot Docking
Block Diagram
Pin Configuration
A0
B0
A9
B9
BE
Truth Table(1)
BE
A0–9
Disconnect
H
Hi-Z
Connect
L
B0–9
Pin Name
BE
A0–9
B0–9
GND
VCC
Note:
1. H = High Voltage Level, L = Low Voltage Level
Hi-Z = High Impedance
Document Number DS40433 Rev 1-2
1
24
VCC
A0
2
23
BE
A1
3
22
B0
A2
4
21
B1
A3
5
20
B2
A4
6
19
B3
A5
7
18
B4
A6
8
17
B5
A7
9
16
B6
A8
10
15
B7
A9
11
14
B8
GND
12
13
B9
Pin Description
Function
PI3C3861-A
NC
1
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
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Diodes Incorporated
A product Line of
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PI3C3861−A
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 (Inputs & Vcc Only)... –0.5V to +4.6V
Supply Voltage to Ground Potential (Outputs & D/O Only).–0.5V to +4.6V
DC Input Voltage.................................................................. –0.5V to +5.5V
DC Output Current............................................................................. 120mA
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.
Power Dissipation................................................................................. 0.5W
DC Electrical Characteristics (Over Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Parameters
Description
Test Conditions(1)
Min.
Typ(2)
Max.
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
VIK
Clamp Diode Voltage
RON
Switch On-Resistance(3)
Units
V
0.8
µA
±1
VCC = Min., IIN = –18mA
–0.73
–1.2
VCC = Min., VIN = 0V, ION = 48mA
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
CON
A/B Capacitance, Switch On
Test Conditions
Typ.
Units
6.0
VIN = 0V
5.0
pF
10.0
Notes:
1.
This parameter is determined by device characterization but is not production tested.
PI3C3861-A
Document Number DS40433 Rev 1-2
2
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Diodes Incorporated
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PI3C3861−A
Power Supply Characteristics
Parameters(4) Description
Quiescent Power Supply
Current
ICC
Test Conditions(1)
VCC = Max.
Min.
VIN = GND or VCC
Typ.(2)
Max.
Units
260
500
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 TTL driven input (control input only); A and B pins do not contribute to Icc.
4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs
generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
Switching Characteristics over 3.3V Operating Range
Parameters
Description
Test Conditions
Min.
Delay(1,2)
tPLH
tPHL
Propagation
Ax to Bx, Bx to Ax
tPZH
tPZL
Bus Enable Time
BE to Ax or Bx
tPHZ
tPLZ
Bus Disable Time
BE to Ax or Bx
Com.
Max.
Units
0.25
CL = 50pF
RL = 500-ohm
1.5
6.5
1.5
5.5
ns
Notes:
1.
This parameter is guaranteed but not tested on Propagation Delays.
2.
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
Parameters
Description
Test Conditions
Min.
Delay(1,2)
tPLH
tPHL
Propagation
Ax to Bx, Bx to Ax
tPZH
tPZL
Bus Enable Time
BE to Ax or Bx
tPHZ
tPLZ
Bus Disable Time
BE to Ax or Bx
Com.
Max.
Units
0.25
CL = 50pF
RL = 500-ohm
1.5
9.8
1.5
8.3
ns
Notes:
1.
This parameter is guaranteed but not tested on Propagation Delays.
2.
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.
PI3C3861-A
Document Number DS40433 Rev 1-2
3
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Diodes Incorporated
A product Line of
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PI3C3861−A
4.0
VCC = 3.3V
3.8V
3.6V
3.1V
2.9V
2.7V
2.5V
3.4V
3.2V
3.0V
2.8V
V OUT , (V)
2.3V
2.0
0.0
0.0
1.0
3.0
2.0
4.0
5.0
V IN , (V)
Output Voltage vs. Input Voltage over Various Supply Voltages
Part Marking
Q Package
PI3C
3861-AQE
YYWWZG
YYWW: Date Code (Year & Workweek)
1st G: Assembly Site Code
2nd G: Fab Site Code
PI3C3861-A
Document Number DS40433 Rev 1-2
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Diodes Incorporated
A product Line of
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PI3C3861−A
Packaging Mechanical: 24-QSOP (Q)
16-0059
For latest package info.
please check: http://www.diodes.com/design/support/packaging/pericom-packaging/packaging-mechanicals-and-thermal-characteristics/
Ordering Information
Ordering Code
PI3C3861-AQEX
Package Code
Q
Package Description
24-pin, 150mil Wide (QSOP)
Notes:
1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.
2. See http://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, “Green” and Lead-free.
Thermal characteristics can be found on the company web site at www.diodes.com/design/support/packaging/
3. E = Pb-free and Green
4. X suffix = Tape/Reel
PI3C3861-A
Document Number DS40433 Rev 1-2
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Diodes Incorporated
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PI3C3861−A
IMPORTANT NOTICE
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE
LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice
to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any
product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of
this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
whose products are represented on Diodes Incorporated website, harmless against all damages.
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the Chief Executive Officer of Diodes Incorporated. As used herein:
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products in such safety-critical, life support devices or systems.
Copyright © 2016, Diodes Incorporated
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PI3C3861-A
Document Number DS40433 Rev 1-2
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