1PS8760 02/01/05
Pin Description
Pin Name Description
IAN, IBNData Inputs
S0-1 Select Inputs
EN Enable
YA to YBData Outputs
GND Ground
VCC Power
Truth Table(1)
Enable Select
EN S1S0Y Function
H X X Hi-Z Disable
L L L I0 S1-0 = 0
L L H I1 S1-0 = 1
L H L I2 S1-0 = 2
L H H I3 S1-0 = 3
Notes:
1. H=High Voltage Level; L=Low Voltage Level
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• High signal passing bandwidth (300MHz)
• Beyond Rail-to-Rail switching
• 5V I/O tolerant with 3.3V supply
• 2.5V and 3.3V supply voltage operation
• Hot insertion capable
• Industrial operating temperature: -40ºC to +85ºC
• 2KV ESD Protection (human body model)
• Latch-up performance >250mA per JESD17
• Packaging (Pb-free & Green available):
– 16-pin 150-mil wide plastic QSOP (Q)
– 16-pin 173-mil wide plastic TSSOP (L)
– 20-contact TQFN (ZH)
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Description
The PI3USB14 is a 2-channel, 4:1 Multiplexer/Demultiplexer with
3-state outputs. The switch introduces no additional ground bounce
noise or propagation delay.
The PI3USB14 device is very useful in switching USB 2.0 signals
and others that have high bandwidth (300MHz).
PI3USB14
Block Diagram
IA0
EN
S0
S1
IA1
IA2
IA3
IB0
IB1
IB2
IB3
YA
YB
Pin Conguration
Notes:
1. N.C. = No internal connection
1
2
3
4
5
16
6
15
7
14
8
13
12
11
10
9
EN
S1
IA3
IA2
IA1
IA0
YA
GND
VCC
N.C.
S0
IB3
IB2
IB1
IB0
YB
N.C.
N.C.
S0
IB3
IB2
IB1
IB0
YB
EN
S1
IA3
IA2
IA1
IA0
YA
N.C.
GND
N.C.
N.C.
VCC
19�
18
17
16
15
14
13
12
120
10 11
2
3
4
5
6
7
8
9
2PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
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 +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 specication is not implied. Ex-
posure to absolute maximum rating conditions for extended
periods may affect reliability.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
DC Electrical Characteristics, 3.3V Supply (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Parameters Description Test Conditions(1) Min. Typ.(2) Max. Units
VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0
VVIL Input LOW Voltage Guaranteed Logic LOW Level 0.8
VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA -1.3 –1.8
IIH Input HIGH Current VCC = Max., VIN = VCC ±1
µAIIL Input LOW Current VCC = Max., VIN = GND ±1
IOZH High Impedance Output Current 0 ≤ Y, In ≤ VCC ±1
RON Switch On-Resistance(4)
VCC = Min., VIN = 0.0V,
ION = 48 mA or -64mA 46Ω
VCC = Min., VIN = 3.6V, ION = -15 mA 5 8
DC Electrical Characteristics, 2.5V Supply (Over Operating Range, TA = –40°C to +85°C, VCC = 2.5V ± 10%)
Parameters(5) Description Test Conditions Min. Typ. Max. Units
VIH Input HIGH Voltage Guaranteed Logic HIGH Level 1.8 VCC + 0.3
VVIL Inout LOW Voltage Guaranteed Logic LOW Level –0.3 0.8
VIK Clamp Diode Voltage VCC = Max., IIN = –6mA –0.7 –1.8
IIH Input HIGH Current VCC = Max., VIN = VCC ±1
µAIIL Input LOW Current VCC = Max., VIN = GND ±1
IOZH High Impedance Current(3) 0 ≤ Y, In ≤ VCC ±1
RON Switch On Resistance(4)
VCC = Min., VIN = 0.0V,
ION = –48mA 6 8
Ω
VCC = Min., VIN = 2.25V,
ION = -15mA 7 14
3PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Notes:
1. For Max. or Min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per LVTTL driven input (control inputs only); Y and In pins do not contribute to ICC. This parameter is guaranteed, but not production tested.
Notes:
1. For Max. or Min. conditions, use appropriate value specied 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 Y and In pin at indicated current through the switch. On-Resistance is determined
by the lower of the voltages on the two (Y, In) pins.
5. This parameter is determined by device characterization but is not production tested.
Capacitance (TA = 25°C f = 1 MHz)
Parameters(5) Description Test Conditions Typ. Units
CIN Input Capacitance
VIN = 0V
3.0
pF
COFF(IN) In Capacitance, Switch Off 3.5
COFF(Y) Y Capacitance, Switch Off 12
CON Y/In Capacitance, Switch On 15.0
Power Supply Characteristics
Parameters Description Test Conditions(1) Min. Typ.(2) Max. Units
ICC Quiescent Power Supply Current VCC = 3.6V, VIN = GND or VCC 0.8 mA
4PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Switching Characteristics over 2.5V Operating Range
Parameters Description Conditions(1) Com. Units
Min. Max.
tPLH
tPHL Propogation Delay(2,3) Y to In, In to Y See Test Diagram 0.3
ns
tPZH
tPZL Enable Time S or EN to Y or In
See Test Diagram
1.5 15.0
tPHZ
tPLZ Disable Time S or EN to Y or In 1.5 12.0
Switching Characteristics over 3.3V Operating Range
Parameters Description Conditions(1) Com. Units
Min. Typ. Max.
tPLH
tPHL Propogation Delay(2,3) Y to In, In to Y See Test Diagram 0.3
ns
tPZH
tPZL Enable Time S or EN to Y or In
See Test Diagram
1.5 9.0
tPHZ
tPLZ Disable Time S or EN to Y or In 1.5 9.0
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The 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 0.30ns 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 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.
Dynamic Electrical Characteristics Over the Operating Range (TA = -40º to +85º, VCC = 3.3V ± 10%)
Parameter Description Test Condition Min. Typ. Max. Units
XTALK Crosstalk See Test Diagram -60 dB
OIRR Off-Isolation See Test Diagram -60
BW -3dB Bandwidth See Test Diagram 200 300 MHz
5PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Test Circuit for Electrical Characteristics(1)
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.
Test Circuit for Dynamic Electrical Characteristics
RT
10pF
CL
VCC
VIN VOUT
200-ohm
200-ohm
6.0V
Pulse
Generator D.U.T
VCC
D.U.T
T1R1
S1
HP11667A
50-ohm10pF
HP4195A
Switch Positions
Test Switch
tPLZ, tPZL 6.0V
tPHZ, tPZH GND
Prop Delay Open
6PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Switching Waveforms
Pulse Skew - tSK(p)
Voltage Waveforms Enable and Disable Times
Input
tPLH
2.5V 2.5V
2.5V 2.5V
tPHL
3.5V
1.5V
Output
VOH
VOL
tPLZ
1.25V
1.25V
2.5V
VOH
0V
VDD/2
VDD/2
tPHZ
tPZL
tPZH
Output
Output
VOL +0.3V
VOL
VOH
VOH -0.3V
S or EN
VOL
Input
Output
tPLH
tSK(p) = I tPHL – tPLH I
tPHL
3.5V
2.5V
2.5V
VOL
VOH
1.5V
7PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Applications Information
Logic Inputs
The logic control inputs can be driven upto 3.6Vregardless of the supply voltage. For example, given a +3.3V supply, EN maybe
driven LOW to 0V and HIGH to 3.6V. Driving EN Rail-to-Rail® minimizes power consumption.
Power Supply-Sequencing
Proper power supply sequencing is recommended for all CMOS devices. Always apply VCC before applying signals to the input/
output or control pins.
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 PI3CHxx 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.
Packaging Mechanical: 16-pin QSOP (Q)
.189
.197
.053
.069
.004
.010
SEATING
PLANE
.025
BSC
.007
.010
.228
.244
1
16
.150
.157
.016
.050
X.XX
X.XX
DENOTES DIMENSIONS IN MILLIMETERS
0.635
4.80
5.00
1.35
1.75
5.79
6.19
0.101
0.254
.008
.012
0.203
0.305
3.81
3.99
0.178
0.254
0.38
0.41
1.27
.008
0.203
.015 x 45°
REF
Detail A
Detail A
.008
0.20
MIN.
Guage Plane
.010
0.254
.041
1.04
REF
.016
.035
0.41
0.89
0˚-6˚
.008
.013
0.20
0.33
8PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Packaging Mechanical: 16-pin TSSOP (L)
Packaging Mechanical: 20-Contact TQFN (ZH)
1.50 REF.
0.40±0.10 0.50 TYP. (14X) 0.25±0.05
C 0.35
2.05±0.10
3.05±0.10
3.50±0.10
4.50±0.10 (S) 3.50 REF.
0.20 REF.
0.0-0.05
Pin 1
Pin 20
0.75±0.05
9PS8760 02/01/05
PI3USB14
Low Voltage, High Bandwidth, USB 2.0,
4:1 Mux/DeMux with Single Enable
Ordering Information
Ordering Code Packaging Type Package Description
PI3USB14Q Q 150-mil, 16-pin QSOP
PI3USB14QE Q Pb-free & Green, 150-mil, 16-pin QSOP
PI3USB14L L 173-mil, 16-pin TSSOP
PI3USB14LE L Pb-free & Green, 173-mil, 16-pin TSSOP
PI3USB14ZHE E PI-free & Green, 20-Contact TQFN
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com