PI3B16209

PI3B16209
3.3V, 18-Bit Bus Exchange NanoSwitchTM
Product Features
Description
•
•
•
•
•
The PI3B16209 is a 3.3 volt, 18-bit bus exchange switch
designed with a low On-resistance (5-ohm) allowing inputs to
be connected directly to outputs. The device operates as either
an 18-bit bus switch or as a 9-bit exchanger, providing data
exchange between four signal ports via the data select pins (S0S2).
Near-zero propogation delay
5-ohm switches connect inputs to outputs
Fast switching speed: 5ns (max.)
Operating Range: 3.0V to 3.6V
Packaging (Pb-free & Green Available):
– 48-pin, 240-mil wide thin plastic TSSOP (A)
Pin Configuration
Logic Block Diagram
S0
1A1
1A2
GND
ONE OF NINE CHANNELS
SW
1A1
1B1
SW
2A1
2A2
VCC
3A1
3A2
GND
4A1
4A2
5A1
5A2
GND
6A1
6A2
7A1
7A2
GND
8A1
8A2
9A1
9A2
SW
SW
1A2
1B2
FLOW CONTROL
SW
S0
S1
S2
A
B
Sx
Truth Table(1)
Function
Disconnect
A1 to B1
A1 to B2
A2 to B1
A2 to B2
Disconnect
A1 to B1, A2 to B2
A1 to B2, A2 to B1
06-0221
S2
L
L
L
L
H
H
H
H
S1
L
L
H
H
L
L
H
H
S0
L
H
L
H
L
H
L
H
A1
Z
B1
B2
Z
Z
Z
B1
B2
A2
Z
Z
Z
B1
B2
Z
B2
B1
Pin Description
Pin Name
S0-S2
xAx
xBx
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
I/O
I
I/O
I/O
S1
S2
1B1
1B2
2B1
2B2
GND
3B1
3B2
GND
4B1
4B2
5B1
5B2
GND
6B1
6B2
7B1
7B2
GND
8B1
8B2
9B1
9B2
Description
Select Inputs
Bus A
Bus B
PS8192J
02/13/07
PI3B16209
3.3v, 18-Bit Bus Exchange NanoSwitchTM
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ....................................................... –65°C to +150°C Note:
Stresses greater than those limited under MAXIMUM RATAmbient Temperature with Power Applied ........................ –0°C to +85°C INGS may cause permanent damage to the device. This is a
Supply Voltage Range ........................................................ –0.5V to +4.6V stress rating only and functional operation of the device at
DC Input Voltage ............................................................... –0.5V to +4.6V these or any other conditions above those indicated inthe opDC Output Current......................................................................... 120mA erational sections of this specification is not implied. Exposure
Power Dissipation .............................................................................. 1.0W to absolute maximum rating conditions for extended periods
may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = –40˚C to +85˚C, VCC = 3.0V to 3.6V.)
Parameters
VIH
VIL
Description
Input HIGH Voltage
Input LOW Voltage
IIH
IIL
IOZ
VIK
RON
Input High Current
Input Low Current
High Impedance Output Current
Clamp Diode Voltage
Switch ON Resistance(3)
Test Conditions(1)
Guarantee Logic HIGH Level
Guaranteed Logic LOW Level
Min.
2.0
–0.5
VCC = Max., VIN = VCC
VCC = Max., VIN = GND
0 ≤ A, B, ≤ VCC
VCC = Min., IIN = –18mA
VCC = Min., VIN = 0.0V ION = 48mA
VCC = Min., VIN = 2.4V ION = 15mA
Typ(2)
Max.
Units
V
0.8
–0.7
5
10
±1
±1
±1
–1.2
8
15
μA
V
Ω
Notes:
1. For Max. or Min. conditions, use appropriatr value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loafing.
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)
Descriptions
Parameters(1)
CIN
Input Capacitance
COFF
A/B Capacitance, Switch Off
CON
A/B Capacitance, Switch On
Test Conditions
VIN = 0V
Typ
3
14
30
Units
pF
Note:
1. This parameter is determined by device characterization but is not production tested.
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PI3B16209
3.3v, 18-Bit Bus Exchange NanoSwitchTM
Power Supply Characteristics
Parameters
ICC
∆ICC
ICCD
Description
Quiescent Power Supply Current
Conditions
VCC = Max.
Typ(2)
VIN = GND or VCC
Max.
10
VIN = 3.0V(3)
750
Supply Current per Input @ TTL
VCC = Max.
HIGH
Supply Current per Input per MZ(4) VCC = Max. A & B
Pins Open
Control Input
Toggling
50% Duty Cycle
Min.
Units
μA
0.25
mA/
MHz
Notes:
1. For Max. or Min. conditions, use appropriatr 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 contol inputs only and represents 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 Operating Range
Parameters
Description
Conditions
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(1,2)
Ax to Bx or Bx to Ax
Bus Enable Time
Sx to Ax or Bx
Bus Disable Time
Sx to Ax or Bx
CL = 50pF
.RL = 500-ohm
CL = 50pF
R
. L = 500-ohm
R = 500-ohm
Com.
Min. Max.
0.25
1
4.5
1
5
Units
ns
Notes:
1. This parameter is guaranteed but not tested on Propogation Delays.
2. This bus switch contributes no propogational delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time
constant for tjhe switch alone is of the order of 0.25ns for 50pF load. Since this time constnt is much smaller than the rise/fall times of typical driving signals, it adds very little propogational delay to the system. Propogatioonal delayy 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 tthe load on the driven side.
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, IN may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power
consumption.
Power-Supply Sequencing and Hot-Plug Information
Proper power-supply sequencing is recommended for all CMOS devicces. Always apply VCC and GND
before applying signals to input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
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PS8192J
02/13/07
PI3B16209
3.3v, 18-Bit Bus Exchange NanoSwitchTM
Package Mechanical: 48-Pin TSSOP (A) Package
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Note:
1. Controlling dimensions in millimeters.
2. Ref: JEDEC MO-153F/ED
3. Dimension does not include mold flash, protrusions or gate burrs. Mold flash, protrusions and gate burrs shall not exceed 0.15mm per side.
4. Dimension does not include interlead flash or protrusion. Interlead flash or protrusion
shall not exceed 0.25mm per side.
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Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
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Ordering Information
Ordering Code
Package Code
Package Description
PI3B16209A
A
48-pin 240-mil wide TSSOP
PI3B16209AE
A
Pb-free & Green, 48-pin 240-mil wide TSSOP
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. E = Pb-free and Green
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
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PS8192J
02/13/07