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PI5C3305LE

P1-P3P4-P6
1
PS8331I 12/02/09
Description
Pericom Semiconductor’s PI5C3305 is a 2-bit bus switch designed
with two individual 5Ω switches 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 PI5C3305 device has active HIGH enables.
PI5C3305
2-Bit Bus Switch with
Individual Enables
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.2μA typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green available):
– 8-pin 173-mil wide plastic TSSOP (L)
– 8-pin 118-mil wide plastic MSOP (U)
Block Diagram
Pin Confi guration
Pin Description
Pin Name Description
BE
n
Switch Enable
A
2
-A
1
Bus A
B
2
-B
1
Bus B
V
CC
Power
GND Ground
Truth Table
(1)
BE
n
A
n
B
n
V
CC
Function
X
(2)
Hi-Z Hi-Z GND Disconnect
L Hi-Z Hi-Z V
CC
Disconnect
HB
n
A
n
V
CC
Connect
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.
BE
1
A
1
B
1
BE
2
A
2
B
2
BE
1
A
1
B
1
GND
V
CC
BE
2
B
2
A
2
1
2
3
4
8
7
6
5
09-0007
2
PS8331I 12/02/09
PI5C3305
2-Bit Bus Switch with Individual Enables
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 +7.0V
DC Input Voltage ..................................................................–0.5V to +7.0V
DC Output Current .............................................................................120mA
Power Dissipation .................................................................................0.5W
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent dam age to the
device. This is a stress rating only and func tion al op er a tion
of the device at these or any other con di tions above those
indicated in the op er a tion al sec tions of this specifi cation is
not implied. Exposure to ab so lute maximum rating condi-
tions for extended periods may affect reliability.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
DC Electrical Characteristics (Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 4V to 5.5V)
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max. Units
V
IH
Input HIGH Voltage Guaranteed Logic HIGH Level 2.0
V
V
IL
Input LOW Voltage Guaranteed Logic LOW Level –0.5 0.8
I
IH
Input HIGH Current V
CC
= Max., V
IN
= V
CC
±1
μA
I
IL
Input LOW Current V
CC
= Max., V
IN
= GND ±1
I
OZ
High Impedance Output Current 0 ≤ A, B ≤ V
CC
±1
I
ON
Low Impedance Output Current 0 ≤ A, B ≤ V
CC
±1
V
H
Input Hysteresis at Control Pins 250 mV
R
ON
Switch On-Resistance
(3)
V
CC
= 4.5V, V
IN
= 0.0V,
I
ON
= 30mA or 64mA
47
Ω
V
CC
= 4.5V, V
IN
= 2.4V,
I
ON
= –15mA
815
Capacitance (T
A
= 25°C, f = 1 MHz)
Parameters
(1)
De scrip tion Test Conditions Typ.
(4)
Units
C
IN
Input Capacitance
V
IN
= 0V
3
pF C
OFF
A/B Capacitance, Switch Off 5
C
ON
A/B Capacitance, Switch On 10
Notes:
1. For Max. or Min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, T
A
= 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.
Notes:
1. This parameter is determined by device characterization but is not production tested.
09-0007
3
PS8331I 12/02/09
PI5C3305
2-Bit Bus Switch with Individual Enables
Switching Characteristics Over Operating Range
Parameters Description Test Conditions
(1)
V
CC
= 5V ± 10% V
CC
= 4V
Units
Min. Max. Min. Max.
t
PLH
t
PHL
Propagation Delay
(2, 3)
A to B, B to A
C
L
= 50pF
R
L
= 500Ω
0.25 0.25
ns
t
PZH
t
PZL
Bus Enable Time 1.0 4.9 5.5
t
PHZ
t
PLZ
Bus Disable Time 1.0 4.2 4.5
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.
Power Supply Characteristics
Parameters De scrip tion
Test Conditions
(1)
Min.
Typ.
(2)
Max. Units
I
CC
Quiescent Power Supply
Current
V
CC
= Max.
V
IN
= GND or V
CC
0.1 3.0 μA
I
CC
Supply Current per Input @
TTL HIGH
V
IN
= 3.4V
(3)
2.5 mA
Notes:
1. For Max. or Min. conditions, use appropriate value specifi ed under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V, control inputs only); A and B pins do not contribute to I
CC
.
09-0007
P1-P3P4-P6

PI5C3305LE

Mfr. #:
Buy PI5C3305LE
Manufacturer:
Diodes Incorporated
Description:
Digital Bus Switch ICs 2Bit Bus Switch 2-Port
Lifecycle:
New from this manufacturer.
Delivery:
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