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Pericom Semiconductor Corporation

PI3B32X384 Datasheet Preview

PI3B32X384 Datasheet

20-Bit 2-Port NanoSwitch

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Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.1µA typical)
– Ideally suited for notebook applications
• Fast Switching Speed: 4.5ns max.
• TTL-compatible control of input levels
• Packaging (pb-free & Green available):
– 48-pin 150-mil wide plastic BQSOP (B)
PI3B32X384
3.3V, 20-Bit, 2-Port NanoSwitch
Description
Pericom Semiconductor’s PI3B32X384 is a 3.3V, 20-bit bus
switch designed with a low On-Resistance 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. Four bus enable
signals are provided, one for each of the upper and lower five bits
of the two 10-bit buses.
Block Diagram
Pin Conguration
A0
A4
A15
A19
BEA
BEB
BEC
BED
SW B0 A5
SW B4 A9
SW B15 A10
SW B19 A14
SW B5
SW
SW
SW
B9
B10 SW
A
B14
B
OE
Truth Table(1)
Function BEA
BEB B4-B0 B19-B15
BEA
B0
A0
A1
B1
B2
A2
A3
B3
B4
A4
GND
BEC
B5
A5
A6
B6
B7
A7
A8
B8
B9
A9
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48 VCC
47 B19
46 A19
45 A18
44 B18
43 B17
42 A17
41 A16
40 B16
39 B15
38 A15
37 BEB
36 VCC
35 B14
34 A14
33 A13
32 B13
31 B12
30 A12
29 A11
28 B11
27 B10
26 A10
25 BED
Disconnect
H
H Hi-Z Hi-Z
Connect
Connect
Connect
Function
Disconnect
Connect
Connect
Connect
L
H
L
BEC
H
L
H
L
H
L
L
BED
H
H
L
L
A4-A0
Hi-Z
A4-A0
B9-B5
Hi-Z
A9-A5
Hi-Z
A9-A5
Hi-Z
A19-A15
A19-A15
B14-B10
Hi-Z
Hi-Z
A14-A10
A14-A10
Pin Description
Pin Name
BEx
Description
Bus Enable Inputs (Active LOW)
A19-A0
Bus A
B19-B0
GND
Vcc
Bus B
Ground
Power
Note: 1. H = High Voltage Level L = Low Voltage level
Hi-Z = High Impedance
06-0312
1
PS8336F
12/04/06




Pericom Semiconductor Corporation

PI3B32X384 Datasheet Preview

PI3B32X384 Datasheet

20-Bit 2-Port NanoSwitch

No Preview Available !

PI3B32X384
3.3V, 20-Bit, 2-Port NanoSwitch
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........................................–0.5V to +4.6V
DC Input Voltage.....................................................................–0.5V to +4.6V
DC Output Current...............................................................................120mA
Power Dissipation ................................................................................... 0.5W
Note:
Stresses greater than those listed under MAXIMUM RAT-
INGS 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 ex-
tended periods may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Parameters
Description
Test Conditions(1)
Min.
Typ(2)
VIH Input HIGH Voltage
Guaranteed Logic HIGH Level
VIL Input LOW Voltage
Guaranteed Logic LOW Level
IIH Input HIGH Current
VCC = Max. VIN = VCC
IIL Input LOW Current
IOZH High-Impedance Output Current
VCC = Max. VIN = GND
0 A, B VCC
VIK Clamp Diode Voltage
VCC = Min. IIN = -18mA
2.0
-0.5
RON Switch ON Resistance(4)
VCC = Min. VIN = 0.0V
ION = 15mA
VCC = Min. VIN = 2.4V
ION = 15mA
—5
— 10
Max.
0.8
±1
±1
±1
-1.2
8
17
Units
V
V
µA
µA
µA
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 volt-
ages on the two (A,B) pins.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters
Description
CIN INput Capacitance
COFF A/B Capacitance, Switch Off
CON A/B Capacitance, Switch On
Test Conditions
VIN = 0V
VIN = 0V
VIN = 0V
Typ
Max.
3.0
8.0
16.0
Units
pF
pF
pF
Notes:
1. This parameter is determined by device characterization but is not production tested.
2. Typical values are at VCC = 3.3V, TA =25°C ambient and maximum loading.
3. Not more than one output should be sorted at one time. Duration of the test should not exceed one second.
4. 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 volt-
ages on the two (A,B) pins.
5. This parameter is determined by device characterization but is not production tested.
06-0312
2
PS8336F
12/04/06


Part Number PI3B32X384
Description 20-Bit 2-Port NanoSwitch
Maker Pericom Semiconductor Corporation
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