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Datasheet: PI2BV3868 (Pericom Semiconductor Corporation)

3.3V, 10-Bit 2:1 Mux/demux Switch W/25 Ohm Resistor

 

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Pericom Semiconductor Corporation
1
PS8612A 09/16/02
Logic Block Diagram
Pin Configuration
Pin Description
Truth Table
Notes:
H = High Voltage Level; L = Low Voltage Level
X
= 0 through 9;
Y
= 1 or 2
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Product Description
Pericom Semiconductor's PI2B series of logic circuits are produced
using the Company's advanced submicron CMOS technology,
achieving industry leading performance.
The PI2BV3868 is a 20:10, 3.3V Mux/Demux bus switch designed
with a low ON-resistance allowing inputs to be connected directly
to outputs. The bus switch creates no additional propagation delay
or additional ground bounce noise. The switches are turned ON by
two Low Enable Select (SEL) signals.
The PI2BV3868 switch can be used for High-Performance Memory
Module Applications, where the seperate SELECTS allow for
transferring clock, address, or data to two destinations.
Product Features
Near-zero propagation delay
20-ohm switches connect inputs to outputs
Fast Switching Speed : 2.5ns
Low Off Capacitance : 3pF
Pull-down on B output
Packages available:
48-pin 150 Mil (3.9mm) Wide BQSOP (B)
48-pin 240 Mil (6.1mm) Wide TSSOP (A)
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PI2BV3868
3.3V, 20:10 DDR Mux/Demux
Bus Switch w/Dual Enables
1B9
A9
A0
2B9
2B0
SEL1
SEL2
1B0
1B0
1
2B0
1B2
2B2
A3
A5
GND
1B6
2
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
3
GND
4
A1
5
6
7
8
9
10
GND
11
1B4
12
2B4
13
14
15
16
17
2B6
18
V
CC
19
A7
A9
20
GND
21
1B8
22
2B8
23
SEL2
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
SEL1
2B9
28
A8
2B7
1B7
1B9
GND
A6
1B3
1B5
2B5
2B3
A2
A4
GND
GND
2B1
V
CC
GND
1B1
A0
27
26
25
48-Pin
A, B
2
PS8612A 09/16/02
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PI2BV3868
3.3V, 20:10 DDR Mux/Demux
Bus Switch with Dual Enables
DC Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 3.3V10%)
Storage Temperature ................................................. 65C to +150C
Ambient Temperature with Power Applied ................ 40C to +85C
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
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 con-
ditions for extended periods may affect reliability.
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, T
A
= 25C 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.
4. This parameter is determined by device characterization but is not production tested.
5. Pull-down resistance is measured with the switch OFF and calculated by V
BIAS(B-Port)
/ I
OZH
.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Capacitance
(T
A
= 25C, f = 1 MHz)
Power Supply Characteristics
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25C ambient.
3. Per LVTTL driven input (control input only); A and B pins do not contribute to I
CC
.
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PS8612A 09/16/02
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PI2BV3868
3.3V, 20:10 DDR Mux/Demux
Bus Switch with Dual Enables
Switching Characteristics over Operating Range
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1
Parameter Measurements
Voltage Waveforms
Propagation Delay Times
Voltage Waveforms
Enable and Disable Times
t
s
e
T
1
S
t
D
P
n
e
p
O
t
Z
L
P
t/
L
Z
P
V
x
2
C
C
t
Z
H
P
t/
H
Z
P
D
N
G
Notes:
1. C
L
includes probe and jig capacitance.
2. 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.
3. All input pulses are supplied by generators having the following characteristics: PRR<10MHz, Z
O
= 50 ohms, t
R
2ns, t
F
2ns.
4. The outputs are measured one at a time with one transition per measurement.
5. t
PLZ
and t
PHZ
are the same as t
DIS
.
6. t
PZL
and t
PZH
are the same as t
EN
.
7. t
PLH
and t
PHL
are the same as t
PD
.
8. Guaranteed by design, but not production tested.
Input
t
PLH
t
PHL
V
CC
V
CC
/2
V
CC
/2
V
CC
/2
V
CC
/2
0V
Output
V
OH
V
OL
t
PZL
Output
Control
(Low Level
Enabling)
0V
V
CC
/2
V
CC
/2
V
CC
/2
V
CC
/2
t
PLZ
t
PHZ
V
OL
V
OH
0V
t
PZH
+0.15V
-0.15V
Output
Waveform 1
S1 at 2xV
CC
(see Note 2)
Output
Waveform 2
S1 at GND
(see Note 2)
V
OH
V
OH
V
OL
V
CC
Load Circuit
500
500
GND
2xV
CC
Open
S1
From Output
Under Test
C
L
= 4pF
(See note 1)
4
PS8612A 09/16/02
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PI2BV3868
3.3V, 20:10 DDR Mux/Demux
Bus Switch with Dual Enables
t
r
a
P
e
g
a
k
c
a
P
-
n
i
P
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A
8
6
8
3
V
B
2
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)
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(
P
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S
T
-
8
4
C
5
8
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C
0
4
B
8
6
8
3
V
B
2
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0
4
Ordering Information
Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
Packaging Mechanical B-48: 48-pin BQSOP
.014
.0157 BSC
0.40
0.356
.008 0.20
.002
.009
5
0.05
0.25
.079
2.0
.010 0.25
Gauge Plane
.150
.157
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
3.80
4.00
.228
.244
5.80
6.20
.020
.029
0.50
0.75
.063
1.60
.015 0.381
.386
.394
9.80
10.00
.0051
.009
0.13
0.23
1
48
x 45
BSC
Nom
Max
Nom
REF
.236
.244
.488
.496
.002
.006
SEATING PLANE
.007
.010
.0197
BSC
.004
.008
.319
1
48
12.4
12.6
6.0
6.2
0.50
0.17
0.27
8.1
0.05
0.15
0.09
0.20
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
.018
.030
0.45
0.75
.047
1.20 Max
BSC
Packaging Mechanical A-48: 48-pin TSSOP
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