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PI3B32X384B Datasheet

  • PI3B32X384B

  • PI3B32X384 is a 3.3V 20-bit bus switch designed with a low O...

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  • PERICOM   PERICOM

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Block Diagram
A
0
SW
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PI3B32X384
3.3V, 20-Bit, 2-Port
NanoSwitch鈩?/div>
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Near-Zero propagation delay
5-ohm switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power 32X384 (0.1碌A(chǔ) typical)
鈥?Ideally suited for notebook applications
鈥?Fast Switching Speed - 4.5ns max.
鈥?TTL - compatible control of input levels
鈥?Packaging (pb-free & Green available):
鈥?48-pin 150-mil wide plastic BQSOP (B)
Description
Pericom Semiconductor鈥檚 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.
Pin Configuration
B
0
A
5
SW
B
5
A
4
A
15
SW
B
4
B
15
A
9
A
10
SW
B
9
B
10
SW
SW
SW
A
B
A
19
SW
B
19
A
14
SW
B
14
OE
BE
A
BE
B
BE
C
BE
D
Truth Table
(1)
Function
Disconnect
Connect
Connect
Connect
Function
Disconnect
Connect
Connect
Connect
BEA
H
L
H
L
BEC
H
L
H
L
BEB
H
H
L
L
BED
H
H
L
L
B 4 鈥揃 0
Hi- Z
A4- A0
Hi- Z
A4- A0
B 9 鈥揃 5
Hi- Z
A9- A5
Hi- Z
A9- A5
B19-B15
Hi- Z
Hi- Z
A19- A15
A19- A15
B14-B10
Hi- Z
Hi- Z
A14- A10
A14- A10
BE
A
B
0
A
0
A
1
B
1
B
2
A
2
A
3
B
3
B
4
A
4
GND
BE
C
B
5
A
5
A
6
B
6
B
7
A
7
A
8
B
8
B
9
A
9
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
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
48-Pin
B
VCC
B
19
A
19
A
18
B
18
B
17
A
17
A
16
B
16
B
15
A
15
BE
B
VCC
B
14
A
14
A
13
B
13
B
12
A
12
A
11
B
11
B
10
A
10
BE
D
Pin Description
Pin Name
BEx
A19- A0
B19- B0
GND
Vcc
D e s cription
Bus Enable Inputs (Active LO W)
Bus A
Bus B
Ground
Power
Note:
1. H = High Voltage Level L = Low Voltage Level
Hi-Z = High Impedance
1
PS8336C
09/24/04

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