Logic Block Diagram
A
0
B
0
A
5
B
5
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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C32X384/PI5C32X384C
20-Bit, 2-Port BusSwitch
PI5C32X384/32X384C
20-Bit, 2-Port BusSwitch
Product Features
鈥?Near-zero propagation delay
鈥?5鈩?switches connect inputs to outputs
鈥?Direct bus connection when switches are ON
鈥?Ultra-low quiescent power 32X384 (0.2 碌A(chǔ) typical)
鈥?Ideally suited for notebook applications
鈥?Packages available:
鈥?48-pin 150-mil wide plastic BQSOP (B)
鈥?48-pin 240-mil wide plastic TSSOP (A)
Product Description
Pericom Semiconductor鈥檚 PI5C series of BusSwitch circuits are
produced using the Company鈥檚 advanced submicron CMOS
technology, achieving industry leading performance.
The PI5C32X384 and PI5C32X384C are 20-bit bus switches
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.
Product Pin Configuration
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
48-Pin
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
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
A
4
A
15
B
4
B
15
A
9
A
10
B
9
B
10
A
19
B
19
A
14
B
14
BE
A
BE
B
BE
C
BE
D
Truth Table
Function
Disconnect
Connect
Connect
Connect
Function
Disconnect
Connect
Connect
Connect
(1)
BE
A
H
L
H
L
BE
C
H
L
H
L
BE
B
H
H
L
L
BE
D
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
B
19-B15
Hi-Z
Hi-Z
A19-A15
A19-A15
B
14-B10
Hi-Z
Hi-Z
A14-A10
A14-A10
Product Pin Description
Pin Name
BEx
A
19-A0
B
19-B0
GND
V
CC
Description
Bus Enable Inputs (Active LOW)
Bus A
Bus B
Ground
Power
Note:
1.H
= High Voltage Level
L
= Low Voltage Level
Hi-Z = High Impedance
1
PS7027D
05/10/99
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2
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