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18-Bit Bus Exchange Switch
Product Features
聲 Near-zero propagation delay
聲 5W switches connect inputs to outputs
聲 Direct bus connection when switches are ON
聲 Ultra-low quiescent power (0.2碌A(chǔ) typical)
聳 Ideally suited for notebook applications
聲 Industrial operating temperature: 聳40擄C to +85擄C
聲 Available Packages:
聳 48-pin 240-mil wide thin plastic TSSOP (A)
聳 48-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor聮s PI5C series of logic circuits are produced
using the Company聮s advanced 0.8 micron CMOS technology.
The PI5C16209 and PI5C162209 are 18-bit bus exchange switches
designed with a low ON resistance (5鈩? allowing inputs to be
connected directly to outputs. This device operates as a 18-bit bus
switch or a 9-bit exchanger, which provides data exchanging
between the four signal ports via the data select pins (S0-S2).
The PI5C162209 device has a built-in 25-ohm series resistor to
reduce noise because of reflections, thus eliminating the need for
an external terminating resistor.
Logic Block Diagram
ONE OF NINE CHANNELS
1
A
1
1
B
1
Product Pin Configuration
S
0
1
A
1
1
A
2
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
S
1
S
2
1
B
1
1
B
2
2
B
1
2
B
2
GND
2
A
1
2
A
2
1
A
2
1
B
2
VCC
3
A
1
3
A
2
GND
3
B
1
3
B
2
FLOW CONTROL
S
0
S
1
S
2
GND
4
A
1
4
A
2
5
A
1
5
A
2
GND
6
A
1
GND
4
B
1
4
B
2
5
B
1
5
B
2
GND
6
B
1
6
B
2
7
B
1
7
B
2
Truth Table
Function
Disconnect
A1 to B1
A1 to B2
A2 to B1
A2 to B2
Disconnect
A1 to B1, A2 to B2
A1 to B2, A2 to B1
Note:
S2
L
L
L
L
H
H
H
H
S1
L
L
H
H
L
L
H
H
S0
L
H
L
H
L
H
L
H
A1
Z
B1
B2
Z
Z
Z
B1
B2
A2
Z
Z
Z
B1
B2
Z
B2
B1
6
A
2
7
A
1
7
A
2
GND
8
A
1
8
A
2
9
A
1
9
A
2
GND
8
B
1
8
B
2
9
B
1
9
B
2
Product Pin Description
Pin Name
S0-S2
xAx
xB
x
1
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
I/O
I
I/O
I/O
Description
Select Inputs
Bus A
Bus B
PS7022A 03/13/96
1
2
3
