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PI3B16210
PI3B162210 (25 Ohms)
3.3V, Hot Insertion 20-Bit, 2-Port BusSwitch
Product Description
Product Features
聲
聲
聲
聲
聲
聲
聲
聲
Near-zero propagation delay
5-ohm or
25-ohm
switches connect inputs to outputs
Fast Switching Speed: 4.5ns max.
32x384 function with flow-through pinout make board
layout easier
Permits Hot Insertion.
V
CC
Operating Range: 3.0V to 3.6V
Industrial operating temperature: 聳40擄C to +85擄C
Packages available:
聳 48-pin 150-mil wide plastic BQSOP (B)
聳 48-pin 240-mil wide plastic TSSOP (A)
聳 48-pin 300-mil wide plastic SSOP (V)
Pericom Semiconductor聮s PI3B series of BusSwitch circuits are
produced using the Company聮s advanced submicron CMOS
technology, achieving industry leading speed.
The PI3B16210 is configured as a 3.3 volt 20-bit, 2-port bus switch
designed with a low ON resistance (5 ohms) allowing inputs to be
connected directly to outputs. The bus switch creates no additional
propagational delay or additional ground bounce noise. Switches
are turned ON by the Bus Enable (xOE) input signal.
The PI3B162210 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
Logic Block Diagram
1A1
1B1
Product Pin Configuration
NC
1A
1
1A
2
1A
3
1A
4
1A
5
1A
6
GND
1A
7
1A
8
1A
9
1A
10
2A
1
2A
2
V
CC
2A
3
GND
2A
4
2A
5
2A
6
2A
7
2A
8
2A
9
2A
10
1
2
3
4
5
6
7
8
9
10
11
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
1OE
2OE
1B
1
1B
2
1B
3
1B
4
1B
5
GND
1B
6
1B
7
1B
8
1B
9
1B
10
2B
1
2B
2
2B
3
GND
2B
4
2B
5
2B
6
2B
7
2B
8
2B
9
2B
10
1A10
1B10
1OE
2A1
2B1
48-Pin
A, B,
V
12
2A10
2B10
2OE
Truth Table
(1)
Inputs
1OE
L
L
H
H
2OE
L
H
L
H
Inputs /Outputs
1A,1B
1A = 1B
1A = 1B
Z
Z
2A,2B
2A = 2B
Z
2A = 2B
Z
Product Pin Description
Pin Name
1O E, 2O E
1A1- 1A10, 2A1- 2A10
1B1 - 1B10, 2B1 - 2B10
1
D e s cription
Bus Enable Inputs (Active LO W)
Bus A
Bus B
PS8193B
08/20/01
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1
2
3
4
