PI3B16862/PI3B162862
3.3V, Hot Insertion, 20-Bit, 2- Port BusSwitch
PI3B16862
PI3B162862 (25Ω)
3.3V, Hot Insertion, 20-Bit, 2-Port BusSwitch
Product Features
Product Description
Pericom Semiconductor’s PI3B series of Bus Switch circuits are
produced using the Company’s advanced 0.35 micron CMOS
technology, achieving industry leading speed.
• Near-zero propagation delay
• 5Ω or 25Ω switches connect inputs to outputs
• Fast Switching Speed - 5ns (max.)
• Direct bus connection when switches are ON
• Permits Hot Insertion
The PI3B16862 is configured as a 3.3 Volt, 20-bit, hot-insertion
2-port bus switch designed with a low ON resistance (5Ω)
allowing inputs to be connected directly to outputs. The bus
switch creates no additional propagational delay or additional
ground bounce noise. The switch is turned ON by the Bus Enable
(BEx) input signal.
• 32X384 function with flow through pinout make board
layout easier
• Vcc Operating Range: 3.0V to 3.6V
• Industrial operating temperature: –40°C to +85°C
The PI3B162862 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
• Packages available:
– 48-pin 150-mil wide plastic BQSOP (B)
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Product Pin Configuration
Logic Block Diagram
BE
A
A
A
A
A
A
A
A
A
A
2
0
1
2
3
4
5
6
7
8
9
1
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
BE
A
0
B
B
0
4
2
1
3
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
4
5
A
4
1
6
7
8
BE
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
BE
A
15
19
B
B
15
19
4
VCC
BE
A
A
A
A
A
A
A
A
A
A
10
11
12
13
14
15
16
17
18
19
3
B
B
B
B
B
B
B
B
B
B
10
A
11
12
13
14
15
16
17
18
19
BE4
Truth Table(1)
Function
GND
BEX A19-A0
Disconnect
Connect
H
L
Hi-Z
Product Pin Description
B19-B0
Pin Name
Description
Note:
BEx
Bus Enable Inputs (Active LOW)
1. H = HighVoltageLevel
= LowVoltageLevel
Hi-Z = High Impedance
A19-A0
B19-B0
Bus A
Bus B
L
PS8200C 09/08/99
1