PI3C32X384 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 2.5V/3.3V, High Bandwidth, Hot Insertion 20-Bit, 2-Port, Bus Switch

PI3C32X384
2.5V/3.3V, High Bandwidth, Hot Insertion
20-Bit, 2-Port, Bus Switch
Features
ÎÎNear-Zero propagation delay
ÎÎ5-ohm switches connect inputs to outputs (PI3C32X384)
ÎÎHigh Bandwidth Operation (>400 MHz)
ÎÎPermits Hot Insertion
ÎÎ5V I/O Tolerant
ÎÎ2.5V Supply Voltage Operation
ÎÎPackaging (Pb-free & Green):
àà 48-pin 150-mil wide plastic BQSOP (B)
Description
Pericom Semiconductor’s PI3C32X384, is a 2.5V or 3.3Volt,
highbandwidth 20-bit, 2-port bus switches designed with a low
Onresistance allowing inputs to be connected directly to out-
puts. 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.
Applications
ÎÎHigh Bandwidth Data switching
ÎÎHot Docking
Block Diagram
A0
B0
A5
A4
A15
B4
A9
B15
A10
A19
BEA
BEB
BEC
BED
B19
A14
Truth Table⁽¹⁾
Function BEA BEB
B0-B4
Disconnect
H
H
Hi-Z
Connect
L
H
A4-A0
Connect
H
L
Hi-Z
Connect
L
L
A4-A0
Function BEC BED
B9-B5
Disconnect
H
H
Hi-Z
Connect
L
H
A9-A5
Connect
H
L
Hi-Z
Connect
L
L
A9-A5
Note:
1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Hi-Z = High Impedance
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Pin Configuration
B5
B9
B10
B14
B5-B9
Hi-Z
Hi-Z
A19-A15
A19-A15
B14-B10
Hi-Z
Hi-Z
A14-A10
A14-A10
BEA 1
B0 2
A0 3
A1 4
B1 5
B2 6
A2 7
A3 8
B3 9
B4 10
A4 11
GND 12
BEC 13
B5 14
A5 15
A6 16
B6 17
B7 18
A7 19
A8 20
B8 21
B9 22
A9 23
GND 24
48 VCC
47 B19
46 A19
45 A18
44 B18
43 B17
42 A17
41 A16
40 B16
39 B15
38 A15
37 BEB
36 VCC
35 B14
34 A14
33 A13
32 B13
31 B12
30 A12
29 A11
28 B11
27 B10
26 A10
25 BED
Pin Description
Pin Name Description
BEX
A19 - A0
B19 - B0
GND
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
VCC
Power
11-0008
1
www.pericom.com
PS8430D
09/30/10