PI3C32X384BE View Datasheet(PDF) - Pericom Semiconductor
Part Name
Description
MFG CO.
PI3C32X384BE
Pericom Semiconductor
'PI3C32X384BE' PDF : 5 Pages View PDF
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2.5V/3.3V, High Bandwidth, Hot Insertion
20-Bit, 2-Port, Bus Switch
Features
• Near-zero propagation delay
• 5-ohm switches connect inputs to outputs (PI3C32X384)
• High Bandwidth (>400 MHz)
• Permits Hot Insertion.
• 5V I/O Tolerant
• 2.5V Supply Voltage Operation
• Packaging (Pb-free & Green available):
– 48-pin 150-mil wide plastic BQSOP (B)
Description
Pericom Semiconductor’s PI3C32X384, is a 2.5V or 3.3Volt, high-
bandwidth 20-bit, 2-port 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.
Applications
• High Bandwidth Data switching
• Hot Docking
Block Diagram
A0
B0
A5
A4
B4
A9
A15
B15
A10
A19
B19
A14
BEA
BEB
BEC
BED
Truth Table(1)
Function
Disconnect
Connect
Connect
Connect
Function
Disconnect
Connect
Connect
Connect
BEA
H
L
H
L
BEC
H
L
H
L
BEB
H
H
L
L
BED
H
H
L
L
B0-B4
Hi-Z
A4-A0
Hi-Z
A4-A0
B9-B5
Hi-Z
A9-A5
Hi-Z
A9-A5
Note:
1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Hi-Z = High Impedance
B5-B9
Hi-Z
Hi-Z
A19-A15
A19-A15
B14-B10
Hi-Z
Hi-Z
A14-A10
A14-A10
Pin Configuration
BEA 1
48 VCC
B0 2
47 B19
B5
A0 3
46 A19
A1 4
45 A18
B1 5
44 B18
B9
B2 6
43 B17
A2 7
42 A17
B10
A3 8
41 A16
B3 9 48-Pin 40 B16
B4 10 B 39 B15
A4 11
38 A15
B14
GND 12
37 BEB
BEC 13
36 VCC
B5 14
35 B14
A5 15
34 A14
A6 16
33 A13
B6 17
32 B13
B7 18
31 B12
A7 19
30 A12
A8 20
29 A11
B8 21
28 B11
B9 22
27 B10
A9 23
26 A10
GND 24
25 BED
Product Pin Description
Pin Name
Description
BEX
Bus Enable Inputs (Active LOW)
A19 - A0
Bus A
B19 - B0
Bus B
GND
Ground
VCC
Power
1
PS8430C
09/24/04
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