PI5C3383
5-Bit, 4-Port Bus Exchange Switch
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2µA typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green available):
– 24-pin 173-mil wide plastic TSSOP (L)
– 24-pin 150-mil wide plastic QSOP (Q)
– 24-pin 300-mil wide plastic SOIC (S)
Description
The PI5C3383 is a 5-bit, 4-port bus switch with exchange
designed with a low On-Resistance allowing inputs to be
connected directly to outputs. The switch creates no additional
propagational delay or additional ground bounce noise. The
switch is turned ON by the Bus Enable (BE) input signal, and the
Bus Exchange (BX) input signal offers nibble swapping of the
AB and CD pairs of signals. This exchange configuration allows
byte swapping of buses in systems. It can also be used as a quad
2-to-1 multiplexer and to create low delay barrel shifters, etc.
Block Diagram
A0
C0
Pin Configuration
BE
C
0
A
0
B
0
D
0
C
1
A
1
B
1
D
1
C
2
A
2
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
B0
D0
A4
C4
Vcc
D
4
B
4
A
4
C
4
D
3
B
3
A
3
C
3
D
2
B
2
BX
B4
D4
BX
BE
Pin Description
Pin Name
BE
B
X
A
X
BE
H
L
L
BX
X
L
H
A0-A4
Hi-Z
C0-C4
D0-D4
B0-B4
Hi-Z
D0-D4
C0-C4
B
X
C
X
D
X
GND
V
CC
Description
Bus Enable Input (Active LOW)
Bus Exchange Input
Bus A
Bus B
Bus C
Bus D
Ground
Power
Truth Table
(1)
Function
Disconnect
Connect
Exchange
Note:
1. H =High Voltage Level, X = Don’t Care
L = Low Voltage Level, Hi-Z = High Impedance
1
PS7028G
12/10/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
