鈥?/div>
Near-zero propagation delay
5鈩?switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power (0.1碌A typical)
鈥?Ideally suited for notebook applications
鈥?Packages available:
鈥?24-pin 173-mil wide plastic TSSOP (L)
鈥?24-pin 150-mil wide plastic QSOP (Q)
Product Description
Pericom Semiconductor鈥檚 PI3B series of logic circuits are produced
using the Company鈥檚 advanced submicron CMOS technology,
achieving industry leading performance.
The PI3B3383 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 bus switch creates no additional propagational
delay or additional ground bounce noise. The switches are 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.
Logic Block Diagram
A
0
C
0
Product Pin Configuration
B
0
D
0
BE
C
0
A
0
B
0
D
0
C
1
A
1
B
1
D
1
C
2
A
2
GND
24
1
23
2
22
3
21
4
24-Pin
20
5
L, Q, S
19
6
18
7
17
8
16
9
15
10
14
11
13
12
A
4
C
4
B
4
D
4
Vcc
D
4
B
4
A
4
C
4
D
3
B
3
A
3
C
3
D
2
B
2
BX
Product Pin Description
BX
BE
Pin Name
BE
BX
Ax
Bx
Cx
Dx
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
X
L
Hi-Z
=
=
=
=
BE
H
L
L
BX
X
L
H
A
0-A4
Hi-Z
C
0-C4
D
0-D4
B
0-B4
Hi-Z
D
0-D4
C
0-C4
High Voltage Level
Don鈥檛 Care
Low Voltage Level
High Impedance
1
PS8580
10/18/01
PERICOM
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2
3
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