PI5C3390
PI5C32390 (25ohm)
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16-to-8 Multiplexer/Demultiplexer
BusSwitch
Product Features:
鈥?Near-zero propagation delay
鈥?Low noise, 25ohm version (PI5C32390)
鈥?5ohm switches connect inputs to outputs (PI5C3390)
鈥?Direct bus connection when switches are ON
鈥?Ultra-low quiescent power (0.2碌A typical)
鈥?Ideally suited for notebook applications
鈥?Packages available:
鈥?28-pin 150-mil wide plastic QSOP (Q)
鈥?28-pin 300-mil wide plastic SOIC (S)
Product Description:
Pericom Semiconductor鈥檚 PI5C series of logic circuits are produced
in the Company鈥檚 advanced submicron CMOS technology, achieving
industry leading performance.
The PI5C3390 and PI5C32390 are 16-to-8 multiplexer/
demultiplexer bus switches with a low ON resistance allowing
inputs to be connected directly to outputs. The two enable inputs
connect each of eight I/O to the common I/O pin. This multiplexer
function can be used to select and route logic signals to form
crossbar switches, isolate bus capacitance, or provide a zero delay
switch connection. The bus switch creates no additional ground
bounce noise or additional propagation delay. The PI5C32390 is
designed with an internal 25ohm resistor reducing noise reflection
in high-speed applications.
Logic Block Diagram
A
0
C
0
Product Pin Configuration
A
0
B
0
C
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-Pin
Q, S
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC
A
7
B
7
C
7
A
6
B
6
C
6
A
5
B
5
C
5
A
4
B
4
C
4
BEN
A
7
AEN
B
0
C
7
A
1
B
1
C
1
A
2
B
2
C
2
A
3
B
3
C
3
AEN
GND
B
7
BEN
Truth Table
(1)
AEN
H
L
H
L
BEN
H
H
L
L
A Sw
Off
On
Off
On
B Sw
Off
Off
On
On
Function
Disconnect
A to C
B to C
A, B to C
Product Pin Description
Pin Name
AEN, BEN
A
0
-
A7
B
0
-B
7
C0-C7
I/O
I
I/O
I/O
I/O
Description
Bus Output Enable (Active LOW)
Bus A
Bus B
Bus C
Note:
1. H = High Voltage Level
L = Low Voltage Level
1
PS7030A 11/25/96
1
2
3
