PI5C3390 Datasheet, PDF (1/4 Pages) Pericom Semiconductor Corporation – 16-to-8 Multiplexer/Demultiplexer Bus Switch

PI5C3390
PI5C32390 (25-ohm)
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16-to-8 Multiplexer/Demultiplexer
Bus Switch
Features:
• Near-Zero propagation delay
• Low noise, 25-ohm version (PI5C32390)
• 5-ohm switches connect inputs to outputs (PI5C3390)
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2µA typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green available):
– 28-pin 150-mil wide plastic QSOP (Q)
Description:
Pericom Semiconductor’s 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 25-ohm resistor reducing noise reflection
in high-speed applications.
Block Diagram
A0
C0
A7
C7
AEN
B0
B7
BEN
Truth Table⁽¹⁾
AEN BEN A Sw B Sw
H
H
Off Off
L
H
On Off
H
L
Off On
L
L
On On
Note:
1. H = High Voltage Level
L = Low Voltage Level
Function
Disconnect
A to C
B to C
A, B to C
Pin Configuration
A0 1
B0 2
C0 3
A1 4
B1 5
C1 6
A2 7
B2 8
C2 9
A3 10
B3 11
C3 12
AEN 13
GND 14
28 VCC
27 A7
26 B7
25 C7
24 A6
23 B6
22 C6
21 A5
20 B5
19 C5
18 A4
17 B4
16 C4
15 BEN
Pin Description
Pin Name I/O
AEN, BEN
I
A0-A7
I/O
B0-B7
I/O
C0-C7
I/O
Description
Bus Output Enable (Active LOW)
Bus A
Bus B
Bus C
1
PS7030E 09/15/04