PI3B3384
PI3B32384 (25Ω)
3.3V, 10-Bit, 2-Port, NanoSwitch™
Description
Features
• Near-Zero propagation delay
PericomSemiconductor’sPI3B3384andPI3B32384are3.3Volt,10-
bit,2-portbusswitchesdesignedwithalowOn-Resistance allowing
inputs to be connected directly to outputs. The bus switch creates
no additional propagational delay or additional ground bounce
noise. Switches are turned ON by the Bus Enable (BE) input signal.
Two bus enable signals are provided, one for each of the upper and
lower five bits of the two 10-bit buses. The PI3B32384 is designed
with an internal 25-ohm resistor reducing noise reflection in high-
speed applications.
• Lownoise,25-ohmversion(PI3B32384)
• 5-ohm switches connect inputs to outputs (PI3B3384)
•
•
FastSwitchingSpeed-4.5nsmax.
Ultra-lowquiescentpower(0.1µAtypical)
– Ideally suited for notebook applications
• Packaging(Pb-free&Greenavailable):
–24-pin150-milwideplasticQSOP(Q)
–24-pin173-milwideplasticTSSOP(L)
PinConfiguration
BlockDiagram
1
24
23
22
21
20
19
18
17
16
15
14
13
BEA
B0
Vcc
B9
A9
A8
B8
B7
A7
A6
B6
B5
A5
BEB
A
0
B
0
4
2
3
A0
4
A1
A4
B
5
B1
24-Pin
Q, L
6
B2
7
A2
8
A3
9
B3
A
5
9
B
5
9
10
11
12
B4
A4
GND
A
B
A
B
BEA
BEB
BE
Truth Table(1)
Function
PinDescription
BEA BEB
B0-B4
Hi-Z
A0-A4
Hi-Z
B5-B9
Hi-Z
Hi-Z
A5-A9
A5-A9
PinName
BEA,BEB
A0-A9
B0-A9
GND
Description
Bus Enable Inputs (Active LOW)
Bus A
Bus B
Ground
Power
Disconnect
Connect
Connect
H
L
H
L
H
H
L
L
Connect
A0-A4
Notes:
V
CC
1. H = High Voltage Level
X = Don’t Care
L = Low Voltage Level
Hi-Z=High Impedance
PS8161F
09/23/04
1
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
