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PI3B3245
3.3V, Hot Insertion
8-Bit, 2-Port,
NanoSwitch™
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Fast Switching Speed - 4.5ns max.
• Ultra Low Quiescent Power (0.2µA Typical)
– Ideally suited for notebook applications
• TTL-compatible control of inputs levels
• Packaging (Pb-free & Green available):
– 20-pin QSOP (Q)
– 20-pin TSSOP (L)
– 20-pin SOIC (S)
Description
Pericom Semiconductor’s PI3B3245 is a 3.3V 8-bit, 2-port bus switch
designed with a low On-Resistance (5-ohm) 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.
Block Diagram
Pin Configuration
A
0
SW
B
0
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
BE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
A
7
SW
B
7
SW
BE
A
B
BE
Truth Table
(1)
Function
Disconnect
Connect
BE
H
L
A
0–7
Hi-Z
B
0–7
Pin Description
Pin Name
BE
A0–7
B0–7
GND
V
CC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
Notes:
H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1
PS8162F
09/23/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
