PI5C3401
6-Bit, 3-Port Bus Exchange Switch
Features:
Description:
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.2μA typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green available):
– 24-pin 150-mil wide plastic QSOP (Q)
– 24-pin 300-mil wide plastic SOIC (S)
Pericom Semiconductor’s PI5C3401 is a 6-bit, 3-port bus exchange
switch designed with a low On-Resistance (5-ohm) allowing inputs
to be connected directly to outputs. The bus switch creates no
additional propagation delay or additional ground bounce noise.
The switches are turned OFF by S0 = H and S1 = H. The A bus
can be connected to B bus by S0 = L and S1 = L. The B bus can
be connected to C bus by S0 = H and S1 = L. The C bus can be
connected to A bus by S0 = L and S1 = H.
Block Diagram
Pin Configuration
B0
A0
C0
B5
A5
C5
S0
S1
DECODER
Pin Description
Pin Name
Description
S0, S1
Truth Table
Bus Direction
A0–5
(1)
Bus A
Function
S0
S1
A0–5
B0–5
C0–5
B0–5
Bus B
Disconnect
H
H
Hi-Z
Hi-Z
Hi-Z
C0–5
Bus C
Connect A-B
L
L
B0–5
A0–5
Hi-Z
NC
Connect B-C
H
L
Hi-Z
C0–5
B0–5
GND
Ground
Connect C-A
L
H
C0–5
Hi-Z
A0–5
VCC
Power
No Connect
Note:
1. H = High Voltage Level, L = Low Voltage Level,
Hi-Z = High Impedance
07-0127
1
PS7020E
05/02/07
