PI3V312
Low On-Resistance, 3.3V High-Bandwidth
4-Port, 2:1 Mux/DeMux VideoSwitch
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• High signal passing bandwidth (500MHz)
• Beyond Rail-to-Rail switching
• 5V I/O tolerant with 3.3V supply
• 2.5V and 3.3V supply voltage operation
• Hot insertion capable
• Industrial operating temperature: -40ºC to +85ºC
• 2KV ESD Protection (human body model)
• Latch-up performance >250mA per JESD17
• Packaging (Pb-free & Green available):
– 16-pin QSOP (Q)
– 16-pin TSSOP (L)
– 20-contact TQFN (ZH)
Description
Pericom Semiconductor’s PI3V312 is a 4-port, 2:1 Multiplexer/
Demultiplexer with 3-state outputs. The switch introduces no ad-
ditional ground bounce noise or propagation delay.
Low On-Resistance and High bandwidth make it ideal for video
and other applications. Also this device has exceptionally low
crosstalk and off-isolation, which is far greater than most analog
switches offered today. A single 3.3V supply is all that is required
for operation.
The PI3V312 offers a high-performance (500MHz), low-cost solu-
tion to switch between video signals that have high bandwidth.
Block Diagram
I
A
0
I
A
1
I
B
0
I
B
1
I
C
0
I
C
1
I
D
0 I
D
1
Pin Configuration
N.C.
1
V
CC
20
19
18
17
S
I
A
0
1
2
3
4
5
6
7
8
16-pin
L, Q
16
15
14
13
12
11
10
9
V
CC
EN
I
D
0
I
D
1
S
I
A
0
2
3
4
5
6
7
8
9
N.C.
EN
I
D
0
I
D
1
EN
I
A
1
Y
A
I
B
0
I
B
1
IA
1
Y
A
I
B
0
I
B
1
Y
D
I
C
0
I
C
1
20-Contact
16
ZH
15
14
13
12
Y
D
I
C
0
I
C
1
S
Y
B
GND
Y
C
Y
B
N.C.
10
11
Y
C
GND
N.C.
Y
A
Y
B
Y
C
Y
D
Truth Table
(1)
EN
H
L
L
S
X
L
H
Y
A
Hi-Z
IA0
IA1
Y
B
Hi-Z
IB0
IB1
Y
C
Hi-Z
IC0
IC1
Y
D
Hi-Z
ID0
ID1
Function
Disable
S=0
S=1
Pin Description
Pin Name
I
A
N
Description
Data Inputs
Select Inputs
Enable
Data Outputs
Ground
Power
to
I
D
N
S
EN
Y
A
to Y
D
GND
V
CC
1
Notes:
1. H=High Voltage Level
L=Low Voltage Level
PS8754A
11/02/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
