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PI3C3245
2.5V/3.3V, High Bandwidth, Hot Insertion
8-Bit, 2-Port, Bus Switch
Product Features
Near zero propagation delay
5Ω switches connect inputs to outputs
High Bandwidth Operation (>400 MHz)
Permits Hot Insertion
5V I/O Tolerant
Rail-to-Rail 3.3V or 2.5V Switching
2.5V Supply Voltage Operation
Packages available:
20-pin 150 mil wide plastic QSOP (Q)
20-pin 173 mil wide plastic TSSOP (L)
Product Description
Pericom Semiconductors PI3C series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.
The PI3C3245 is a 2.5V or 3.3V 8-bit, 2-port bus switch designed
with a low ON resistance (5Ω) 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. It is very useful in switching
signals that have high bandwidth (>400 MHz).
Logic Block Diagram
Product Pin Configuration
NC
A0
A1
A2
A3
A4
A5
A6
1
2
3
4
6
7
8
9
10
L,Q
)
*
20
19
18
17
15
14
13
12
11
V
CC
BE
B0
B1
B2
B3
B4
B5
B6
B7
)%
*%
5
20-Pin
16
*-
A7
GND
Truth Table
(1)
Function
Disconnect
Connect
BE
H
L
A07
Hi-Z
B07
Product Pin Description
Pin Name
BE
A07
B07
GND
V
CC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
Note:
1. H
= High Voltage Level
L
= Low Voltage Level
Hi-Z = High Impedance
1
PS8162B
12/10/99