21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3B3245
3.3V, Hot Insertion
8-Bit, 2-Port, BusSwitch
Product Features
聲 Near zero propagation delay
聲 5 Ohm switches connect inputs to outputs
聲 Fast Switching Speed - 4.5ns max.
聲 Permits Hot Insertion
聲 Ultra Low Quiescent Power (0.2碌A(chǔ) Typical)
聳 Ideally suited for notebook applications
聲 TTL-compatible control of inputs levels
聲 Packages available:
聳 20-pin 150 mil wide plastic QSOP (Q)
聳 20-pin 173 mil wide plastic TSSOP (L)
Product Description
Pericom Semiconductor聮s PI3B series of logic circuits are produced
using the Company聮s advanced sub micron CMOS technology,
achieving industry leading performance.
The 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.
Logic Block Diagram
Product Pin Configuration
A
0
B
0
NC
A
0
A
1
A
2
1
2
3
4
20
19
18
17
V
CC
BE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
A
7
B
7
A
3
A
4
A
5
A
6
A
7
GND
5
20-Pin
16
Q,L
6
15
7
8
9
10
14
13
12
11
BE
Truth Table
(1)
Function
Disconnect
Connect
BE
H
L
A
0鈥?
Hi-Z
B
0鈥?
Product Pin Description
Pin Name
BE
A0聳7
B0聳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
PS8162D
01/05/00
1
2
3
