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PI5C3306
2-Bit Bus Switch with
Active Low Enables
Product Features
鈥?Near zero propagation delay
鈥?5-Ohm switches connect inputs to outputs
鈥?Direct bus connection when switches are ON
鈥?Ultra Low Quiescent Power (0.2碌A Typical)
鈥?Ideally suited for notebook applications
鈥?Packages available:
鈥?8-pin 173 mil wide plastic TSSOP (L)
鈥?8-pin 118 mil wide plastic MSOP (U)
Product Description
Pericom Semiconductor鈥檚 PI5C series of logic circuits are produced
using the Company鈥檚 advanced submicron CMOS technology,
achieving industry leading speed grades.
The PI5C3306 is a 2-bit bus switch designed with two 5-ohm bus
switches with fast individual enables. When enabled via the
associated Bus Enable (BE) pin, the 鈥淎鈥?pin is directly connected to
the 鈥淏鈥?pin for that particular gate. The bus switch introduces no
additional propagation delay or additional ground bounce noise.
The PI5C3306 device has active LOW enables.
Logic Block Diagram
Product Pin Configuration
A1
BE1
A2
BE2
B1
B2
BE1
A1
B1
GND
1
2
3
4
8-Pin
L, U
8
7
6
5
Vcc
BE2
B2
A2
Product Pin Description
Pin Name
BEn
A2-A1
B2-B1
Vcc
GND
Description
Switch Enable
Bus A
Bus B
Power
Ground
Truth Table
(1)
BEn
X*
H
L
An
Hi-Z
Hi-Z
Bn
Bn
Hi-Z
Hi-Z
An
Vcc
GND
Vcc
Vcc
Function
Disconnect
Disconnect
Connect
Notes:
1. H
= High Voltage Level, L = Low Voltage Level
Hi-Z = High Impedance, X = Don鈥檛 Care
*A pull-up resistor should be provided for power-up protection.
1
PS8144C
01/11/01
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