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PI5C3305
2-Bit Bus Switch with
Individual Enables
Product Features
• 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
• Packages available:
– 8-pin 173 mil wide plastic TSSOP (L)
– 8-pin 118 mil wide plastic MSOP (U)
Product Description
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry leading speed grades.
The PI5C3305 is a 2-bit bus switch designed with two individual
5-ohm bus switches with fast indiviual enables. When enabled via
the associated Bus Enable (BE) pin, the “A” pin is directly connected
to the “B” pin for that particular gate. The bus switch introduces no
additional propagation delay or additional ground bounce noise.
The PI5C3305 device has active HIGH enables.
Logic Block Diagram
Product Pin Configuration
A1
B1
BE1
BE1
A1
B1
B2
A2
GND
1
2
3
4
8-Pin
L, U
8
7
6
5
VCC
BE2
B2
A2
BE2
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*
L
H
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’t Care
*A pull-up resistor should be provided for power-up protection.
1
PS8331C
01/11/01
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
