PI5C3305 Datasheet, PDF (1/3 Pages) Pericom Semiconductor Corporation – 2-Bit Bus Switch with Individual Enables

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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
A1
BE1
A2
BE2
Product Pin Configuration
B1
BE1 1
8 VCC
A1 2 ^8-Pin ₇ BE2
B1 3
L, U
6 B2
B2
GND 4
5 A2
Product Pin Description
Pin Name
Description
BEn
Switch Enable
A2-A1
Bus A
B2-B1
Bus B
Vcc
Power
GND
Ground
Truth Table⁽¹⁾
BEn
An
Bn
Vcc
Function
X*
Hi-Z Hi-Z GND Disconnect
L
Hi-Z Hi-Z Vcc Disconnect
H
Bn
An
Vcc
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