Truth Table
(1)
BEn
X*
H
L
An
Hi- Z
Hi- Z
Bn
Bn
Hi- Z
Hi- Z
An
V
CC
GND
V
CC
V
CC
Function
Disconnect
Disconnect
Connect
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PI3VT3306
2-Bit, 2-Port, Low Voltage
Translator Bus Switch
Product Features
Near zero propagation delay
Low ON resistance switches connect inputs to outputs
2.5V Supply Voltage Operation
2.5V or 1.8V switching
Packages available:
8-pin, 173 mil wide plastic TSSOP (L)
8-pin, 118 mil wide plastic MSOP (U)
Product Description
Pericom Semiconductors PI3VT series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.
The PI3VT3306 is a 2.5V or 3.3V 2-bit, 2-port bus switch designed
with a low ON resistance (5 ohms). The switches are turned ON or
enabled by the Bus Enable (BEn) input signal.
Given a 3.3V supply and an input voltage of 3.3V, the switch
translates to an output voltage of 2.5V. Similarly, when operated
with a 2.5V supply and given 2.5V inputs, the device translates the
outputs to 1.8V.
Applications
3.3V to 2.5V level shifting (voltage translation)
2.5V to 1.8V level shifting (voltage translation)
Logic Block Diagram
A1
BE1
B1
Product Pin Configuration
A2
BE2
B2
BE1
A1
B1
GND
8-Pin
L, U
V
CC
BE2
B2
A2
Product Pin Description
Pin Name
BEn
A2- A1
B2- B1
V
CC
GND
De s cription
Switch Enable
Bus A
Bus B
Power
Ground
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
PS8533
03/22/01
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
