PI3VT3306 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
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)
Applications
3.3V to 2.5V level shifting (voltage translation)
2.5V to 1.8V level shifting (voltage translation)
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.
Logic Block Diagram
A1
B1
BE1
A2
B2
BE2
Product Pin Configuration
BE1
VCC
A1
8-Pin
BE2
B1
L, U
B2
GND
A2
Truth Table(1)
BEn
An
Bn
VCC
Function
X*
Hi-Z
Hi-Z
GND Disconnect
H
Hi-Z
Hi-Z
VCC
Disconnect
L
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
Product Pin Description
Pin Name
BEn
A2-A1
B2-B1
VCC
GND
Description
Switch Enable
Bus A
Bus B
Power
Ground
1
PS8533 03/22/01