PI3VT3384 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 10-Bit, 2-Port, Low Voltage Translator Bus Switch

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10-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:
– 24-pin, 150 mil wide plastic QSOP (Q)
– 24-pin, 173 mil wide plastic TSSOP (L)
Applications
• 3.3V to 2.5V level shifting (voltage translation)
• 2.5V to 1.8V level shifting (voltage translation)
Logic Block Diagram
Product Description
Pericom Semiconductor’s PI3VT series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry leading performance.
The PI3VT3384, is a 2.5V or 3.3V 8-bit, 2-port bus switch, is 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.
Product Pin Configuration
A0
A4
A5
A9
BEA
BEB
B0
BEA 1
24 VCC
B0 2
23 B9
B4
A0 3
22 A9
A1 4
21 A8
B1 5 20-Pin 20 B8
B2 6 ^L,Q 19 B7
B5
A2 7
18 A7
A3 8
17 A6
B3 9
16 B6
B9
B4 10
15 B5
A4 11
14 A5
GND 12
13 BEB
Truth Table⁽¹⁾
Function BEA
BEB
B0-B4
Disconnect
H
H
Hi-Z
Connect
L
H
A0-A4
Connect
H
L
Hi-Z
Connect
L
L
A0-A4
Notes:
1. H = High Voltage Level; X = Low Voltage Level
L = Low Voltage Level; Hi-Z = High Impedance
B5–B9
Hi-Z
Hi-Z
A5-A9
A5-A9
Product Pin Description
Pin Name
Description
BEA, BEB
Bus Enable Input (Active LOW)
A0-A9
Bus A
B0-A9
Bus B
GND
Ground
V_CC
Power
1
PS8529 03/19/01