pi3vt3245 Pericom Semiconductor Corporation, pi3vt3245 Datasheet

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pi3vt3245

Manufacturer Part Number
pi3vt3245
Description
3.3v To 2.5v / 2.5v To 1.8v, 8-bit, 2-port, Low Voltage Translator Bus Switch
Manufacturer
Pericom Semiconductor Corporation
Datasheet

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Company:
Part Number:
pi3vt3245-ALEX
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Part Number:
pi3vt3245LE
Quantity:
557
Part Number:
pi3vt3245LEX
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Features
• Near-Zero propagation delay
• Low On-Resistance switches connect inputs to outputs
• 2.5V to 3.3V Supply voltage operation
• 2.5V or 1.8V switching
• Packaging (Pb-free & Green available):
Applications
• 3.3V to 2.5V level shifting (voltage translation)
• 2.5V to 1.8V level shifting (voltage translation)
Block Diagram
Truth Table
Notes:
1.
– 20-pin, 150-mil wide plastic QSOP (Q)
– 20-pin, 173-mil wide plastic TSSOP (L)
H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Disconnect
Function
Connect
BE
A
A
0
7
(1)
BE
H
L
A0-7
Hi-Z
B0-7
B
B
0
7
1
Description
Pericom Semiconductor’s PI3VT series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry leading performance.
The PI3VT3245 is a 2.5V or 3.3V 8-bit, 2-port bus switch
designed with a low On-Resistance (5Ω). The switches are turned
ON or enabled by the Bus Enable (BE) 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.
Pin Configuration
Pin Description
BE
A
B
V
GND
0
0
CC
-A
-B
Pin Name
7
7
GND
NC
A
A
A
A
A
A
A
A
1
0
2
3
4
5
6
7
Bus Enable Input (Active Low)
Bus A
Bus B
Power
Ground
10
1
2
3
4
5
6
7
8
9
8-Bit, 2-Port, Low Voltage
Translator Bus Switch
Description
20
19
18
17
16
15
14
13
12
11
V
BE
B
B
B
B
B
B
B
B
PI3VT3245
PS8530B
CC
0
1
2
3
4
5
6
7
08/13/04

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pi3vt3245 Summary of contents

Page 1

... Pericom Semiconductor’s PI3VT series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading performance. The PI3VT3245 is a 2.5V or 3.3V 8-bit, 2-port bus switch designed with a low On-Resistance (5Ω). The switches are turned ON or enabled by the Bus Enable (BE) input signal. ...

Page 2

... Exposure to absolute maximum rating conditions for extended periods may affect reliability. = 3.3V ±10%) CC (2) Min. Typ. Max -8mA 15 = -8mA 6 = -8mA 25 2.3 2.5 1.8 Test Conditions Typ. 3 5.0 IN 11.2 PI3VT3245 Units +0.3V V 0.8 ±1 ±1 µA ± Ω 2.9 V Units pF PS8530B 08/13/04 ...

Page 3

... GND Max Conditions 500Ω Conditions 500Ω 3 PI3VT3245 8-Bit, 2-Port, Low Voltage Translator Bus Switch (1) (2) Min. Typ. Max ( Com. (1) Min. Max. = 50pF, L 0.25 = 500Ω L 1.5 9.8 = 50pF 500Ω ...

Page 4

... DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS 4 8-Bit, 2-Port, Low Voltage Translator Bus Switch .008 0.20 MIN. .008 .013 0.20 0.33 0˚-6˚ .016 .035 0.41 0.89 .041 1.04 REF .015 x 45˚ 0.38 Detail A 0.178 .007 0.254 .010 .016 0.41 .050 1.27 .228 .244 5.79 6.19 .004 0.09 0.20 .008 0.45 .018 0.75 .030 .238 .269 6.1 6.7 PS8530B PI3VT3245 08/13/04 ...

Page 5

... Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com Packaging Code L 20-pin TSSOP L Pb-free & Green, 20-pin TSSOP Q 20-pin QSOP Q Pb-free & Green, 20-pin QSOP 5 PI3VT3245 8-Bit, 2-Port, Low Voltage Translator Bus Switch Package Description PS8530B 08/13/04 ...

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