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VS3345Q fiches techniques PDF

Vaishali Semiconductor - High Speed CMOS VSwitch 8-Bit Bus Switches with Active High & Low Enables

Numéro de référence VS3345Q
Description High Speed CMOS VSwitch 8-Bit Bus Switches with Active High & Low Enables
Fabricant Vaishali Semiconductor 
Logo Vaishali Semiconductor 





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VS3345Q fiche technique
VS3345 / VS32345
High Speed CMOS VSwitch
8-Bit Bus Switches with
Active High & Low Enables
Applications
= 5V to 3.3V translation in mixed-supply environment
= Hot-swap interface
= Logic replacement
= Bus isolation
General Description
The VS3345 and VS32345 are high-speed TTL–compatible 8-bit bus switches. The VS3345 contains eight high-speed
bus switches, with common active low (/OE) and active high (OE) enables. The low ON resistance of the VS3345
allows inputs to be connected to outputs, without adding propagation delay and without generating additional signal
noise. The VS32345 has 25resistors in series with the switches to reduce ground-bounce noise and signal reflection.
The VS3345 and VS32345 bus switches switches enable 5V to 3.3V translation when used with a diode in the power
supply line. In addition, the high off-isolation in the ‘disable’ mode makes VS3345 and VS32345 ideal interface
elements for hot-swap applications.
Features
= Enhanced N-FET with no DC path to VCC
or GND in normal operating signal voltage
range.
= Low impedance bidirectional data flow:
5(VS3345) and 25(VS32345)
= Near-zero propagation delay
= Zero added ground bounce or signal noise
= TTL-compatible control signals
= Undershoot clamp diodes on all switch and
control pins
= ESD rating >2000V (Human Body Model)
or >200V (Machine Model)
= Latch-up current >100mA
= Available in 150-mil wide QSOP package
Figure 1. Functional Block Diagram
Figure 2. Pin Configuration
(All Pins Top View)
OE
/OE
A0 A1 A2 A3 A4 A5 A6 A7
B0 B1 B2 B3 B4 B5 B6 B7
QSOP
OE
A0
A1
A2
A3
A4
A5
A6
A7
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 /OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
2001-04-12
Page 1
MDSS-0010-01
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063

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