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Vaishali Semiconductor
Vaishali Semiconductor

VS3125Q Datasheet Preview

VS3125Q Datasheet

Quad Bus Switch with Individual Active Low Enables

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VS3125Q pdf
VS3125
Quad Bus Switch with
Individual Active Low Enables
Applications
= 5v to 3.3V translation in mixed supply environment
= Hot Swap interface
= Video, audio switching
= Clock gating
= Logic replacement
General Description
The VS3125 contains a set of four high-speed, low-resistance bus switches. Each bus switch is individually
controlled by TTL-compatible, active-low control input (/xOE). The low ON resistance of VS3125 allows
inputs to be connected to outputs without adding propagation delay and without generating additional signal
noise.
The VS3125 is function and pinout compatible with QS3125. It enables 5V to 3.3V level translation when
used with an external diode in the power supply line. In addition, the high off-isolation between switch
terminals in the ‘disable’ mode, and the near-zero propagation delay in the ‘on’ state make the VS3V125 an
ideal interface element for hot-swapping applications.
Features
= Enhanced N-FET with no dc path to VCC or
GND in normal operating signal voltage range.
= Low impedance bidirectional data flow
= Pin-compatible with QS3125 & PI5C3125
switches
= Zero added ground bounce or signal noise
= TTL-compatible control signals
= Near-zero propagation delay
= 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
1A 2A 3A 4A
/1OE
/2OE
/3OE
/4OE
1Y 2Y 3Y 4Y
Figure 2. Pin Configuration
QSOP
NC
/1OE
1A
1Y
/2OE
2A
2Y
GND
1
2
3
4
5
6
7
8
16 VCC
15 /4OE
14 4A
13 4Y
12 /3OE
11 3A
10 3Y
9 NC
All Pins, Top View
NC= No Connect
2001-04-12
Page 1
MDSS-0011-01
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063



Vaishali Semiconductor
Vaishali Semiconductor

VS3125Q Datasheet Preview

VS3125Q Datasheet

Quad Bus Switch with Individual Active Low Enables

No Preview Available !

VS3125Q pdf
VS3125
Table 1. Pin Description
Name
1A – 4A
1Y – 4Y
/1OE - /4OE
I/O
I/O
I/O
I
Description
Data Input or Output
Data Input or Output
Bus Switch Enable
Table 2. Function Table
/xOE
L
H
Path
xA <-> xY
High Impedance
Function
Enable switch
Disable switch
Table 3. Absolute Maximum Ratings
Supply Voltage to Ground………………………….…..-0.5V to +7.0V
DC Switch Voltage VS……………………….………….-0.5V to +7.0V
DC Input Voltage VIN…………………………… ……...-0.5V to +7.0V
AC Input Voltage (Pulse Width < 20ns)……………….…………-3.0V
DC Output Sink Current per Switch Pin…………………...…..120mA
Maximum Power Dissipation…………………………….…..0.5 Watts
Storage Temperature………………………………...-65oC to +150oC
Note ABSOLUTE MAXIMUM CONTINUOUS RATINGS are those values beyond which damage to the device may
occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability.
Functional operation under absolute maximum rated conditions is not implied.
Table 4. Capacitance
TA = 25oC, f = 1MHz, VIN = 0V, VOUT = 0V
QSOP
Pins
Typ Max
Unit
Control Inputs
VSwitch Channels ( Switch OFF )
4 5 pF
5 7 pF
Note Capacitance is guaranteed, but not production tested. Total capacitance of a path, when the switch is closed, is
the sum of the switch terminal capacitances.
Table 5. Recommended Operating Conditions
Symbol
VCC
Parameter
Power supply voltage
Min Typ Max Units
4.5 5.5 V
VIL Low level input voltage
(Control inputs)
-0.5 0.8 V
VIH High level input voltage
2.0 5.5 V
(Control inputs)
TA
Operating free-air temperature
-40
85 oC
Note: All unused control inputs of the device must be held at Vcc or GND, to ensure proper device operation
2001-04-12
Page 2
MDSS-0011-01
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063


Part Number VS3125Q
Description Quad Bus Switch with Individual Active Low Enables
Maker Vaishali Semiconductor
Total Page 6 Pages
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