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Vaishali Semiconductor
Vaishali Semiconductor

VS3V2253 Datasheet Preview

VS3V2253 Datasheet

High-speed 3.3V CMOS VSwitch Dual 4:1 Mux/Demux

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VS3V2253 pdf
Advance Information
VS3V253 / VS3V2253
High-speed 3.3V CMOS VSwitch
Dual 4:1 Mux/Demux
Applications
= 3.3V to 2.5V translation
= 2.5V to 1.8V translation
= Hot-Swapping
= Logic replacement
= Memory bank, video, and audio
switching
General Description
The VS3V253 is a high-speed LVTTL–compatible dual 4:1 multiplexer/demultiplexer. The VS3V2253
contains two mux/demux channels with common path control (S0 & S1) and individual active LOW enables
/EA and /EB. The low ON resistance of VS3V253 allows inputs to be connected to outputs without adding
propagation delay and without generating additional signal noise. The VS3V2253 has 25resistors in series
with the switches to reduce ground-bounce noise and signal reflections.
The VS3V253 and VS3V2253 mux/demux switches are designed for 3.3V to 2.5V, or 2.5V to 1.8V
translation, without any external components. These switches also offer very high impedance between
switch terminals in the power off or ‘disabled’ state. This feature, combined with near-zero propagation
delay in the ‘on’ state, makes VS3V253 and VS3V2253 ideal interface elements for hot-swapping
applications.
Features
= Enhanced N-FET with no DC path to VCC
or GND in normal operating signal voltage
range.
= Low impedance switches connect inputs to
outputs with near-zero propagation delay:
5(VS3V253) and 25(VS3V2253)
= Pin-compatible with 74LVC253 or
equivalent logic devices
= Zero added ground bounce or signal noise
= Break-before-make feature
= 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
S0
S1
/EA
/EB
YA
YB
Figure 2. Pin Configuration
QSOP
/EA 1
16 VCC
S1 2
15 /EB
I3A 3
14 S0
I0A
I2A 4
13 I3B
I1A
I1A 5
12 I2B
I2A
I3A
I0B
I0A
YA
GND
6
7
8
11 I1B
10 I0B
9 YB
I1B
I2B
I3B
(All Pins Top View)
2000-11-28
Page 1
MDSS-0003-01
Vaishali Semiconductor 1300 White Oaks Road Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063



Vaishali Semiconductor
Vaishali Semiconductor

VS3V2253 Datasheet Preview

VS3V2253 Datasheet

High-speed 3.3V CMOS VSwitch Dual 4:1 Mux/Demux

No Preview Available !

VS3V2253 pdf
VS3V253/VS3V2253
Table 1. Pin Description
Name
I/O
Description
IXA, IXB
I/O
Data Input or Output
S0, S1
I
Select Input
/EA, /EB
I
Enable Input
YA - YB
I/O
Data Output or Input
Table 2. Function Table
Inputs
Select
/EA /EB S1 S0
H XXX
Outputs
YA YB
Hi-Z X
X HXX X
Hi-Z
L L L L I0A
I0B
L
LLH
I1A
I1B
L L H L I2A
I2B
L
L HH
I3A
I3B
Function
Disable A
Disable B
S1-0 = 0
S1-0 = 1
S1-0 = 2
S1-0 = 3
Advance Information
Table 3. Absolute Maximum Ratings
Supply Voltage to Ground………………………….…..-0.5V to +4.6V
DC Switch Voltage VS……………………….………….-0.5V to +4.6V
DC Input Voltage VIN…………………………………...-0.5V to +4.6V
AC Input Voltage (Pulse Width < 20ns)……………….…………-3.0V
DC Output Sink Current per Switch Pin…………………...…..128 mA
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. Correct functional operation
while operating in the absolute maximum rated conditions is not implied.
Table 4. Capacitance
TA = 25oC, f = 1 MHz, VIN = 0V, VOUT = 0V
QSOP
Pins
Operation Typ
Max
Unit
Control Inputs
VSwitch Channels
Demux
45
57
pF
pF
(Switch OFF)
Mux
78
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.
2000-11-28
Page 2
MDSS-0003-01
Vaishali Semiconductor 1300 White Oaks Road Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063


Part Number VS3V2253
Description High-speed 3.3V CMOS VSwitch Dual 4:1 Mux/Demux
Maker Vaishali Semiconductor
Total Page 6 Pages
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