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Integrated Device - QUICKSWITCH PRODUCTS 2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BAND WIDTH BUS SWITCH

Numéro de référence IDT3VH257Q
Description QUICKSWITCH PRODUCTS 2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BAND WIDTH BUS SWITCH
Fabricant Integrated Device 
Logo Integrated Device 





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IDT3VH257Q fiche technique
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS 2.5V/3.3V IDTQS3VH257
QUAD 2:1 MUX/DEMUX HIGH BAND-
WIDTH BUS SWITCH
FEATURES:
• N channel FET switches with no parasitic diode to VCC
– Isolation under power-off conditions
– No DC path to VCC or GND
– 5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Low RON - 4typical
• Flat RON characteristics over operating range
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent RON matching between channels
• VCC operation: 2.3V to 3.6V
• High bandwidth - up to 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in QSOP, SOIC, and TSSOP packages
APPLICATIONS:
• Hot-swapping
• Multiplexing/demultiplexing
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
S
DESCRIPTION:
The QS3VH257 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high
bandwidth bus switch. The QS3VH257 has very low ON resistance, resulting
in under 250ps propagation delay through the switch. The Select (S) input
controlsthedataflow. Themultiplexers/demultiplexersareenabledwhenthe
Enable(E)inputislow. IntheONstate,theswitchescanpasssignalsupto5V.
In the OFF state, the switches offer very high impedence at the terminals.
The combination of near-zero propagation delay, high OFF impedance, and
over-voltage tolerance makes the QS3VH257 ideal for high performance
communicationapplications.
The QS3VH257 is characterized for operation from -40°C to +85°C.
E
YA
YB
YC
YD
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2003 Integrated Device Technology, Inc.
1
I0A
I1A
I0B
I1B
I0C
I1C
I0D
I1D
MARCH 2003
DSC-5596/11

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