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INDUSTRIALTEMPERATURERANGE

IDTQS3VH253

2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH

AUGUST 2002

2002 Integrated Device Technology, Inc.

DSC-5945/7

c

IDTQS3VH253

INDUSTRIAL TEMPERATURE RANGE

DUAL 4:1 MUX/DEMUX HIGH BAND-

WIDTH BUS SWITCH

FUNCTIONAL BLOCK DIAGRAM

DESCRIPTION:

The QS3VH253 HotSwitch Dual 4:1 multiplexer/demultiplexer is a high

bandwidthbusswitch. TheQS3VH253hasverylowONresistance,resulting

inunder250pspropagationdelaythroughtheswitch. TheSelect(Sx)inputs

controlthedataflow. Themultiplexers/demultiplexersareenabledwhenthe

Enable(EA,EB)inputsarelow. IntheONstate,theswitchescanpasssignals

up to 5V. In the OFF state, the switches offer very high impedence at the

terminals.

Thecombinationofnear-zeropropagationdelay,highOFFimpedence,and

over-voltage tolerance makes the QS3VH253 ideal for high performance

communicationapplications.

The QS3VH253 is characterized for operation from -40

°C to +85°C.

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

APPLICATIONS:

• Hot-swapping

• Multiplexing/demultiplexing

• Low distortion analog switch

• Replaces mechanical relay

• ATM 25/155 switching

FEATURES:

– Isolationunderpower-offconditions

– 5V tolerant in OFF and ON state

• 5V tolerant I/Os

Ω

Ω

Ω

Ω

Ω typical

• Rail-to-rail switching 0 - 5V

• Bidirectional dataflow with near-zero delay: no added ground

bounce

• 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 and TSSOP packages

S0

S1

EA

EB