IDTQS3VH253 Datasheet, PDF (1/8 Pages) Integrated Device Technology – QUICKSWITCH-R PRODUCTS 2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BAND-WIDTH BUS SWITCH

IDTQS3VH253
2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH^® PRODUCTS 2.5V / 3.3V IDTQS3VH253
DUAL 4:1 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 - 4Ω typical
• 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 and TSSOP packages
APPLICATIONS:
• Hot-swapping
• Multiplexing/demultiplexing
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
S0
S1
EA
EB
DESCRIPTION:
The QS3VH253 HotSwitch Dual 4:1 multiplexer/demultiplexer is a high
bandwidth bus switch. The QS3VH253 has very low ON resistance, resulting
in under 250ps propagation delay through the switch. The Select (Sx) inputs
control the data flow. The multiplexers/demultiplexers are enabled when the
Enable (EA, EB) inputs are low. In the ON state, the switches can pass signals
up to 5V. In the OFF state, the switches offer very high impedence at the
terminals.
The combination of near-zero propagation delay, high OFF impedence, and
over-voltage tolerance makes the QS3VH253 ideal for high performance
communication applications.
The QS3VH253 is characterized for operation from -40°C to +85°C.
YA
YB
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2002 Integrated Device Technology, Inc.
I0 A
I1 A
I2 A
I3 A
I0 B
I1 B
I2 B
I3 B
AUGUST 2002
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