1
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH253
2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
FEBRUARY 2014
2014 Integrated Device Technology, Inc. DSC-5945/11
c
IDTQS3VH253
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
2.5V / 3.3V DUAL 4:1 MUX/DEMUX
HIGH BANDWIDTH BUS SWITCH
FUNCTIONAL BLOCK DIAGRAM
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 impedance at the terminals.
The combination of near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH253 ideal for high perfor-
mance communication applications.
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:
• 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 - 4
ΩΩ
ΩΩ
Ω typical
• Flat RON characteristics over operating range
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent R
ON 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
S0
Y
A
I0 A
I1 A
I2 A
I3 A
I0 B
I1 B
I2 B
I3 B
Y B
S1
EA
EB
