IDTQS3VH244_14 Datasheet, PDF (1/8 Pages) Integrated Device Technology – QUICKSWITCH PRODUCTS 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH

IDTQS3VH244
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
QUICKSWITCH^® PRODUCTS
2.5V / 3.3V 8-BIT HIGH
BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH244
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
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
• Bus switching and isolation
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS3VH244 HotSwitch is a high bandwidth, 8-bit bus switch. The
QS3VH244 has very low ON resistance, resulting in under 250ps propagation
delay through the switch. The switches can be turned ON under the control
of the LVTTL-compatible xG signal for bidirectional data flow with no added delay
or ground bounce. 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 QS3VH244 ideal for high performance
communications applications.
The QS3VH244 is characterized for operation from -40°C to +85°C.
1G
2G
1A1
1Y1
2A1
1A2
1Y2
2A2
1A3
1Y3
2A3
1A4
1Y4
2A4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2013 Integrated Device Technology, Inc.
2Y1
2Y2
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2Y4
MAY 2013
DSC-5894/14