IDTQS32XVH384_11 Datasheet, PDF (1/8 Pages) Integrated Device Technology – 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH

IDTQS32XVH384
2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH^® PRODUCTS
2.5V/3.3V 20-BIT HIGH
BANDWIDTH BUS SWITCH
IDTQS32XVH384
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 48-pin QVSOP (S1) package
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
A0
B0
DESCRIPTION:
The QS32XVH384 HotSwitch is a high bandwidth, 20-bit bus switch.
The QS32XVH384 has very low ON resistance, resulting in under 250ps
propagation delay through the switch. Four banks of five switches are
controlled by independent (xOE), LVTTL compatible signals for bidirec-
tional 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 impedance,
and over-voltage tolerance makes the QS32XVH384 ideal for high perfor-
mance communications applications.
The QS32XVH384 is characterized for operation from -40°C to +85°C.
A10
B10
A4
B4
A14
B14
A5
B5
A15
B15
A9
B9
A19
1OE
4OE
3OE
2OE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c _{2011 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.}
B19
SEPTEMBER 2011
DSC-5946/14