IDTQS32X384 Datasheet, PDF (1/5 Pages) Integrated Device Technology – QUICKSWITCH PRODUCTS HIGH-SPEED CMOS 20-BIT BUS SWITCH

IDTQS32X384
HIGH-SPEED CMOS 20-BIT BUS SWITCH
QUICKSWITCH^® PRODUCTS
HIGH-SPEED CMOS
20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
IDTQS32X384
FEATURES:
• Enhanced N channel FET with no inherent diode to VCC
• 5Ω bidirectional switches connect inputs to outputs
• Zero propagation delay
• Zero ground bounce
• Undershoot clamp diodes on all switch and control pins
• Four enables control five bits each
• TTL-compatible input and output levels
• Available in 48-pin QVSOP package
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Power conservation
• Capacitance reduction and isolation
• Bus isolation
• Clock gating
FUNCTIONAL BLOCK DIAGRAM
A0
B0
DESCRIPTION:
The QS32X384 provides a set of twenty high-speed CMOS TTL-
compatible bus switches. The low ON resistance of the QS32X384 allows
inputs to be connected to outputs without adding propagation delay and
without generating additional ground bounce noise. The Bus Enable (BE)
signals turn the switches on. Four Bus Enable signals are provided, one
for each of five bits of the 20-bit bus. The ‘384 family of QuickSwitch products
is ideal for switching wide digital buses, as well as hotplug buffering, and 5V
to 3V conversion.
The QS32X384 is characterized for operation at -40°C to +85°C.
A10
B10
A4
B4
A14
B14
A5
B5
A15
B15
A9
B9
BEA
BEC
BED
BEB
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c
2002 Integrated Device Technology, Inc.
A19
1
B19
APRIL 2002
DSC-5729/1