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IDTQS32257 Datasheet, PDF (1/5 Pages) Integrated Device Technology – QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH QUAD 2:MUX/DEMUX | |||
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IDTQS32257
HIGH-SPEED CMOS QUICKSWITCH QUAD 2:1 MUX/DEMUX
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH
QUAD 2:MUX/DEMUX
IDTQS32257
FEATURES:
⢠Enhanced N channel FET with no inherent diode to Vcc
⢠5⦠bidirectional switches connect inputs to outputs
⢠Pin compatible with the 74F257, 74FCT257, and 74FCT257T
⢠Zero propagation delay, zero ground bounce
⢠Undershoot clamp diodes on all switch and control inputs
⢠25⦠resistors for low noise
⢠TTL-compatible control inputs
⢠Available in QSOP and S1 packages
DESCRIPTION:
The QS32257 is a high-speed CMOS LVTTL-compatible Quad 2:1
multiplexer/demultiplexer. The QS32257 is a function and pinout compatible
QuickSwitch version of the 74F257, 74FCT257, and the 74ALS/AS/LS257
Quad 2:1 multiplexers. The QS32257 has 25⦠series resistors to reduce
ground noise.
Mux/Demux devices provide an order of magnitude faster speed than
equivalent logic devices.
The QS32257 is characterized for operation at -40°C to +85°C.
APPLICATIONS:
⢠Logic replacement (data processing)
⢠Video, audio, graphics switching, muxing
⢠Hot-swapping, hot-docking
⢠Voltage translation (5V to 3.3V)
⢠Bus funneling
FUNCTIONAL BLOCK DIAGRAM
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YA
YB
YC
YD
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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c 2004 Integrated Device Technology, Inc.
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JANUARY 2004
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