IDTQS3251 Datasheet, PDF (1/5 Pages) Integrated Device Technology – QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 8:1 MUX/DEMUX

IDTQS3251
HIGH-SPEED CMOS QUICKSWITCH 8:1 MUX/DEMUX
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH^® PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH 8:1 MUX/DEMUX
IDTQS3251
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• 5Ω bidirectional switches connect inputs to outputs
• Pin compatible with the 74F251, 74FCT251, and 74FCT251T
• Zero propagation delay, zero ground bounce
• Undershoot clamp diodes on all switch and control inputs
• TTL-compatible control inputs
• Available in SOIC and QSOP packages
APPLICATIONS:
• Logic replacement
• Video, audio, graphics switching, muxing
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
FUNCTIONAL BLOCK DIAGRAM
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DESCRIPTION:
The QS3251 is a high-speed CMOS TTL-compatible 8:1 multiplexer/
demultiplexer. The QS3251 has 3-state outputs. The QS3251 is a function
and pinout compatible version of the 74F251, 74FCT251 and the 74ALS/
AS/LS251 8:1 multiplexers. The low ON resistance of the QS3251 allows
inputs to be connected to outputs without adding propagation delay and
without generating additional ground bounce noise.
Mux/Demux devices provide an order of magnitude faster speed than
equivalent logic devices.
The QS3251 is characterized for operation at -40°C to +85°C.
Y
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2000 Integrated Device Technology, Inc.
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FEBRUARY 2000
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