IDTQS3253
HIGH-SPEED CMOS QUICKSWITCH DUAL 4:1 MUX/DEMUX
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH
DUAL 4:1 MUX/DEMUX
IDTQS3253
FEATURES:
DESCRIPTION:
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The QS3253 is a high-speed CMOS TTL-compatible dual 4:1 multiplexer/demultiplexer with 3-state outputs. The QS3253 is function and
pinout compatible version of the 74F253, 74FCT253, and the 74ALS/AS/
LS253 dual 4:1 multiplexers. The low ON resistance of the QS3253 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 QS3253 is characterized for operation at -40°C to +85°C.
Enhanced N channel FET with no inherent diode to Vcc
5Ω bidirectional switches connect inputs to outputs
Ω
Pin compatible with the 74F253, 74FCT253, and 74FCT253T
Zero propagation delay, zero ground bounce
Undershoot clamp diodes on all switch and control inputs
TTL-compatible control inputs
Available in QSOP and S1 packages
APPLICATIONS:
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Logic replacement
Video, audio, graphics switching, muxing
Hot-swapping, hot-docking
Voltage translation (5V to 3.3V)
Power conservation
Bus funneling
FUNCTIONAL BLOCK DIAGRAM
S0
S1
EA
EB
I 0A
I 1A
YA
I 2A
I 3A
I 0B
I 1B
YB
I 2B
I 3B
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
OCTOBER 2008
1
c
2006 Integrated Device Technology, Inc.
DSC-5755/6
