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PDF IDTQS33X257 Data sheet ( Hoja de datos )

Número de pieza IDTQS33X257
Descripción QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 24:12 MUX/DEMUX
Fabricantes Integrated Device 
Logotipo Integrated Device Logotipo



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IDTQS33X257
HIGH-SPEED CMOS QUICKSWITCH 24:12 MUX/DEMUX
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH 24:12 MUX/DEMUX
IDTQS33X257
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• Bidirectional signal flow
• 24:12 Mux/Demux switches connect inputs to outputs
• Individual controls for each bank
• Zero propagation delay, zero ground bounce
• Undershoot clamp diodes on all switch and control inputs
• TTL-compatible control inputs
• Available in 48-pin QVSOP package
APPLICATIONS:
• Logic replacement
• Video, audio, graphics switching, muxing
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Bus funneling
FUNCTIONAL BLOCK DIAGRAM
S0
E0
YA
YB
YC
YD
I0 A
I1 A
I0 B
I1 B
I0 C
I1 C
I0 D
I1 D
DESCRIPTION:
The QS33X257 is a high-speed CMOS TTL-compatible 24:12 multi-
plexer/demultiplexer. The QS33X257 is functionally compatible to three of
the QuickSwitch version of the 74F257, 74FCT257, and the 74ALS/AS/
LS257 Quad 2:1 multiplexers. The low ON resistance of the QS33X257
allows inputs to be connected to outputs without adding propagation delay
and without generating additional ground bounce noise. This part will be
used in wide bus multiplexing where board space is at a premium.
Mux/Demux devices provide an order of magnitude faster speed than
equivalent logic devices.
The QS33X257 is characterized for operation at -40°C to +85°C.
S2
E2
YI
YJ
YK
YL
I0 I
I1 I
I0 J
I1 J
I0 K
I1K
I0 L
I1 L
S1
E1
I0E
YE
I1E
I0F
YF
I1F
I0G
YG
I1G
I0H
YH
I1H
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2000 Integrated Device Technology, Inc.
1
MARCH 2000
DSC-5763/1

1 page




IDTQS33X257 pdf
IDTQS33X257
HIGH-SPEED CMOS QUICKSWITCH 24:12 MUX/DEMUX
ORDERING INFORMATION
IDTQS XXXXX
XX
Device Type Package
X
Process
INDUSTRIALTEMPERATURERANGE
Blank
Industrial (-40°C to +85°C)
Q1 QVSOP
33X257
High Speed CMOS Quickswitch 24:12 Mux/Demux
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
for Tech Support:
(408) 654-6459
5

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