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IDTQS33X253

HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX

INDUSTRIALTEMPERATURERANGE

JANUARY 2000

1999

Integrated Device Technology, Inc.

DSC-5761/-

c

IDTQS33X253

INDUSTRIAL TEMPERATURE RANGE

HIGH-SPEED CMOS

QUICKSWITCH MULTIWIDTH

™

24:6 MUX/DEMUX

DESCRIPTION:

The QS33X253 is a high-speed CMOS 24:6 (3, dual 4:1) multiplexer/

demultiplexer. The QS33X253 is a member of the MultiWidth™ family and

is functionally compatible to three of the QuickSwitch version of the 74F253,

74FCT253, and the 74ALS/AS/LS253 Dual 4:1 multiplexers. The low ON

resistance of the QS33X253 allows inputs to be connected to outputs without

adding propagation delay and without generating additional ground bounce

noise. TTL-compatible control circuitry with "Break-before-make" feature

avoids bus contention on the demux side. This part is ideal for video

switching and four way memory bank interleaving applications.

Mux/Demux devices provide an order of magnitude faster speed than

equivalent logic devices.

The QS33X253 is characterized for operation at -40°C to +85°C.

EE

EF

EA

EB

EC

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FUNCTIONAL BLOCK DIAGRAM

FEATURES:

− Enhanced N channel FET with no inherent diode to Vcc

− Bidirectional switches connect inputs to outputs

− 24:6 Mux/Demux switches

− Zero propagation delay, zero ground bounce

− Individual controls for each bank

− Undershoot clamp diodes on all switch and control pins

− TTL-compatible control inputs

− Available in 48-pin QVSOP Package

APPLICATIONS

− Logic replacment

− Video, audio, graphics switching, muxing

− Hot-swapping, hot-docking

− Voltage translation (5V to 3.3V)