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IDTQS32257

HIGH-SPEED CMOS QUICKSWITCH QUAD 2:1 MUX/DEMUX

INDUSTRIAL TEMPERATURE RANGE

QUICKSWITCH

廬

PRODUCTS

HIGH-SPEED CMOS

QUICKSWITCH

QUAD 2:MUX/DEMUX

FEATURES:

鈥?/div>

IDTQS32257

DESCRIPTION:

Enhanced N channel FET with no inherent diode to Vcc

5鈩?bidirectional switches connect inputs to outputs

鈩?/div>

Pin compatible with the 74F257, 74FCT257, and 74FCT257T

Zero propagation delay, zero ground bounce

Undershoot clamp diodes on all switch and control inputs

25鈩?resistors for low noise

鈩?/div>

TTL-compatible control inputs

Available in QSOP and S1 packages

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鈩?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擄C to +85擄C.

APPLICATIONS:

鈥?/div>

Logic replacement (data processing)

Video, audio, graphics switching, muxing

Hot-swapping, hot-docking

Voltage translation (5V to 3.3V)

Bus funneling

FUNCTIONAL BLOCK DIAGRAM

S

E

I

0A

Y

A

I

1A

I

0B

Y

B

I

1B

I

0C

Y

C

I

1C

I

0D

Y

D

I

1D

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

INDUSTRIAL TEMPERATURE RANGE

1

c

2004 Integrated Device Technology, Inc.

JANUARY 2004

DSC-5750/4

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IDTQS32257S1 Datasheet

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