1

IDTQS3253

HIGH-SPEED CMOS QUICKSWITCH DUAL 4:1 MUX/DEMUX

INDUSTRIALTEMPERATURERANGE

AUGUST 2001

2001 Integrated Device Technology, Inc.

DSC-5755/3

c

IDTQS3253

INDUSTRIAL TEMPERATURE RANGE

FUNCTIONAL BLOCK DIAGRAM

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

FEATURES:

• Enhanced N channel FET with no inherent diode to Vcc

•5

Ω

Ω

Ω

Ω

Ω bidirectional switches connect inputs to outputs

• 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 SOIC, QSOP, and S1 packages

APPLICATIONS:

• Logic replacement

• Video, audio, graphics switching, muxing

• Hot-swapping, hot-docking

• Voltage translation (5V to 3.3V)

• Power conservation

• Bus funneling

HIGH-SPEED CMOS

QUICKSWITCH

DUAL 4:1 MUX/DEMUX

DESCRIPTION:

The QS3253 is a high-speed CMOS TTL-compatible dual 4:1 multi-

plexer/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.

EA

EB