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IDTQS3383

HIGH-SPEED CMOS 10-BIT BUS EXCHANGE SWITCH

INDUSTRIALTEMPERATURERANGE

NOVEMBER 1999

1999 Integrated Device Technology, Inc.

DSC-5571/1

c

INDUSTRIAL TEMPERATURE RANGE

FEATURES:

• Enhanced N channel FET with no inherent diode to Vcc

•5

Ω

Ω

Ω

Ω

Ω bidirectional switches connect inputs to outputs

• Zero propagation delay, zero added ground bounce

• Undershoot clamp diodes on all switch and control inputs

• Bus exchange allows nibble swap

• Available in QSOP and SOIC packages

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

APPLICATIONS:

• Hot-swapping, hot-docking

• Voltage translation (5V to 3.3V)

• Resource sharing

• Crossbar switching

IDTQS3383

FUNCTIONAL BLOCK DIAGRAM

HIGH-SPEED CMOS 10-BIT

BUS EXCHANGE SWITCH

DESCRIPTION:

The QS3383 provides ten high-speed CMOS TTL-compatible bus

switches. The low ON resistance of the QS3383 allows inputs to be

connected to outputs without adding propagation delay and without gener-

ating additional ground bounce noise. The Bus Enable (BE) signal turns

the switches on. The Bus Exchange (BX) signal provides nibble swap of

the AB and CD pairs of signals. This exchange configuration allows byte

swapping of buses in systems. It can also be used as a 5-wide 2-to-1

multiplexer and to create low delay barrel shifters, etc.

The QS3383 is characterized for operation at -40°C to +85°C.

A4

C4

D4

B4

BX

BE

A0

C0

D0

B0