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INDUSTRIALTEMPERATURERANGE

IDTQS3VH16210

2.5V / 3.3V 20-BIT 2 PORT, HIGH BANDWIDTH BUS SWITCH

MARCH 2002

2002 Integrated Device Technology, Inc.

DSC-5881/4

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INDUSTRIAL TEMPERATURE RANGE

FUNCTIONAL BLOCK DIAGRAM

DESCRIPTION:

The QS3VH16210 HotSwitch with 20-bit flow-though pin is a high

bandwidth bus switch. The QS3VH16210 has very low ON resistance,

resulting in under 250ps propagation delay through the switch. The

switchesarecontrolledbyactivelowenable(xOE)controls. TheQS3VH16210

is organized as a dual 10-bit, 2-port bus switch with separate, xOE control

inputs. In the OFF and ON states, the switches are 5V-tolerant. In the OFF

state, the switches offer very high impedance at the terminals.

The combination of near-zero propagation delay, high OFF impedance,

and over-voltage tolerance makes the QS3VH16210 ideal for high perfor-

mancecommunicationsapplications.

The QS3VH16210 is characterized for operation from -40

°C to +85°C.

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

FEATURES:

• N channel FET switches with no parasitic diode to Vcc

−−−−− Isolation under power-off conditions

−−−−− No DC path to Vcc or GND

−−−−− 5V tolerant in OFF and ON state

• 5V tolerant I/Os

Ω

Ω

Ω

Ω

Ω typical

• Rail-to-rail switching 0 - 5V

• Bidirectional dataflow with near-zero delay: no added ground

bounce

• Vcc operation: 2.3V to 3.6V

• High bandwidth - up to 500 MHz

• LVTTL-compatible control Inputs

• Undershoot Clamp Diodes on all switch and control Inputs

• Low I/O capacitance, 4pF typical

• Available in SSOP and TSSOP packages

APPLICATIONS:

• Hot-swapping

• 10/100 Base-T, Ethernet LAN switch

• Low distortion analog switch

• Replaces mechanical relay

• ATM 25/155 switching

IDTQS3VH16210

2.5V / 3.3V 20-BIT 2-PORT, HIGH

BANDWIDTH BUS SWITCH

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1

1O E

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2

2

2O E

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