VITESSE

SEMICONDUCTOR CORPORATION

Advance Product Information

VSC6464

64x64 Crosspoint Switch

G52219-0, Rev. 2.0

© VITESSE SEMICONDUCTOR CORPORATION

Page 1

8/4/98

741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896

Features

General Description

The VSC6464 is a 64x64 asynchronous (flow-through) or synchronous (clocked) high-speed crosspoint

switch. Any input can be multiplexed to any, some, or all outputs. The switch is fully non-blocking. All I/Os are

single-ended ECL. The part is packaged in a 208-pin plastic quad flat pack and consumes less than 8 Watts from

a single -2V power supply.

In the asynchronous mode, high speed digital data up to 500Mb/s can be switched with less than 25% pulse

width distortion. Skew is less than 1.5 ns between any two paths through the switch. In broadcast operation (one

input routed to two or more outputs), any two outputs will exhibit less than 750ps of skew.

In the synchronous mode, high-speed digital data up to 250 Mb/s can be switched with less than 750ps out-

put-to-output skew. The input and output registers have separate clock inputs.

VSC6464 Functional Block Diagram

• Synchronous or Asynchronous Operation

• 500Mb/s Asynchronous Operation

• 250Mb/s Synchronous Operation

• <750ps Output to Output Skew (Synchronous)

• <1.5ns Skew Input to Output (Asynchronous)

• Single Ended ECL I/O

• Separate Input and Output Register Clocks

• Single Supply: -2V + 5% @ 8 Watts (Max.)

• Package: 208PQFP

DIN<63:0>

SERC

CKI

REG

DOUT<63:0>

2:1

MUX

REG

2:1

MUX

64 x 64:1

MUX

CKO

SERD

SERS

MODE

SERIAL

TO

PARALLEL

64 6-BIT

REGISTERS

DEC