Head Office:

PMC-Sierra, Inc.

#105 - 8555 Baxter Place

Burnaby, B.C. V5A 4V7

Canada

Tel: 604.415.6000

Fax: 604.415.6200

2.4 Gbit/s ATM Layer Solution

To order documentation,

send email to:

document@pmc-sierra.com

or contact the head office,

Attn: Document Coordinator

All product documentation is available

on our web site at:

http://www.pmc-sierra.com

For corporate information,

send email to:

info@pmc-sierra.com

PMC-1990444 (p2)

© Copyright PMC-Sierra,

Inc. 2000. All rights reserved.

March 2000

S/UNI is a registered

trademark of PMC-Sierra,

Inc. SCI-PHY is a trademark

of PMC-Sierra, Inc.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Preliminary

PM7325 S/UNI®-ATLAS-3200

PACKAGING

• Provides a standard five signal

P1149.1 JTAG test port for boundary

scan board test purposes.

• Implemented in low power, 0.18

micron, 1.5 V CMOS technology with

2.5 V embedded DRAM, 2.5 V external

SRAM interface, and 3.3 V external

interfaces (excluding the SRAM

interface).

• Packaged in a 768 pin Tape Ball Grid

Array (TBGA) package.

APPLICATIONS

• Core ATM switches.

• Wide Area Network ATM Core and

Edge Switches.

• ATM Enterprise and Workgroup

Switches.

• Broadband Access Multiplexers.

TYPICAL APPLICATION

S/UNI-ATLAS-3200 OC-48 PORT CARD APPLICATION

Traffic

Manager

UTOPIA or POS-PHY (Level 3)

Ingress Direction

Egress Direction

Ingress Mode

S/UNI-ATLAS-

3200 (+SRAM)

Egress Mode

S/UNI-ATLAS-

3200 (+SRAM)

16 bit SCI PHY (Backward

Cell Interface)

PHY

Traffic

Manager

Switch

Fabric