BCM5676A1KEB Broadcom, BCM5676A1KEB Datasheet - Page 2

• Manufacturer Part Number: BCM5676A1KEB
• Manufacturer: Broadcom

Specifications of BCM5676A1KEB

• Lead Free Status / RoHS Status: Not Compliant

General Description
The Broadcom BCM5676 switch fabric is the central component of the
modular and highly scalable StrataXGS™ Gigabit Ethernet switch
architecture. StrataXGS components can be applied in a wide variety of
configurations, enabling system designers to strategically balance cost,
port density, and performance in the products they build.
Scalability
Switches based on the BCM5676 offer world-class scalability and
performance when used in conjunction with other StrataXGS family
components. A BCM5676-based switch fabric can scale up to as many
as 768-GE ports or 64 10-GE ports in the same network. A multistage
switch fabric using the StrataXGS family can have a bandwidth capacity
of up to 750 Gbits.
Highly Integrated
The integration of Broadcom’s robust XAUI-compatible serializer/
deserializer (SerDes) interface on each BCM5676 port reduces board
complexity. The XAUI interface can be used to route high-speed signals
Broadcom
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other
trademarks mentioned are the property of their respective owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2004 by BROADCOM CORPORATION. All rights reserved.
5676-PB00-R
®
, the pulse logo Connecting everything
03/31/04
Functional Design of BMC5676-Based 24-Port GE Switch With 2 x 10 GE Ports
BCM8703
BCM5674
BCM5695
2 x 10GE
®
®
, HiGig™, and StrataXGS™ are trademarks of
BCM5464
BCM5695
12 x GE
O V E R V I E W
BCM5676
across 44 inches of FR4, connectors, and backplanes. SerDes technology
also enables the use of inexpensive cables for stacking applications.
Superior Performance
The BCM5676 delivers wirespeed switching performance across all of
the ports simultaneously. The effective bandwidth of each HiGig+™
interface is 24 Gbps (12 Gbps, full-duplex). The BCM5676 switch fabric
offers a backplane capacity of up to 96 Gbps and can interconnect with
other StrataXGS components for switch fabric of up to 750 Gbits. It
introduces very low switching latency, enabling the high-quality
transmission of voice, video, and data traffic.
Flexible Management
The BCM5676 HiGig+ switch links to a host CPU through a PCI bus at
speeds of up to 66 MHz. Bus mastering and advanced DMA are
supported in hardware for the efficient exchange of packet data between
CPU memory and the BCM5676 switch.
The BCM5676 switch can also work without host CPU support, using an
I
forwarding tables.
2
C interface and external microcontroller to initialize chip registers and
BCM5464
BCM5695
12 x GE
PCI
SDRAM
CPU
FLASH
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com