BCM5345KPB Broadcom, BCM5345KPB Datasheet - Page 2

• Manufacturer Part Number: BCM5345KPB
• Manufacturer: Broadcom

Specifications of BCM5345KPB

• Lead Free Status / RoHS Status: Not Compliant

The Broadcom BCM5345 device is a highly integrated solution
providing connectivity for 25 ports of Gigabit Ethernet. It combines all
the functions of a high-speed switch system, including packet buffer,
media access controllers, address management, and a nonblocking
switch fabric as well as a Microcontroller interface into a single 0.13 µm
CMOS device. It complies with IEEE 802.3, 802.3u, 802.3ab, and
802.3x specifications, including the MAC control, pause frame, and
auto-negotiation subsections, providing compatibility with all industry-
standard Ethernet, Fast Ethernet, and Gigabit Ethernet devices.
The BCM5345 is ideal for applications such as Gigabit Ethernet
workgroup switches, desktop switches, and data center switches. While
configurations of 24 Gigabit Ethernet ports can be achieved with only
one switch device, configurations of up to 48 ports can be built using
multiple BCM5345 devices with aggregated Gigabit Ethernet links
between them.
Broadcom
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
© 2003 by BROADCOM CORPORATION. All rights reserved.
5345-PB01-R
®
, the pulse logo, and Connecting everything
09/26/03
Parallel
GMAC
Serial
G-Port
to
Shared Buffer
®
G MAC
Parallel
Serial
G-Port
to
®
are trademarks of Broadcom Corporation and/
G MAC
G-Port
Queueing
Manager
Buffer
Output
O V E R V I E W
Manager
Port
Counters
MIB
The BCM5345 supports 25 Gigabit Ethernet ports in a single device with
all ports in wirespeed operation. It offers 24 ports of RGMII (802.3ab,
1000BASE-T) interfaces with full-duplex operation at Gigabit speed and
full-duplex or half-duplex operation at 10/100 Mbps speed (using
10BASE-T/100BASE-T). The BCM5345 also offers one uplink port
with a GMII interface for light management or cascading purposes. It
forwards Ethernet frames with lengths between 64 bytes and 9216 bytes
based on L2 MAC address lookups in the 8k entry on-chip MAC address
table with automatic learning and aging support. The device supports
four levels of priority that can be either assigned from the 802.1p user
priority bits or the TOS field for Differentiated Services. The device also
supports MAC access control (802.1x) as well as port trunking
(802.3ad). In addition, individual ports can be rate controlled in 16 steps
down to 64 Kbps.
The BCM5345 device offers a Microcontroller interface to support
lightly managed applications. All the required counters and frame-
trapping mechanisms are incorporated into the device.
Management
Management
L2 MAC
VLAN
Table
Table
Table
Light
To Microcontroller
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com