General Descriptions
Broadcom's BCM53154/BCM53156/BCM53158 is a family
of highly integrated Ethernet switches that are optimally
designed for cost-effective low-power applications in the
SMB, Enterprise, Service-Provider, SOHO, and Industrial-
Ethernet markets that rapidly transition to Gigabit-Ethernet
connectivity and beyond. The BCM53154/BCM53156/
BCM53158 is based on the industry-leading 28 nm
RoboSwitch™ architecture, also known as Robo 2. The
product line includes multiple models with 6 to 15 interfaces
that support 100M/1GE/2.5GE and 10GE of bandwidth. The
various models support Unmanaged, Web-Managed, and
Managed modes of operation. The BCM53154/BCM53156/
BCM53158 is designed for standalone low port-count
configurations, high port-count configurations with support
for cascading, and a Port-Extender configuration with
support for IEEE 802.1BR.
The BCM53154/BCM53156/BCM53158 allows customers
to design complete product platforms that target new costeffective
low-power applications demanding 1GE/10GE
connectivity. Among those, SMB switch with 10G uplinks,
Enterprise switches, routers and security appliances, next
generation Industrial Ethernet switches, and Service
Provider access equipment.
The BCM53154/BCM53156/BCM53158 is also designed to
support high-end applications that require advanced QoS,
flexible classification of traffic, sophisticated VLAN
manipulation, security features, packet synchronization for
time-sensitive networks, and more. The product line takes
advantage of a low-power integrated ARM Cortex-M7 CPU
to offer on-chip support for certain protocols, including
xSTP, LLDP, and IGMP as well as tools for monitoring and
troubleshooting. The product line is offered in Commercialgrade
as well as Industrial-grade temperature ranges.

Features
 ARM Cortex-M7 at up to 400 MHz.
 Operational modes: Unmanaged, Web-Managed, and
Managed.
 Up to 8×10/100/1000BASE-T ports with integrated
ultra-low-power GPHYs.
 Up to 1×QSGMII with integrated SerDes.
 Up to 2×10G XFI with KR support.
 Switch cascading.
 16K entry MAC address table.
 1K multicast group support.
 1 MB packet buffer.
 srTCM and trTCM meters (support color aware and
color blind modes).
 Eight CoS queues per port with priority flow-control.
 IEEE 802.1p, MAC, and DSCP packet classification.
 Per-queue and per-port shaper.
 4K VLANs (IEEE 802.1Q) with Virtual Switching
Instance (VSI) support.
 1K CFP rules support (up to 192b key).
 Mirroring and sFlow sampling.
 Loop detection.
 1K packets and bytes counters.
 16 LAG trunks (32 supported across cascaded
switches). Up to 32 ports in a LAG group.
 VLAN mapping and translation.
 Protection and security mechanisms: port
authentication (IEEE 802.1x), isolation groups, BUM
traffic metering, DOS filtering.
 IEEE 802.3az Energy Efficient Ethernet (EEE).
 IEEE 802.1BR standards-based port extender.
 1588 and time-sensitive networking (IEEE 802.1Qbv,
IEEE 802.1ASrev).
 Jumbo frame support: up to 9728 bytes.
 311-pin, 13×13 mm2 FBGA package (BCM53156/
BCM53158).
 425-pin, 19×19 mm2 FBGA package (BCM53154).
 JTAG support.
 Includes one UART and MDIO interface, seven I2C
interfaces, and 9 GPIOs (via the MFIO).