BCM56162B0KFSBG

Overview

The Broadcom BCM56162B0KFSBG is a System-on-a-Chip (SoC) Ethernet switch controller designed for enterprise edge applications. It integrates an ARM Cortex-A9 processor running at 1.25 GHz, a 2.0 MB packet buffer, and sixteen embedded copper Gigabit PHYs. The device provides twenty-four GbE ports, with eight supporting multirate speeds of 2.5 Gbps. It includes four high-speed uplink or stacking ports configurable as XFI, HiGig, HGd, or 40GbE. Manufactured using low-power 28 nm CMOS technology, the component operates within a 29 mm x 29 mm BGA package.

Feature Summary

• Integrates sixteen embedded copper Gigabit PHYs alongside a 1.25 GHz ARM Cortex-A9 processor.
• Supports IEEE 802.11ac Wave2 data rates on eight dedicated ports for access point connectivity.
• Features intelligent memory management optimized for handling bursty data traffic patterns.
• Provides advanced security capabilities including enhanced Denial of Service attack statistics gathering.

Applications

• Light L3-managed wiring closet switches for enterprise environments
• MTU/MDU switches for service provider networks
• Cost-sensitive edge access platforms requiring high integration

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with required DDR3 memory interfaces and USB 2.0 peripherals. Confirm that the selected variant matches the intended port configuration requirements for your design.

Selection Notes

Select this component when designing systems requiring integrated copper PHYs to reduce board space. Consider its suitability for applications needing 2.5 Gbps support for Wi-Fi access points. Evaluate the 28 nm process power consumption against system thermal constraints.

Part Context

This part belongs to the Broadcom BCM56160 family, which targets entry-level edge access applications. It builds upon the successful BCM56150 architecture by adding priority flow control and expanded VLAN-based counters. The family supports seamless stacking via the HiGig protocol.

Replacement Considerations

The BCM56160 serves as the base model without integrated PHYs. The BCM56161 offers similar specifications but lacks the embedded copper PHYs found in the BCM56162. Verify pinout and software compatibility before substituting these variants.

FAQ

What is the maximum speed supported by the multirate ports?

Eight of the twenty-four GbE ports support multirate speeds up to 2.5 Gbps, compliant with IEEE 802.11ac Wave2 standards.

How does the device handle network time synchronization?

It supports IEEE-1588 for industrial Ethernet applications and Synchronous Ethernet to provide timing accuracy for delay-sensitive voice and video traffic.

What is the capacity of the packet buffer?

The device features a fully integrated 2 MB packet buffer, which can provide 4 MB when used in a cascaded 48-port configuration.