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The BCM56540B0KFSBLG is a multi-layer Ethernet switch integrated circuit manufactured by Broadcom Limited. It belongs to the BCM56540 chipset family and supports IEEE 1588 Precision Time Protocol for network synchronization. The component is classified under Communication & Networking ICs within the Ethernet Switches subcategory. Official documentation identifies this specific part number as an End-of-Life (EOL) product, with discontinuation notifications recorded in September 2023.
This component is officially discontinued and no longer in active production. Verification of availability should focus on existing stock from authorized distributors or secondary market suppliers. Buyers must review Product Change Notifications (PCN) and End-of-Life notices issued by Broadcom to confirm final shipment dates and any applicable obsolescence warnings before procurement.
Designers replacing this obsolete component should evaluate current Broadcom Ethernet switch families that offer comparable port densities and IEEE 1588 support. Compatibility checks must include pinout alignment, package dimensions, and software driver support for the new replacement silicon to ensure seamless integration into existing hardware designs.
The BCM56540 series represents Broadcom's portfolio of high-performance Ethernet switches designed for carrier access and aggregation networks. This specific variant integrates switching fabric capabilities with timing features. The suffix indicates specific packaging and temperature grade configurations typical of Broadcom's commercial and industrial semiconductor offerings.