Broadcom targets 50G PON gateways with Wi‑Fi 8 SoCs
Broadcom has introduced two new chips, the BCM68850 gateway SoC and the BCM55050 ONU SoC, designed to enable 50G Passive Optical Network (PON) fiber gateways for residential and commercial fiber-to-the-home (FTTH) infrastructure. These new SoCs support Wi-Fi 8, multi-gigabit speeds, and integrate AI capabilities for enhanced connectivity for applications like UHD streaming and AI workloads. The BCM68850 features a multicore Arm CPU and NPU for edge AI, while the BCM55050 has a dual-core processor and 50G network engine, with both supporting multiple PON standards for high throughput and low-latency broadband.
Key Takeaways
- BCM68850 is a 50G ITU-PON gateway SoC with a quad-core Brahma53 Arm CPU, Broadcom Neural Engine, and tri-band Wi‑Fi 8 support.
- BCM55050 is an ONU/ONT SoC with a dual-core Brahma53 processor at 1 GHz, a 50 Gbps network processor, and an integrated AI/ML NPU.
- Both chips support multiple PON standards, including 50G ITU-PON, XGS-PON, NG-PON2, 10G EPON, and GPON.
- BCM68850 adds LPDDR4/5/5x, PCIe 3.0, USB 3.0, secure boot, and Post-Quantum Cryptography support.
- Broadcom says the BCM68850 and BCM55050 are sampling to early access customers and partners.
Why It Matters
Broadcom is pushing fiber gateway silicon beyond the 8-10 Gbps residential tiers common today, aiming at 50G PON infrastructure for home gateways, ONTs/ONUs, and multi-gigabit CPE. The competitive angle is that both chips pair high-speed packet processing with AI engines: BCM68850 uses the Broadcom Neural Engine, while BCM55050 adds an integrated AI/ML NPU and independent processors for ONU tasks and traffic handling. The key signal to watch is whether any ISP or partner deployment details emerge beyond the current early-access sampling phase.
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