The is a pioneering multigigabit automotive Ethernet transceiver designed to meet the extreme bandwidth and security demands of next-generation vehicles. As the industry's first IEEE 802.3ch compliant physical layer (PHY) device, it supports data rates of 2.5G, 5G, and 10G over a single pair of shielded twisted-pair (STP) cables, effectively bringing data center-level speeds to the automotive environment. Key Technical Specifications
In the high-stakes world of automotive engineering, a new hero was born: the . This wasn't just any silicon chip; it was the world’s first IEEE 802.3ch compliant multigigabit Ethernet transceiver, a marvel of modern connectivity designed to be the central nervous system of the next generation of vehicles. The Birth of a Speedster bcm89890
Powers 4K displays and rear-seat entertainment systems. This wasn't just any silicon chip; it was
Disclaimer: This article is for informational purposes. Specifications and features are based on publicly available data and Broadcom documentation as of the date of publication. Engineers should perform their own validation against the official datasheet. Specifications and features are based on publicly available
Unlike traditional Ethernet that requires four pairs of wires (like the cables in your home office), the BCM89890 transmits data at 1 Gbps over a . This reduction in cabling weight and bulk is a primary driver for its adoption in the automotive industry.
As vehicles transition to 48V architectures and manufacturers obsess over range (especially in EVs), the power draw of every component matters. The BCM89890 features multiple low-power states, including sleep modes that draw negligible current. This is vital for "always-on" features like remote start or security monitoring that shouldn't drain the 12V battery.
