Used in devices like the optoLAN BCM89890 for digital optical transmission during EMC functional tests.
Modern automotive topologies use zonal architectures, where regional zones collect localized data and pass it to a central brain. The BCM89890 provides the multi-gigabit backbone connecting these main ECUs together.
Technical Report: BCM89890 Multigigabit Automotive Ethernet PHY
The is the world’s first IEEE 802.3ch compliant multigigabit Automotive Ethernet physical layer (PHY) transceiver chip . Designed specifically to handle the immense data requirements of modern connected vehicles, this highly specialized chip supports data transfer speeds of 2.5 Gbps, 5 Gbps, and 10 Gbps (10G/5G/2.5GBASE-T1) over a single shielded twisted-pair (STP) cable. Produced by Broadcom Inc., the BCM89890 represents a massive technological leap forward from older 100 Mbps and 1 Gbps automotive standards. It enables the multi-gigabit backbones required for autonomous driving, advanced driver-assistance systems (ADAS), and centralized zonal E/E (electrical/electronic) vehicle architectures. Core Specifications & Key Features
The architecture of the BCM89890 relies heavily on Broadcom’s digital signal processing (DSP) expertise. Vehicles present a challenging environment for high-frequency data transmission due to extreme temperature swings, mechanical vibrations, and dense electromagnetic interference (EMI). 1. Signal Integrity over Single-Pair Copper bcm89890
Features low-power consumption and various low-power modes to optimize vehicle energy use. Major Applications
The Broadcom BCM89890 is more than just a high-speed transceiver; it is a foundational technology for the next generation of vehicles. By being the world's first to bring the IEEE 802.3ch standard to market, Broadcom has provided automakers with a path to solve the critical bandwidth bottleneck facing modern vehicle architectures.
qualified, ensuring reliability under extreme temperatures and the mechanical stresses of a vehicle environment. Key Features for Automotive Design Time-Sensitive Networking (TSN) : Includes PHY-level timestamping for
: Fully compliant with the IEEE 802.3ch standard, supporting data rates of 10G, 5G, and 2.5GBASE-T1 over a single pair of shielded twisted-pair (STP) cables. Used in devices like the optoLAN BCM89890 for
use the BCM89890 in media converters for point-to-point data transmission without delay or packet modification. It has also been demonstrated in evaluation boards using specialized FoxNet GII
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.
The Backbone of Future Mobility: Exploring the Broadcom BCM89890 Multigigabit Automotive Ethernet PHY Go to product viewer dialog for this item.
: Facilitates rapid V2X (Vehicle-to-Everything) communications for smart mobility. Development and Testing Tools Development and Testing Tools
, meeting stringent automotive requirements for electromagnetic compatibility (EMC) and extreme temperature operation. Primary Applications The chip is a critical component for Software-Defined Vehicles (SDVs) , where high-speed backbone communication is essential for: Autonomous Driving (ADAS):
The capabilities of the BCM89890 have been validated in real-world demonstrations, proving its readiness for production vehicles.
More detailed technical documentation and drivers can be requested through the Broadcom Customer Support Portal or by contacting a local Broadcom sales representative. for this chip or compare it to other Broadcom automotive PHYs like the BCM89880? BCM89890 | Multigigabit Automotive Ethernet PHY with MACsec