Bcm89890 ((full)) May 2026

Broadcom BCM89890 is a multigigabit automotive Ethernet Physical Layer (PHY) transceiver specifically designed for high-bandwidth, secure in-vehicle networking. It was notable for being the industry's first PHY to comply with the IEEE 802.3ch standard for automotive multigigabit Ethernet. Key Technical Specifications

Operating at 125°C ambient requires careful thermal vias under the exposed pad. The datasheet specifies a maximum junction temperature of 150°C. Use a 2x2 or 3x3 array of thermal vias connected to a ground plane. bcm89890

Interfaces

: Optimized with high-speed PCIe and XFI interfaces for seamless connection to host SoCs or switch ICs [5.16]. Key Automotive Applications bcm89890

BCM89890 vs. Other Automotive PHYs

Telematics & Infotainment:

Supporting 4K displays and rear-seat entertainment systems. bcm89890