SJA1105ELY

Controllers Overview

The SJA1105ELY is an IEEE 802.3-compliant five-port automotive Ethernet switch manufactured by NXP Semiconductors. It supports individually configurable MII, RMII, and RGMII interfaces for 10/100/1000 Mbps operation. The device features a 128 kB frame buffer, 1024-entry MAC address learning table, and hardware support for Audio Video Bridging (AVB) standards including IEEE 802.1AS and 802.1Qav. It operates within an ambient temperature range of -40 °C to +105 °C and utilizes a 159-ball LFBGA package.

Controllers Feature Summary

• Supports store-and-forward switching architecture with per-port priority remapping and eight configurable egress queues.
• Provides hardware-based AVB traffic shaping via credit-based shapers and high-resolution timestamping for clock synchronization.
• Enables deterministic network behavior through ingress rate-limiting, broadcast storm protection, and VLAN tag manipulation.

Controllers Applications

• Gateway applications in automotive networks
• Body domain controllers
• Interconnecting multiple Electronic Control Units (ECUs)
• Infotainment systems leveraging AVB capabilities

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and qualification status. Ensure that the host processor interface voltage matches the required VDDIO_HOST level for SPI communication. Confirm compliance with AEC-Q100 Automotive Grade 2 requirements for the target operating environment.

Controllers Selection Notes

Select this component when a cost-optimized solution for automotive Ethernet is required without Time-Sensitive Networking (TSN) features. The SJA1105EL variant lacks TTEthernet and TSN support found in the TEL version. Ensure the design accommodates the LFBGA159 package footprint and provides adequate thermal dissipation for the specified junction temperature limits.

Controllers Part Context

The SJA1105 series includes variants such as the SJA1105TEL which adds Time-Sensitive Networking capabilities. The EL variant focuses on standard Ethernet and AVB functions. Other family members like the P, Q, R, and S series offer extended security features and additional interface options compared to the base EL model.

Controllers Replacement Considerations

SJA1105ELY serves as a direct replacement for earlier revisions of the SJA1105EL within the same pin-compatible family. Verify compatibility with existing board layouts and configuration tools when substituting across minor manufacturing revisions.