Overview
The SJA1105ELY is a 5-port automotive Ethernet switch produced by NXP USA Inc. This component is designed to provide a flexible and cost-optimized solution for in-vehicle connectivity, supporting various automotive applications such as gateway systems, body domain controllers, and interconnecting multiple Electronic Control Units (ECUs) in a daisy chain configuration. The SJA1105ELY is IEEE 802.3-compliant and supports Audio Video Bridging (AVB) to fully leverage infotainment and advanced driver assistance systems.
Key Specifications
| Specification | Details |
|---|---|
| Number of Ports | 5 |
| Port Configuration | Individually configurable for MII, RMII, and RGMII modes |
| Speed | 10 Mbps, 100 Mbps, 1000 Mbps |
| Package | 159-LFBGA (12 mm x 12 mm) |
| Operating Temperature | -40°C to +105°C (Automotive Grade 2) |
| Core Voltage | 1.2 V |
| I/O Supply Voltage | Selectable (e.g., 3.3 V, 2.5 V) |
| Interface | SPI interface |
Key Features
- Store and forward architecture
- Ingress rate-limiting on a per-port and per-priority basis for Unicast/Multicast and Broadcast traffic
- Frame replication and retagging of traffic
- Frame mirroring for enhanced diagnostics
- Hardware support for IEEE 802.1AS and IEEE 802.1Qav for AVB traffic support
- Ingress and egress timestamping per port
- Ten IEEE 802.1Qav credit-based shapers available
- Support for AVB SR Class A, Class B, and Class C traffic
- IEEE 1588v2 one-step sync forwarding in hardware
- IEEE 802.1X support for setting port reachability and disabling address learning
- Broadcast storm protection
- Statistics for dropped frames and buffer load
Applications
The SJA1105ELY is suitable for various automotive applications, including:
- Gateway systems
- Body domain controllers
- Interconnecting multiple ECUs in a daisy chain configuration
- Infotainment systems
- Advanced driver assistance systems (ADAS)
Q & A
- What is the SJA1105ELY?
The SJA1105ELY is a 5-port automotive Ethernet switch produced by NXP USA Inc.
- What are the key features of the SJA1105ELY?
Key features include store and forward architecture, ingress rate-limiting, frame replication, frame mirroring, and support for AVB and IEEE 802.1Qav.
- What are the operating temperatures for the SJA1105ELY?
The operating temperature range is -40°C to +105°C (Automotive Grade 2).
- What is the package type of the SJA1105ELY?
The component is packaged in a 159-LFBGA (12 mm x 12 mm).
- What speeds does the SJA1105ELY support?
The SJA1105ELY supports speeds of 10 Mbps, 100 Mbps, and 1000 Mbps.
- What interfaces does the SJA1105ELY support?
The component supports MII, RMII, and RGMII interfaces, as well as an SPI interface.
- What is the core voltage of the SJA1105ELY?
The core voltage is 1.2 V.
- Does the SJA1105ELY support AVB?
Yes, it supports Audio Video Bridging (AVB) and IEEE 802.1Qav for AVB traffic.
- What are some common applications of the SJA1105ELY?
Common applications include gateway systems, body domain controllers, and interconnecting multiple ECUs in a daisy chain configuration.
- Does the SJA1105ELY support Time-Triggered Ethernet (TTEthernet) and Time-Sensitive Networking (TSN)?
No, the SJA1105ELY does not support TTEthernet and TSN; for these features, the SJA1105TEL variant is required.
