Overview
The SJA1105RELY is a 5-port automotive Ethernet switch produced by NXP USA Inc. This device is part of the SJA1105 family, which is designed to meet the stringent requirements of automotive networking. It is IEEE 802.3-compliant and supports various Ethernet modes, including MII, RMII, and RGMII. The SJA1105RELY is particularly suited for applications requiring high reliability, security, and functional safety, adhering to ISO 26262 standards through NXP's SafeAssure program.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Ports | 5 |
| Interface Modes | MII, RMII, RGMII |
| Operating Speeds | 10 Mbit/s, 100 Mbit/s, 1000 Mbit/s |
| Package Type | LFBGA159 (12 mm x 12 mm) |
| Core Voltage | 1.2 V |
| Ambient Operating Temperature | -40°C to +105°C |
| Compliance | IEEE 802.3, ISO 26262 |
| Additional Features | AVB, TSN, TTEthernet support; IEEE 802.1AS, IEEE 802.1Qav; Ingress and egress timestamping |
Key Features
- Store and forward architecture with individually configurable ports
- Support for Audio Video Bridging (AVB) and Time-Sensitive Networking (TSN)
- Time-Triggered Ethernet (TTEthernet) support in certain variants
- Ingress rate-limiting and frame replication/retagging
- Frame mirroring for enhanced diagnostics
- Hardware support for IEEE 802.1AS and IEEE 802.1Qav
- IEEE 1588v2 one-step sync forwarding in hardware
- Broadcast storm protection and statistics for dropped frames and buffer load
Applications
The SJA1105RELY is designed for various automotive applications, including:
- Gateway applications
- Body domain controllers
- Interconnecting multiple Electronic Control Units (ECUs) in a daisy chain configuration
- Infotainment and advanced driver assistance systems
Q & A
- What is the SJA1105RELY? The SJA1105RELY is a 5-port automotive Ethernet switch produced by NXP USA Inc.
- What Ethernet modes does it support? It supports MII, RMII, and RGMII modes.
- What are the operating speeds of the SJA1105RELY? It operates at 10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s.
- What is the package type of the SJA1105RELY? It comes in an LFBGA159 package (12 mm x 12 mm).
- What is the core voltage of the SJA1105RELY? The core voltage is 1.2 V.
- What is the ambient operating temperature range of the SJA1105RELY? It operates from -40°C to +105°C.
- Does the SJA1105RELY support AVB and TSN? Yes, it supports Audio Video Bridging (AVB) and Time-Sensitive Networking (TSN).
- What safety standards does the SJA1105RELY adhere to? It adheres to ISO 26262 standards through NXP's SafeAssure program.
- What are some key features of the SJA1105RELY? Key features include store and forward architecture, ingress rate-limiting, frame mirroring, and hardware support for IEEE 802.1AS and IEEE 802.1Qav.
- Where can the SJA1105RELY be used in automotive systems? It can be used in gateway applications, body domain controllers, and for interconnecting multiple ECUs.
