SJA1105RELY

SJA1105RELY is an NXP (formerly Freescale) time‑sensitive networking (TSN) Ethernet switch IC. It’s a variant in the SJA1105 family designed for deterministic, low‑latency networks used in automotive and industrial environments.
Key points:
- Multiport TSN switch: typically five Ethernet ports with integrated switching and management features.
- TSN features: IEEE 802.1AS clock synchronization; 802.1Qbv (scheduled traffic), 802.1Qci (guarded forwarding), 802.1Qav (credit‑based shaping); VLANs and quality‑of‑service capabilities for deterministic traffic.
- Management: configurable via standard interfaces (e.g., MDIO/I2C/SPI) with vendor software stacks for setup, monitoring, and firmware updates.
- Applications: in‑vehicle networks, industrial automation, robotics, any use case requiring predictable latency and jitter control.
- Packaging/variant: “RELY” denotes the specific order code/package variant of the SJA1105 family.
If you need exact port counts, supported speeds, or the latest datasheet, I can locate the precise specs.

SJA1105RELY features (concise):
- 5-port Gigabit Ethernet switch (RJ45) designed for automotive/industrial TSN networks.
- Time-Sensitive Networking (TSN) support: IEEE 802.1Qbv (time-aware shaper), IEEE 802.1Qci (per-connection filtering/policing), and IEEE 802.1AS/IEEE 1588v2 clock synchronization with hardware timestamping.
- VLANs and robust QoS: 802.1Q tagging, multiple priority queues, strict/weighted scheduling, per-port prioritization.
- Deterministic performance: hardware-accelerated switching with low, predictable latency.
- Management interfaces: MDIO, SPI and I2C for host control; software/SDK support for configuration and remote management.
- Reliability for harsh environments: industrial/ automotive-grade with extended temperature range.
- Basic security/isolation features via VLANs and port-level controls.

Package type: BGA (ball-grid array). The SJA1105RELY is provided in a BGA package. For exact ball count, pitch, and land pattern, please refer to the SJA1105 datasheet.

- Pin count: 196-pin BGA (package pin count for SJA1105RELY)
- Function: Fully integrated 5-port Ethernet switch (10/100/1000BASE-T) with built-in switch fabric, MAC/PHY, and management interfaces (MDIO/I2C), supporting features like VLAN (802.1Q) and QoS for automotive/industrial networks.

Manufacturer: NXP Semiconductors.
What kind of company: A Dutch multinational semiconductor company that designs, manufactures, and markets integrated circuits and semiconductor solutions for automotive, industrial, and consumer electronics.

Application areas of SJA1105RELY:
- Automotive Ethernet TSN networks (ECU backbone, ADAS data, infotainment)
- Industrial automation and robotics (deterministic 1G/TSN Ethernet for control)
- Edge gateways and smart factory networks (industrial IoT, edge switching)
- Rugged, reliable networks for transportation/infrastructure deployments (automotive-grade environments)

There isn’t an exact cross‑reference for SJA1105RELY. It’s an NXP SJA1105 TSN Ethernet switch. Closest substitutes are other TSN-enabled switches from major vendors (e.g., Microchip KSZ9xxx series, Broadcom TSN switches) depending on required port count, speeds, VS/TSN features, and packaging. For an exact cross‑reference, consult NXP’s cross-reference tool or your distributor.