onsemi — NCN26000 Ethernet Transceiver | Futureelectronics NorthAmerica Site

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onsemi NCN26000 Ethernet Transceiver (PHY)

Geared for industrial multi-drop

The NCN26000 device by onsemi is an IEEE 802.3cg compliant Ethernet Transceiver (PHY) designed for industrial multi−drop Ethernet. It provides all physical layer functions needed to transmit and receive data over a single unshielded twisted−pair. The NCN26000 communicates to existing half−duplex 10 Mb/s capable Ethernet MAC controllers via a standard MII interface.

Features

Enhanced Noise Immunity Mode:
- ENI extends the noise immunity to values well above the IEEE T1S standard
- Allows the NCN26000 to withstand worst-case DPI and BCI immunity tests
- Significantly improves the network reach when enabled, almost 2X better than competition
- Unique to onsemi's 10BASE-T1S devices
Lowest Line Pin Capacitance:
- Best-in-class line pin capacitance allows for the highest number of nodes per segment.
- The NCN26000 supports up to 40 nodes on a 25-meter segment, well above the IEEE minimum standard
- Lowers cabling, connector, and installation costs
Two Configurable Digital Outputs that can Drive Low Current LEDs:
- Supports systems where up to two LEDs can provide status indicators

Collision Detection Masking:
- Masking detected collisions allows operation in noisy conditions
- Prevents false collision detection in high-noise environments
- When used in conjunction with ENI, the NCNS26000 has unparalleled noise tolerance
PLCA Precedence Mode:
- Lower PLCA ID's get precedence over higher ones
- Provides arbitration similar to CAN: The Coordinator (i.e., the head node) sends a new beacon once any station transmits
- Unique to NCN26000
Physical Layer collision avoidance PLCA:
- Allows higher throughput in multi-drop topologies
Supports IEEE802.3 CSMA/CD Collision Detection:
- PLCA mode will default to CSMA/CD collision detection, if needed

Applications

Industrial Automation
Home / Building Control
Security and Field Instrumentation
EV-Charging

End Products

Programmable Logic Controllers (PLC)
Distributed Control Systems (DCS)
Motor Starters
Contactors
Pilot Devices
HMI
Autonomous Mobile Robots
Servers
Intelligent Sensors and Lighting
Control Panels

Evaluation Board - NCN26000XMNEVB

The NCN26000XMNEVB is a PCB design intended to enable customers to access onsemi’s NCN26000 10BASE-T1S PHY device with MII. This board allows connection to third-party MCU evaluation boards supporting a Clause 4 compliant MII interface.

Additionally, it includes a USB-C connector, facilitating connection to any Linux or Windows PC. This enables PCs to join a 10BASE-T1S multidrop network. Furthermore, it can be utilized for monitoring traffic on the multi-drop segment by running Wireshark on the PC.