DP83867CRRGZR

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Interface - Controllers

The DP83867CRRGZR is a physical layer transceiver that is part of the National Semiconductor family of integrated circuits. It is a single-chip, low-power device that provides an Ethernet media access controller (MAC) and physical layer transceivers to meet various Ethernet physical layer requirements. In addition to its Ethernet controller, the DP83867CRRGZR also has other powerful features which make it particularly suited for a variety of applications.

Application Field and Working Principle

The DP83867CRRGZR is ideally suited for applications such as automotive Ethernet, aPoE (power over Ethernet), NB-IoT and smart sensors. As for automotive Ethernet, the DP83867CRRGZR offers an integrated high-speed Ethernet connection that can be used to reliably connect cars, buses and trucks to a computer network or the Internet. In addition, the device offers multiple safety features, including cable integrity detection and open circuit detection, enabling reliable and resilient communication.

The DP83867CRRGZR also offers PoE support, making it a great choice for powering remote devices over an Ethernet cable. With the integrated aPoE feature, the DP83867CRRGZR can identify and supply power to connected devices even over lengthy distances. It also supports low-power standby modes and is designed to operate over a temperature range of -40 to 85 degrees Celsius.

The DP83867CRRGZR offers additional features such as integrated NB-IoT support, enabling it to provide secure, reliable connection capabilities to support low-power wide area networks, such as those used in smart metering or asset tracking. Additionally, with integrated smart sensors, the DP83867CRRGZR is ideal for applications such as object detection, industrial automation and LED lighting control.

In terms of its working principle, the DP83867CRRGZR supports the IEEE 802.3 standard Ethernet media access controller (MAC) and physical layer transceivers. It supports 10 Mbit/s (half-duplex) and 100 Mbit/s (full-duplex) Ethernet communications and offers integrated MDIX auto-crossover support. It provides controlled transition from power down to normal mode and supports wake-on-LAN and Jumbo frames. It also supports a variety of Ethernet standards such as IEEE 802.3 CSI and IEEE 802.1x.

The DP83867CRRGZR also has an integrated processor as well as an Ethernet MAC controller with a built-in automatic MDI/MDI-X crossover. It provides an embedded buffered memory that allows packet buffering and packet forwarding. This memory can be used to enable features such as frame filtering, buffer management, cable misconnection detection and protection, and auto-negotiation.

In addition to its features, the DP83867CRRGZR also provides an on-chip 10/100 Mbit/s Ethernet PHY that is connected to a separate bus. The bus is controlled by the host processor and supports multiple protocols such as SPI, I2C, UART and USB. This enables the Ethernet PHY to be integrated into host controllers and systems, making it a great choice for Ethernet-based applications.

In conclusion, the DP83867CRRGZR is a powerful, versatile and reliable device for applications ranging from automotive Ethernet to low-power wide area networks. Its integrated features make it an ideal choice for a variety of applications, offering secure, reliable Ethernet connection capabilities for a wide range of applications.

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