LAN9500I-ABZJ-TR

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The LAN9500I-ABZJ-TR is a USB to 10/100 Ethernet controller. The device is a fully integrated, single-chip solution that enables networking capabilities over USB ports. It is useful for adding networking connections to a variety of consumer devices, such as 3D TVs, gaming consoles, and home media systems. It is also used in embedded system applications, such as industrial control systems and medical devices.

The LAN9500I-ABZJ-TR is designed to provide low-power, high-performance Ethernet data transmission over USB. It has a built-in dual Ethernet PHY, 8 Kbytes of SRAM for packet buffering, and supports the USB 2.0 protocol. The device supports 10/100 Mbps data rates with Auto-Negotiation and Auto-MDIX and also features support for USB power management, link integrity monitoring, and IEEE 802.1Q VLAN tagging.

The device is easy to integrate into most PC and consumer electronics designs. It is available in a 14 mm x 14 mm x 2 mm LQFP package and operates over the industrial temperature range of -40°C to 85°C. The chip is RoHS compliant, making it a good choice for green applications.

The LAN9500I-ABZJ-TR operates in two stages. First, the device connects to a host USB port and is then configured using the USB control commands described in the USB 2.0 Specification. Once the device is configured, the microcontroller begins polling the PHYs, collecting the statistics and performing the link integrity checks. The microcontroller also scans the status of the USB signaling lines to determine if there has been a host-initiated suspend or resume request. If there is a suspend request, the microcontroller will power down the PHYs and proceed to enter suspend mode. If there is a resume request, the microcontroller will power up the PHYs and proceed to exit suspend mode. The microcontroller also monitors the USB packet protocol, implementing the DMA engine for transmission and reception.

The LAN9500I-ABZJ-TR is ideal for applications that require high-speed USB connectivity. The device supports both full and low-speed USB connections, allowing it to be used in a variety of consumer and industrial applications. The device is also highly integrated, with its low power consumption and support for multiple protocols making it a great choice for embedded systems.

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