SP233EET-L/TR

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The SP233EET-L/TR (Ethernet Autonegotiation Transceiver) is an integrated circuit developed by Silicon Laboratories incorporated in May 2013. It is part of the SiTime family of products, which also includes the SP232E, SP233FL, and SP233FL-L/TR devices and serves as a cost-effective, low-power version of the Ethernet transceiver.

The SP233EET-L/TR is a single, low-power transceiver that supports all of the physical layer, data link layer, and media access control (MAC) layer functions necessary to enable Ethernet communication. In addition, the transceiver incorporates the mechanism necessary to implement Ethernet autonegotiation. The SP233EET-L/TR is designed to operate from a single 3.3V supply, making it an ideal solution for communication interface applications such as industrial automation, medical imaging, and embedded networking.

Application Field

The SP233EET-L/TR device is ideally suited for low-power, low-cost applications that require a cost-effective Ethernet communication solution. It can be used in a variety of applications, including:

• Industrial automation, including control, monitoring, and supervisory systems, as well as remote operation of factory equipment.
• Medical imaging, including high-resolution digital X-ray and ultrasound.
• Embedded networking, including consumer electronics, digital home appliances, smart grid, and digital signage.
• Data acquisition and control systems.

Working Principle

The SP233EET-L/TR is a single transceiver that supports all of the physical layer, MAC and data link layer functions necessary to enable Ethernet communication. The transceiver is configured using serial bus interface registers, and can operate in either the half- or full-duplex mode. To implement Ethernet autonegotiation, it incorporates a mechanism to detect the existing link partner type, speed, and duplex settings.

The SP233EET-L/TR is an integrated device that has been optimized to reduce power consumption while allowing the flexibility to tailor the system performance to the application requirements. The transceiver has integrated low-power circuits that can automatically turn off nonessential portions of the IC to reduce power dissipation. Furthermore, the device has a programmable interface that allows for the selection of various transmission parameters such as line speed, line coding, and data rate.

The transceiver\'s flexibility allows for a broad range of clock frequencies and data rates. The most common data rates supported by the device are 10Mbps, 100Mbps, and 1000Mbps. The device also supports half-duplex and full-duplex transmission modes; however, auto-negotiation is only available for full-duplex links.

The SP233EET-L/TR contains integrated logic for media access control (MAC) layer functions, as well as an on-chip MAC address. The MAC layer includes address filtering, retransmission, and collision detection. The transceiver also contains a number of loopback functions that allow the user to test the links by looping back packets or echoing the receive data.

The SP233EET-L/TR includes both analog and digital interfaces, allowing the transceiver to be used with both legacy and newer Ethernet networks. The analog interface supports both AUI and MII-compliant packet formats, while the digital interface supports the MDIO (Management Data Input/Output) bus for configuring the device. The transceiver provides four transmit and four receive differential pins and an external reference clock input.

In summary, the SP233EET-L/TR is an integrated Ethernet transceiver that enables cost-effective communication for industrial automation, medical imaging, and embedded networking applications. The device is optimized for low-power operation, and supports all of the physical layer, MAC layer, and data link layer functions necessary to enable Ethernet communication.

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