RTL8251C(L)数据手册Realtek中文资料规格书

描述 Description

The Realtek RTL8251C(L) is a highly integrated Ethernet transceiver that complies with 10Base-T, 100Base-TX, and 1000Base-T IEEE 802.3 standards. It provides all the necessary physical layer functions to transmit and receive Ethernet packets over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable.
The RTL8251C(L) uses state-of-the-art DSP technology and an Analog Front End (AFE) to enable high-speed data transmission and reception over UTP cable. Functions such as Crossover Detection & Auto-Correction, polarity correction, adaptive equalization, cross-talk cancellation, echo cancellation, timing recovery, and error correction are implemented in the RTL8251C(L) to provide robust transmission and reception capabilities at 10Mbps, 100Mbps, or 1000Mbps.
Data transfer between MAC and PHY is via the Reduced Gigabit Media Independent Interface (RGMII) for 1000Base-T, 10Base-T, and 100Base-TX.

特性 Features

1000Base-T IEEE 802.3ab Compliant
100Base-TX IEEE 802.3u Compliant
10Base-T IEEE 802.3 Compliant
IEEE 802.3 Compliant RGMII
Supports Auto-Negotiation
Supports Parallel Detection
Crossover Detection & Auto-Correction
Automatic polarity correction
Transmit wave-shaping
DSP processing
Internal hybrids for 1000Base-T
Baseline Wander Correction
Supports half/full duplex operation
Transmission rate up to 1Gbps over industry standard CAT.5 UTP cable with BER less than 10-10 in 1000Base-T
The design transceiver capability target is up to 120m for CAT.5 cable in 1000Base-T
Supports 3.3V or 2.5V signaling for RGMII
Supports 25MHz external crystal or OSC
Provides 125MHz clock source for MAC
Supports Interrupt function
Network Status LEDs

The RTL8251C provides 5 network status LEDs
The RTL8251CL provides 2 network status LEDs
Supports Link Down power saving
Built-in Switching regulator
64-pin QFN (RTL8251C)
48-pin LQFP (RTL8251CL)
0.11µm process with very low power consumption