Product Summary

The RTL8309SC-LF is a 128-pin, ultra-low-power, high-performance 8-port Fast Ethernet single-chip switch with one extra MII port for specific applications. It integrates all the functions of a high-speed switch systemincluding SRAM for packet buffering, non-blocking switch fabric, address management, one general use MII interface, eight 10/100Base-TX transceivers, and nine Media Access Controllersinto a single 0.18μm CMOS device. The RTL8309SC-LF provides compatibility with all industry standard Ethernet and Fast Ethernet devices.

Features

RTL8309SC-LF features: (1)Integrates eight 10/100 transceivers and nine MAC units for 10Base-T and 100Base-TX ; (2)Embedded SRAM for packet storage ; (3)On-chip 1024-entry look-up table in direct mapping mode ; (4)Embedded 16-entry CAM for hash collision mapping ; (5)Provides read/write access to look-up table entries via SMI interface ; (6)Provides non-blocking wire speed reception and transmission ; (7)Flow control fully supported; (8)Support for 4 LEDs per-port in various combinations for comprehensive applications ; (9)Optional loop detection function with an LED to indicate the existence of a loop ; (10)LEDs blink upon reset for LED diagnostics ; (11)Flexible system configuration by strapping pins, EEPROM, or SMI interface ; (12)Optional crossover detection and auto correction for plug-and-play ; (13)Fully compliant with IEEE 802.3/802.3u. ; (14)Optional Broadcast Input/Output Drop flow control ; (15)Optional maximum packet length 1536/1552 Bytes ; (16)Optional 802.1P/Q tag insertion or removal on per-port basis(egress) ; (17)25MHz crystal input ; (18)0.18μm, CMOS technology ; (19)128-pin PQFP package ; (20)1.8V core voltage ; (21)Independent power options for 2.5V or 3.3V MII interface.

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