RTL8208B-LF/RTL8208BF-LF
Datasheet
2. Features
Supports 8-port integrated physical layer
and transceiver for 10Base-T and
100Base-TX
Supports Port-Pair Loopback mode (PP-
LPBK mode, RTL8208BF-LF only)
Supports two power reduction methods:
Up to 8 ports support 100Base-FX
(RTL8208BF-LF only)
Power saving mode (cable detection)
Power down mode
Reduced 100Base-FX (RTL8208BF-LF
only) interface (patented)
Power-on auto reset function eliminates the
need for external reset circuits
Robust baseline wander correction for
improved 100Base-TX performance
Crossover detection and auto correction
Polarity detection and Auto Correction
Flexible serial/scan LED display modes
Complies with IEEE 802.3/802.3u
IEEE 802.3u compliant auto negotiation
for 10/100Mbps control
Cable tester for diagnosing open/short
faults in attached cables
Hardware controlled Flow control
advertisement ability
128-pin QFP package
Supports RMII/SMII/SS-SMII interfaces
Very low power consumption
1.8V/3.3V power supply
0.18µm, CMOS technology
3. Applications
RTL8208B-LF
Octal PHY for Fast Ethernet switch with twisted pair interface
RTL8208BF-LF
Octal PHY for Fast Ethernet switch with twisted pair interface and fiber capability
Single-Chip Octal 10/100-TX/FX PHY Transceiver
2
Track ID: JATR-1076-21 Rev. 1.3
REALTEK [ Realtek Semiconductor Corp. ]
