TC3097F-8

The TC3097F-8 Lite end multiport repeater interface controller with on chip TP filter (LEMRIC-OCF) may be used to implement an IEEE 802.3 multiport repeater unitIt fully satisfies the IEEE 802.3 repeater specification including the functions defined by the repeater, segment partition and jabber lockup protection state machines. Each LEMRIC-OCF can connect up to 9 cable segments via its network interface ports. One port is fully attachment unit interface (AUI) compatible and is able to connect to an external Medium Attachment Unit (MAU) using the maximum length of AUI cable. The other 8 ports have integrated IOBASE-T transceivers. In addition, large repeater units may be constructed by cascading LEMRIC-OCFs together over the Inter-LEMRIC-OCF bus. The LEMRIC-OCF has an on-chip phase-locked-loop (PLL) for Manchester data decoding, a Manchester encoder, and an elasticity buffer for preamble regeneration. In addition, it provides direct LED display driver pins for per port LINK/RCV status, per port partition jabber status, global jam and jabber lockup status indications.

The features of TC3097F-8 can be summarized as (1)functionally conforms to IEEE 802.3, Section 9, specification; (2)9 network connection(ports) per chip including: 1 AUI PORT with fully compatible and drive capability(50m AUI cable), 8 TP PORT with fully compatible and drive capability(100m TP cable); (3)cascadable for large multiple LEMRIC-OCF hub applications; (4)on-chip elasticity buffer, manchester encoder and decoder; (5)separate partition state machine for each port; (6)embeded LED output driver for per port partition status, per port link/receive status(TP port), global jam status, and global jabber status. No extemal glue logic require; (7)embedded active 10BASE-T filter and need only one simple transformer for isolation for every TP port; (8)embedded predistortion function for SMHZ signals; (9)build in power reset circuit, no extra glue logic required; (10)crystal/oscillator optional applicable; (11)manchester code violation detection and reporting; (12)support MAU Jabber Lockup Protection function, support auto partition/reconnection function to isolate a faulty segment's collision activity; (13)fully integrated link test logic with enable/disable option, conforming to the 10BASE-T standard; (14)fully integrated polarity detect/correct logic with enable/disable option for per TP port; (15)CMOS device feature high integration with a single +5V supply; (16)100-pin QFP package.

The absolute maximum ratings of TC3097F-8 are (1)supply voltage (VCC): 4.75V to 5.25V; (2)DC input voltage (VIN): -0.5V to VCC+0.5V; (3)DC output voltage (VOUT): -0.5V to VCC+0.5V; (4)ambient temperature under bias: 0°C to 70°C; (5)storage temperature range (TSTG): -40°C to 125°C; (6)operating temperature range: 0°C to 70°C; (7)power dissipation (PD): UTD.