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ST802RT1B Fiches technique(PDF) 1 Page - STMicroelectronics |
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ST802RT1B Fiches technique(HTML) 1 Page - STMicroelectronics |
1 / 58 page February 2010 Doc ID 17049 Rev 1 1/58 58 ST802RT1A ST802RT1B 10/100 real-time Ethernet 3.3 V transceiver Features ■ IEEE802.3 10Base-T and IEEE802.3u 100Base-TX, 100Base-FX (ST802RT1B only) transceiver ■ Support for IEEE802.3x flow control ■ Provides full-duplex operation in both 100 Mbps and 10 Mbps modes ■ Register bit strap during HW reset ■ Auto MDI-X for 10/100 Mb/s ■ Auto-negotiation ■ Provides loop-back mode for diagnostics ■ Programmable LED display for operating mode and functionality signaling ■ MII / RMII interface ■ MDC / MDIO serial management interface ■ Optimized deterministic latency for real-time Ethernet operation ■ Supports external transformer with turn ratio 1.414:1 on Tx/Rx side ■ Self-termination transceiver for external components and power saving ■ Operation from single 3.3 V supply ■ High ESD tolerance ■ 48-pin LQFP 7 x 7 package ■ Extended temp. range: -40 °C to +105 °C ■ Power dissipation < 315 mW (typ) Applications ■ Industrial control ■ Factory automation ■ High-end peripherals ■ Building automation ■ Telecom infrastructure Description The ST802RT1x is a high-performance fast Ethernet physical layer interface for 10Base-T, 100Base-TX and 100Base-FX applications. It is designed using advanced CMOS technology to provide MII and RMII interfaces for easy attachment to 10/100 media access controllers (MAC). The ST802RT1x supports the 100Base- TX of IEEE802.3u and 10Base-T of IEEE802.3i and 100Base FX of IEEE 802.3u (B version only). The ST802RT1x supports both half-duplex and full-duplex operation at 10 and 100 Mbps operation. Its operating mode can be set using auto-negotiation, parallel detection or manual control. It allows for the support of auto- negotiation functions for speed and duplex detection. The automatic MDI / MDIX feature compensates for the use of a crossover cable. With auto MDIX, the ST802RT1x automatically detects what is on the other end of the network cable and switches the TX & RX pin functionality accordingly. LQFP48 Table 1. Device summary Order codes Temperature range Package ST802RT1AFR - 40 to 105 °C LQFP48 ST802RT1BFR - 40 to 105 °C LQFP48 www.st.com |
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Description similaire - ST802RT1B |
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