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 autonegotiation 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.
Not for new projects
ST802RT1 - 10/100 Ethernet Transceiver -
48-pin LQFP 7 x 7 package
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.
Not for new projects
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 100Mbps 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)
Not for new projects
Manual: http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATA_BRIEF/CD00216985.pdf
Evaluation Board: STEVAL-PCC010V1 - ST802RT1 Tx mode demonstration board + STM32F107 add-on board
Recommended Transformers
ST802RT1 needs to have turn ratio of 1.414:1
Examples for RJ45 with integrated transformers
· HALO electronics, www.haloelectronics.com
· HFJ11-2477E-L12RL
· TG110-S177N2RL (Transformer only)
· Pulse, www.pulseeng.com
· J00-0086NL
· H1300NL (Transformer only)
· EPCOS, www.epcos.com
· B78477P1001A314
· Yuan Dean Scientific Co. Ltd, www.yds.com.tw
· 49F-12171GYDXNL
