ST802RT1AFR datasheet(1/58 Pages) STMICROELECTRONICS

部件名	ST802RT1AFR

功能描述	10/100 real-time Ethernet 3.3 V transceiver

PDF	58 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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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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制造商	部件名	数据表	功能描述
STMicroelectronics	ST802RT1B	596Kb / 58P	10/100 real-time Ethernet 3.3 V transceiver 02-Feb-2010

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