ST802RT1BFR Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

ST802RT1BFR

10/100 real-time Ethernet 3.3 V transceiver

STMicroelectronics 

ST802RT1A, ST802RT1B

5

Pin description

Pin description

Table 2. Pin description of the ST802RT1x

Pin n°

ST802RT1x

Name

Type

Description

1

TX_CLK/LPBK_EN O, S, PD MII transmit clock

2

TX_EN

I, PD

MII transmit enable

3

GNDA

Ground Analog ground

4

VCCA

Supply Analog power supply

5

TXD0

6

TXD1

I

Transmit data (MII/RMII)

I

Transmit data (MII/RMII)

7

TXD2/SCLK

I

Transmit data (MII), RMII clock (50 Mhz)

8

TXD3/MII_CFG1

I, S, PD Transmit data (MII) / multi-function pin

9

PWRDWN/MDINT I, PU, OD Power-down/management data interrupt

10

RESERVED

I, PD

To be set to digital ground

11

RESERVED

I, PD

To be set to digital ground

12

GND

Ground Digital ground

13

VCCA

Supply Analog power supply

14

RXN

I, O

Differential receive inputs

15

RXP

I, O

Differential receive inputs

16

GNDA

Ground Analog ground

17

TXP

I, O

Differential transmit outputs

18

TXN

I, O

Differential transmit outputs

19

GNDA

Ground Analog ground

20

GNDA

Ground Analog ground

21

IREF

I/O

Reference resistor/ DC regulator output (bias resistor)

22

VCCA

Supply Analog power supply

23

GNDA

Ground Analog ground

24

VCCA

Supply Analog power supply

RESERVED

25

SDP

-

Not used in the ST802RT1A

I

Positive signal detect for 100Base-FX operation (ST802RT1B

only)

26

LED_ACT/AN_1

O, S, PU Activity/full-duplex/collision led

27

LED_SPEED/AN_0 O, S, PU Speed LED

28

LED_LINK/AN_EN O, S, PU Link LED

29

RESET

I

Reset (active-low)

30

MDIO

I/O, PU Management data input/output

31

MDC

I

Management data clock

Doc ID 17049 Rev 1

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