ST802RT1BFR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST802RT1BFR

10/100 real-time Ethernet 3.3 V transceiver

STMicroelectronics 

Pin description

ST802RT1A, ST802RT1B

Table 2. Pin description of the ST802RT1x (continued)

Pin n°

ST802RT1x

Name

Type

Description

32

OVDD

Supply IO ring power supply (3.3 V)

33

GND

Ground Analog ground

34

X2

O

Xtal out

35

X1

I

Xtal in (25 MHz)

36

DVDD

Supply Digital power (3.3 V)

37

RX_CLK

O

MII receive clock

38

RXDV/MII_CFG0

O, S, PD

Receive data valid (MII: RXDV, RMII: CRSDV) / multi-function

pin

39

CRS_TXD4

O

MII carrier sense / transmit data 4

40

RXER_RXD4

O

Receive error / receive data 4

41

DVDD

Supply Digital power (3.3 V)

42

RXD3/PHYADDR4 O, S, PD Receive data (MII)/Phy4

43

RXD2/PHYADDR3 O, S, PD Receive data (MII)/Phy3

44

RXD1/PHYADDR2 O, S, PD Receive data (MII/RMII)/Phy2

45

RXD0/PHYADDR1 O, S, PD Receive data (MII/RMII)/Phy1

46

COL/PHYADDR0 O, S, PU MII collision detection/Phy0

47

GND

Ground Ground

RESERVED

48

SDN

-

Not used in the ST802RT1A

I

Negative signal detect (100Base-FX only)

Table 3.

Abbreviations

Legend

I

O

I/O

S

OD

PD

PU

Description

Input

Output

Input/output

Strap option

Open drain

Pull-down

Pull-up

12/58

Doc ID 17049 Rev 1

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