RTL8309N 查看數據表（PDF） - Realtek Semiconductor

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RTL8309N

SINGLE-CHIP 8-PORT 10/100MBPS ETHERNET SWITCH CONTROLLER

Realtek Semiconductor 

Pin Name

P6 LED

P7 LED

Pin No.

45

46

Type

I/OPD

I/OPD

Drive

(mA)

10

10

RTL8309N

Datasheet

Description

LED for Port6 status indication

LED for Port7 status indication

4.4.3. Miscellaneous Interface Pins

Pin Name

LDIND

SCL/MDC

SDA/MDIO

RESETB

XI

XO

IBREF

Pin No.

37

34

35

36

52

51

54

Table 4. Miscellaneous Interface Pins

Type

Drive

Description

(mA)

I/OPU

I/OPU

Loop indication used by LED and buzzer, when loop

10

topology is happened.

4

I2C Interface Clock for EEPROM auto load when

power on, and after power on, this pin is MDC/MDIO

Interface Clock for access registers

I/OPU

IPU

AI

AO

AO

4

I2C Interface Data Input/Output for EEPROM auto

load when power on, and after power on, this pin is

MDC/MDIO Interface Data Input/Output for access

registers.

- System Pin Reset Input.

- 25MHz Crystal Clock Input.

The clock tolerance is ±50ppm.

When using an oscillator, this pin should be tied to

ground.

- 25MHz Crystal Clock Output Pin.

- Reference Resistor for PHY bandgap.

A 2.49KΩ (1%) resistor should be connected between

IBREF and GND.

4.4.4. Configuration Strapping Pins

Pin Name

Table 5. Configuration Strapping Pins

Pin No. Type Default Description

8-Port 10/100M Layer2 Switch Controller

2

Track ID:

Rev. 1.0

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