RTL8309N Datasheet – Ethernet Switch Controller

Part Number : RTL8309N

Function : Single-Chip 8-Port 10/100Mbps Ethernet Switch Controller

Package : 64-pin QFN package

Manufacturers : Realtek Semiconductor

Image :

RTL8309N Realtek
Description :

The RTL8309N is an 8-port 10/100M Ethernet switch controller that integrates memory, eight MACs, and eight physical layer transceivers for 10Base-T and 100Base-TX operation into a single chip.

The RTL8309N supports 16 VLAN groups. These can be configured as port-based VLANs and/or 802.1Q tag-based VLANs. The RTL8309N also supports VLAN learning, with four Independent VLAN Learning (IVL) filtering databases.


RTL8309N pinout datasheet


1. 8-port switch controller with memory and transceiver for 10Base-T and 100Base-TX
2. Non-blocking wire-speed
3. Compatible with IEEE 802.3/802.3u
4. Built-in high efficiency SRAM for packet buffer, with 2K-entry lookup table
5. 2048 byte maximum packet length
6. Flow control fully supported
7. Half duplex: Back pressure flow control
8. Full duplex: IEEE 802.3x flow control

1. 8-port switch (10Base-T & 100Base-TX)


Official Homepage : http://www.realtek.com.tw/ ( RTL8309N )

RTL8309N Datasheet

RTL8309N pdf


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RTL8111G Datasheet – 10/100/1000M Ethernet Controller

Part Number : RTL8111G

Function : Integrated 10/100/1000M Ethernet Controller

Package : QFN 32 PinType

Manufactures : Realtek


RTL8111G datasheet


The Realtek RTL8111GCG/RTL8111GSCG 10/100/1000M Ethernet controller combines a triplespeed IEEE 802.3 compliant Media Access Controller (MAC) with a triplespeed Ethernet transceiver, PCI Express bus controller, and embedded memory. With stateoftheart DSP technology and mixedmode signal technology, the RTL8111G/RTL8111GS offers highspeed transmission over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable. Functions such as Crossover Detection and AutoCorrection, polarity correction, adaptive equalization, crosstalk cancellation, echo cancellation, timing recovery, and error correction are implemented to provide robust transmission and reception capability at high speeds.



1. Auto-Negotiation with Next Page capability
2. Supports PCI Express 1.1
3. Supports pair swap/polarity/skew correction
4. Crossover Detection & AutoCorrection
5. Supports 1-Lane 2.5Gbps PCI Express Bus
6 .Embedded OTP memory
7. Supports hardware ECC (Error Correction Code) function
8. Supports hardware CRC (Cyclic Redundancy Check) function
9. Transmit/Receive onchip buffer support
10. Supports PCI MSI (Message Signaled Interrupt) and MSIX
11. Supports 25MHz or 48MHz Oscillator

Other data sheets within the file : RTL8111GCG, RTL8111GSCG

RTL8111G Datasheet PDF

RTL8111G pdf