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See Technical Specifications

RTL8309N +BOM

High-performance, low-power consumption device ideal for network infrastructure development

Manufacturer:

Realtek
Mfr.Part #:

RTL8309N
Datasheet:

RTL8309N Datasheet (PDF)
Pin Count:

65
Released Date:

Oct 6, 2020
Last Modified Date:

Mar 7, 2023 4:10 PM UTC
EDA/CAD Models:

Request Free CAD Models for RTL8309N

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RTL8309N General Description

General DescriptionThe RTL8309N is an 8-port Fast Ethernet switch controller that integrates eight MACs, and eight physical layer transceivers for 10Base-T and 100Base-TX operation into a single chip.The RTL8309N contains a 2K-entry address lookup table. Two 4-way associative hash algorithms avoid hash collisions and maintain forwarding performance.Maximum packet length can be 2K bytes. Three types of independent storm filters are provided to filter packet storms, and an intelligent switch engine prevents Head-of-Line blocking problems.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 four Independent VLAN Learnings (IVLs).Service Quality Supports high performance QoS function oneach port: Supports 4-level priority queues Weighted round robin service Supports strict priority Input/Output port bandwidth control Queue based bandwidth control 1Q-based, Port-based, DSCP-based, IPaddress-based, and other types of priorityassignments Supports IEEE 802.1p Traffic Re-markingSecurity and Management Supports reserved control frame filtering Supports advanced storm filtering Optional EEPROM interface forconfigurationVLAN Functions Supports up to 16 VLAN groups Flexible 802.1Q port/tag-based VLAN Supports four IVLs Leaky VLAN forunicast/multicast/broadcast/ARP packetsPower Saving Functions Supports Energy-Efficient Ethernet (EEE)function (IEEE 802.3az) Link down Power Saving Mode

Key Features

Basic Switching Functions
8-port switch controller with transceiver for
10Base-T and 100Base-TX with:
8-port 10/100M UTP
Non-blocking wire-speed reception and
transmission and non-head-of-line-blocking
forwarding
Complies with IEEE 802.3/802.3u
auto-negotiation
Built-in high efficiency SRAM for packet
buffer, with 2K-entry lookup table and two
4-way associative hash algorithms
2K byte maximum packet length
Flow control fully supported:
Half duplex: Back pressure flow control
Full duplex: IEEE 802.3x flow control
Diagnostic Functions
Supports hardware loop detection function,
with LEDs to indicate the existence of a
loop
Supports cable diagnosis (RTCT function)
LED indicators:
Loop status indication
RTCT status indication
LEDs blink upon reset for LED
diagnostics
Other Features
Optional MDI/MDIX auto crossover for
plug-and-play
Physical layer port Polarity Detection and
Correction function
Robust baseline wander correction for
improved 100Base-TX performance
25MHz crystal
Integrated LDO regulator to generate 1.0V
from 3.3V via one external Diode
Low power, 1.0/3.3V, 55nm CMOS
technology
64-pin QFN package

Application

Network switches for enterprise, data center, and small office/home office (SOHO) environments
Routers and gateways that require Ethernet switching capabilities
Industrial Ethernet switches for harsh environments
Carrier-grade switches for telecommunications networks
Ethernet switches for Internet of Things (IoT) applications

Specifications

Pin Count	65	Released Date	Oct 6, 2020
Last Modified Date	Mar 7, 2023 4:10 PM UTC

RTL8309N Equivalent Parts

You may consider these replacement and alternative parts:

Part Number

In-Stock

Package

Description

Part Number: RTL8306

In-Stock: 5,438

Package:

Description: RTL8306 from Realtek: A similar Ethernet switch controller with 6-port capability and advanced features.

Part Number: RTL8307

In-Stock: 8,006

Package:

Description: RTL8307 from Realtek: Another version of the Ethernet switch controller with 7-port capability and additional features for industrial applications.

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Ratings and Reviews

T**n 09/25/2023

Avaq's lightning-fast delivery left me amazed! In no time, I received the RTL8309N components I needed, enabling me to complete my project ahead of schedule. Thanks for the exceptional service!

A**y 08/27/2023

Avaq truly stands out in terms of customer service. They were prompt in answering my queries about the RTL8309N components, and their courteous and professional attitude was greatly appreciated.

L**y 07/12/2023

I've been ordering electronic components from different distributors, but Avaq's delivery speed is unmatched! My RTL8309N shipment arrived before I knew it, saving me valuable time for my project.

K**n 06/15/2023

When it comes to customer service, Avaq sets the bar high. They assisted me at every step of the way, ensuring the RTL8309N components were a perfect fit for my requirements. A reliable distributor indeed!