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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RTL2832 Datasheet – RTL2832U Realtek QFN 48Pin

This is one of the semiconductor types.

This part name is RTL2832, RTL2832U.

This product has A/D converter, USB salve interface DVB-T COFDM Demodulator functions.

Package : QFN 48 Pin, 6 mm square chip.

Manufacturers of product is Realtek Semiconductor.

Image :
RTL2832 datasheet

Some of the text files within the PDF file :

Description :

The Realtek  RTL2832U is a 6 mm square chip (QFN) with 12 pins per side. It uses 3.3 Volts and a 28.8 MHz crystal. The chip’s datasheet comes with a non-disclosure agreement. The IC is a DVB-T  COFDM  Demodulator. DVB-T  stands  for  Digital Video  Broadcasting:  Terrestrial and COFDM stands for Coded Orthogonal Frequency-Division Multiplexing. The “U” in the name stands for the USB  (2.0)  interface.  USB  uses  4  pins:  +Voltage,  D-,  D+,  and  ground.  A  USB  extension  cord  is recommended  with  RTL-SDR  to  keep  the  radio  away  from  computer  generated  noise.  The RTL2832U contains eight general purpose input/output ports and an infrared remote control port.

The RTL2832 is an IC produced by Realtek Corporation to demodulate DVB-T (digital TV) signals and send them to a host computer over the USB bus. It has an additional mode designed to allow reception of consumer FM radio, and this is achieved by capturing I/Q samples and forwarding them to the host computer for demodulation and playback. ( RTL2832U Info Realtek.com.tw  )

RTL2832 Datasheet
The RTL2832U is a high-performance DVB-T COFDM demodulator that supports a USB 2.0 interface. The RTL2832U complies with NorDig Unified 1.0.3, D-Book 5.0, and EN300 744 (ETSI Specification). It supports 2K or 8K mode with 6, 7, and 8MHz bandwidth. Modulation parameters, e.g., code rate, and guard interval, are automatically detected.

The RTL2832U supports tuners at IF (Intermediate Frequency, 36.125MHz), low-IF (4.57MHz), or Zero-IF output using a 28.8MHz crystal, and includes FM/DAB/DAB+ Radio Support. Embedded with an advanced ADC (Analog-to-Digital Converter), the RTL2832U features high stability in portable reception.

The state-of-the-art RTL2832U features Realtek proprietary algorithms (patent-pending), including superior channel estimation, co-channel interface rejection, long echo channel reception, and impulse noise cancellation, and provides an ideal solution for a wide range of applications for PC-TV, such as USB dongle and MiniCard/USB, and embedded system via USB interface.

Reference Site :

1. https://redd.it/1uazsw

2. http://www.amateur-radio-wiki.net/index.php?title=RTL2832

There is a non-public datasheet.

RTL2832 Datasheet

RTL2832 pdf