# RTL8139

> family of network controllers ICs by Realtek

**Wikidata**: [Q4048073](https://www.wikidata.org/wiki/Q4048073)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/RTL8139)  
**Source**: https://4ort.xyz/entity/rtl8139

## Summary
The RTL8139 is a family of network controller integrated circuits (ICs) manufactured by Realtek. It is classified as a model series of integrated circuits and controllers designed to interface with peripheral devices. The primary utility of the RTL8139 is its use in network cards to connect computers to computer networks.

## Key Facts
- **Manufacturer:** Realtek.
- **Classification:** Instance of a "model series" and "integrated circuit model."
- **Function:** Serves as a controller that interfaces with peripheral devices.
- **Primary Use:** Used in network cards (hardware components connecting computers to networks).
- **Aliases:** Realtek 8139.
- **Hierarchy:** Subclass of "controller" and "integrated circuit."
- **Wikipedia Presence:** Titled "RTL8139" with entries in English and Russian.
- **Google Knowledge Graph ID:** `/g/11bc5tkgt8`.

## FAQs
### Q: What is the RTL8139?
A: The RTL8139 is a family of network controller integrated circuits produced by Realtek. It functions as a controller used in network hardware.

### Q: What is the primary function of the RTL8139?
A: Its primary use is in network cards, acting as the physical interface that connects a computer to a computer network.

### Q: Who manufactures the RTL8139?
A: The RTL8139 is manufactured by Realtek.

## Why It Matters
The RTL8139 matters as a distinct family of integrated circuits that facilitates essential network connectivity. As a specialized controller, it bridges the gap between a computer's internal architecture and external network infrastructure. By serving as a core component in network cards, the RTL8139 enables the hardware interface required for data transmission, allowing computing devices to communicate with peripheral networks. Its classification as a specific model series of integrated circuits underscores its role as a standardized building block in network hardware design. The existence of this specific controller family highlights the modular nature of computing components, where distinct ICs manage specific tasks like network traffic control.

## Notable For
- Being a distinct **family of network controller ICs** produced by Realtek.
- Its specific application as a **controller** interfacing with network peripherals.
- Serving as a foundational component in **network cards**.
- Classification as both a **model series** and an **integrated circuit model**.

## Body
### Definition and Classification
The RTL8139 is an integrated circuit model and model series classified as a type of controller. In computing architecture, a controller is a device that interfaces with a more peripheral device. Specifically, the RTL8139 falls under the subclass of integrated circuits, indicating it is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material.

### Manufacturer and Identity
This entity is manufactured by **Realtek**. It is documented in knowledge bases under the aliases "Realtek 8139" and "RTL8139." It is assigned the Google Knowledge Graph ID `/g/11bc5tkgt8`. The entity has a sitelink count of 2, corresponding to its Wikipedia entries in English (`en`) and Russian (`ru`).

### Application in Hardware
The RTL8139 is utilized primarily in **network cards**. A network card is defined as a hardware component that connects a computer to a computer network. By functioning as the controller within this hardware, the RTL8139 enables the necessary interface for network communication. An image of the component (Realtek RTL8139D) is available via Wikimedia Commons, confirming its physical nature as a hardware chip.