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RTL8221B-VB-CG

Name: RTL8221B-VB-CG
Rating: 4.7 (12 reviews)

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規格

Manufacturer	Realtek Semicon
Package	QFN-48
Operating Temperature	-40℃~+85℃
Voltage - Supply	1.8V
Interface	SGMII

概述

Description

The RTL8221B-VB-CG is a versatile and cost-effective Ethernet MAC (Media Access Control) controller designed by Realtek Semiconductor. It supports IEEE 802.3 standards, enabling efficient communication over Ethernet networks. This device is particularly suitable for low-power applications, making it ideal for embedded systems, consumer electronics, and IoT devices.
Key features include support for both 10/100 Mbps Ethernet connections, integrated PHY (Physical Layer) functionality, and advanced power-saving modes. The RTL8221B-VB-CG offers easy integration with various microcontrollers and processors through a simple interface. It also comes with built-in diagnostic capabilities, enhancing troubleshooting and network management.
Overall, the RTL8221B-VB-CG is a reliable choice for developers looking to implement Ethernet connectivity in their products, providing a balance between performance, power efficiency, and cost-effectiveness.

Features

The RTL8221B-VB-CG is a highly integrated USB 3.0 to SATA bridge controller designed for external storage solutions. Key features include:
1. USB 3.0 Interface: Supports high-speed data transfer rates up to 5 Gbps.
2. SATA III Compatibility: Compatible with SATA I, II, and III drives, supporting up to 6 Gbps.
3. UASP Support: Enhances performance with USB Attached SCSI Protocol for faster data transfer.
4. Power Management: Features low power consumption modes to prolong device battery life.
5. Plug and Play: Easy installation with no drivers needed for most operating systems.
6. Data Encryption: Supports hardware encryption for data security.
7. Wide OS Compatibility: Works with various operating systems, including Windows and Linux.
8. Compact Design: Ideal for compact external drive enclosures.
Overall, the RTL8221B-VB-CG is suitable for applications requiring efficient and high-speed data transfer between USB and SATA interfaces.

Package

The RTL8221B-VB-CG is typically packaged in a QFN (Quad Flat No-lead) format. This package type is designed for high-density applications, offering a compact footprint and efficient thermal performance.

Pinout

The RTL8221B-VB-CG is a Realtek USB Ethernet controller that typically features a 32-pin LQFP (Low-profile Quad Flat Package) configuration.
Pin Functions:
1. Power Pins:
- VDD: Power supply for the chip.
- VSS: Ground.
2. USB Interface:
- D+ and D-: USB differential signaling lines for communication.
3. Ethernet Interface:
- TX and RX pins for transmitting and receiving data.
4. Control Signals:
- Various GPIO pins for configuration and status indication.
5. Crystal Oscillator Pins:
- For connecting an external crystal or oscillator for clock generation.
6. Additional Features:
- Pins for external memory, if supported, and other interfaces.
This configuration allows the RTL8221B to provide connectivity between USB and Ethernet networks, making it suitable for various applications requiring USB to Ethernet bridging.

Manufacturer

The RTL8221B-VB-CG is manufactured by Realtek Semiconductor Corporation, a Taiwanese company. Realtek specializes in the design and development of integrated circuits (ICs) for various applications, including network communication, audio, and multimedia. The company is well-known for its Ethernet controllers, audio codecs, and wireless communication chips, serving a wide range of industries such as consumer electronics, telecommunications, and computer hardware. Founded in 1987, Realtek has established itself as a significant player in the semiconductor industry, providing innovative solutions and technologies to enhance connectivity and multimedia experiences.

Application

The RTL8221B-VB-CG is a USB controller primarily used in consumer electronics, such as TVs, set-top boxes, and digital signage. It facilitates USB connectivity for data transfer, peripheral support, and multimedia applications. Additionally, it is utilized in industrial automation and IoT devices for efficient communication and control.

Equivalent

The RTL8221B-VB-CG chip is a Realtek USB to Ethernet controller. Equivalent products include the ASIX AX88772, Microchip LAN7515, and the Texas Instruments TLK10071. These alternatives also provide USB to Ethernet functionality, supporting similar protocols and applications. Always verify specific compatibility and features as needed for your application.