Realtek RTL8152B-VB-CG 10/100M Ethernet Controller USB 2.0 to Ethernet Bridge Chip Supports Remote Wake-Up QFN-24

RTL8152B-VB-CG Product Overview

The Realtek RTL8152B-VB-CG is a highly integrated USB 2.0 to 10/100M Ethernet controller chip from Realtek Semiconductor. It integrates an IEEE 802.3u compliant Media Access Controller (MAC) , a USB bus controller, and embedded memory into a single chip. Housed in a 24-pin QFN-EP (4×4mm) compact package, the RTL8152B-VB-CG features a built-in linear regulator (LDO) to reduce BOM cost. Supporting both 10Mbps and 100Mbps data rates, the chip leverages advanced DSP technology and mixed-mode signal technology for robust transmission over CAT 5 UTP cable (100Mbps) or CAT 3 UTP cable (10Mbps). With embedded OTP (One-Time-Programmable) memory, comprehensive ACPI power management, remote wake-up, and Energy Efficient Ethernet (EEE) support, the RTL8152B-VB-CG is a cost-effective 10/100M network controller for a wide range of USB-based applications.

RTL8152B-VB-CG Key Features

The RTL8152B-VB-CG embodies Realtek's deep expertise in cost-effective network controller design through its robust architecture and feature set. It features a USB 2.0 interface (compatible with USB 1.1) and supports 10/100Mbps auto-negotiation. The RTL8152B-VB-CG integrates comprehensive signal processing functions including Crossover Detection & Auto-Correction, Polarity Correction, Adaptive Equalization, Cross-talk Cancellation, Echo Cancellation, Timing Recovery, and Error Correction to ensure robust transmission and reception in various environments. The chip supports 25MHz or 48MHz external clock input (from oscillator or system clock source). It features Link Down power saving and IEEE 802.3az-2010 Energy Efficient Ethernet (EEE) , automatically entering Low Power Idle mode during low link utilization to save power. The RTL8152B-VB-CG supports Remote Wake-up including AMD Magic Packet and Microsoft Wake-Up Frame, as well as RealWoW! technology for remote wake-up over the Internet. It supports Protocol Offload for ARP (IPv4) and NS (IPv6) protocols in D3 power state. The RTL8152B-VB-CG supports IEEE 802.1Q VLAN and IEEE 802 IP Layer 2 priority encoding, and is fully compatible with Microsoft NDIS5, NDIS6 (IPv4, IPv6, TCP, UDP) Checksum features. The chip supports ECMA proxy protocol for network task handling during host sleep. The RTL8152B-VB-CG supports crystal-less LAN wake-up and auto-negotiation with Next Page capability. Operating voltage is 3.3V, with a supply voltage range of 1V to 5.25V, operating current of 60mA, and temperature range of 0℃ to 70℃. The chip offers MII, SPI, and USB interfaces.

RTL8152B-VB-CG Applications

With its highly integrated USB-to-Ethernet functionality and compact QFN package, the RTL8152B-VB-CG is widely deployed in various networking applications. It is the core solution for USB 10/100M Ethernet dongles, converting USB ports to RJ45 Ethernet interfaces. The RTL8152B-VB-CG is also used in motherboard-integrated USB 10/100M Ethernet ports. In laptops, docking stations, and other mobile devices, RTL8152B-VB-CG enables wired network connectivity. The RTL8152B-VB-CG is also suitable for workstations, servers, as well as industrial embedded systems, communication platforms, and IoT terminals. Additionally, it is used in electronic dog devices and expansion ports.

RTL8152B-VB-CG Key Advantages

The RTL8152B-VB-CG stands out as a mature, commercially available USB 2.0 to 10/100M Ethernet controller chip, striking an excellent balance between performance, cost, and integration. Housed in a 24-pin QFN-EP (4×4mm) compact packagewith built-in LDO and embedded memory, it significantly reduces external components, BOM cost, and PCB footprint. The RTL8152B-VB-CG features OTP memory for flexible configuration. With support for multiple remote wake-up technologies (Magic Packet, Wake-Up Frame, RealWoW!) and protocol offload, it is ideal for low-power networking applications. The RTL8152B-VB-CG supports IEEE 802.3az Energy Efficient Ethernet (EEE) for significant power reduction during low traffic. The chip supports 25MHz or 48MHz external clock input for flexible design. With Microsoft NDIS5/NDIS6 checksum offload and VLAN support, it reduces CPU utilization, making it especially suitable for network server applications. Realtek provides comprehensive driver support for Windows, Linux, and macOS. The RTL8152B-VB-CG offers system integrators and OEMs a highly competitive 10/100M Ethernet connectivity solution.

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