Item specifics
Description
RTL8201F-VB-CG Product Overview
The Realtek RTL8201F-VB-CG is a highly integrated single-port 10/100Mbps Ethernet Physical Layer (PHY) transceiver from Realtek Semiconductor. Housed in a QFN-32-EP (5×5mm) compact package， the RTL8201F-VB-CG integrates all 10/100M Ethernet Physical-layer functions including Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), and Twisted Pair Physical Medium Dependent Sublayer (TP-PMD) into a single chip. The RTL8201F-VB-CG supports both MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) for MAC connectivity. Manufactured on an advanced CMOS process with on-chip DSP technology, the chip meets low voltage and low power requirements. With support for Auto-Negotiation, HP Auto-MDIX, and PECL fiber interface, the RTL8201F-VB-CG is compliant with IEEE 802.3/802.3u standards. It is an ideal PHY solution for industrial control, embedded systems, networking equipment, and consumer electronics.
RTL8201F-VB-CG Key Features
The RTL8201F-VB-CG embodies Realtek's deep expertise in cost-effective Ethernet PHY design. The chip supports both MII and RMII MAC interfaces, offering flexible connectivity for different SoC and MCU platforms. The RTL8201F-VB-CG supports 10BASE-T and 100BASE-TX Ethernet standards with Auto-Negotiation capability. The chip features HP Auto-MDIX for automatic detection of straight-through or crossover cables. The RTL8201F-VB-CG supports a PECL interface for connection to external 100Base-FX fiber optic transceivers. Built on advanced CMOS process with on-chip DSP technology, it delivers excellent performance under all operating conditions. The RTL8201F-VB-CG supports Energy Efficient Ethernet for reduced power consumption during low activity. It also features programmable LED indication and low-power mode. The RTL8201F-VB-CG operates at 3.3V (2.97V to 3.63V)with a temperature range of 0℃ to +70℃. The chip is offered in a QFN-32-EP (5×5mm) package.
RTL8201F-VB-CG Applications
With its highly integrated PHY functionality, flexible interface configuration, and compact QFN package, the RTL8201F-VB-CG is widely deployed in embedded networking applications. The chip is an ideal PHY solution for industrial Ethernet controllers, smart meters, security surveillance equipment, home gateways, routers, switch expansion modules, and building automation systems. The RTL8201F-VB-CG is also used in DTV (Digital TV), MAU (Media Access Units), CNR (Communication and Networking Riser), game consoles, printers and office equipment, DVD players and recorders, Ethernet hubs, and Ethernet switches. The chip is particularly common in network products based on HiSilicon and Rockchip platforms. Additionally, it is widely used in development boards and evaluation kits as the core physical-layer interface for Ethernet communication.
RTL8201F-VB-CG Key Advantages
The RTL8201F-VB-CG stands out as a mature, commercially available 10/100M Ethernet PHY that strikes an excellent balance between performance, cost, and integration. Housed in a QFN-32-EP (5×5mm) compact package, it is one of the smallest 10/100M Ethernet PHYs available， delivering complete PHY functionality while minimizing PCB footprint. The RTL8201F-VB-CG supports both MII and RMII interfaces for flexible SoC compatibility, with RMII mode saving I/O pins. The PECL fiber interface enables 100Base-FX fiber communication， expanding application possibilities. The HP Auto-MDIX function automatically detects straight-through or crossover cables, simplifying installation and maintenance. The chip's Energy Efficient Ethernet support reduces power consumption during low activity. The RTL8201F-VB-CG offers system integrators and OEMs a highly competitive 10/100M Ethernet PHY solution.
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FAQs:
1 What is the RTL8201F-VB-CG chip
RTL8201F-VB-CG is a single port 10/100M Fast Ethernet physical layer transceiver chip from Realtek commonly used to convert the MAC interface of a host controller into standard Ethernet signals.
2 What package and pin count does it use
RTL8201F-VB-CG adopts a QFN32 no lead surface mount package with 32 pins and an exposed thermal pad on the bottom making it very compact for small form factor PCBA designs.
3 What network speeds does it support
RTL8201F-VB-CG supports auto negotiation of 10Mbps and 100Mbps Ethernet speeds and is fully compliant with IEEE 802.3 and 802.3u standards and does not support Gigabit networking.
4 What is the communication interface with the host controller
RTL8201F-VB-CG supports the standard MII Media Independent Interface and RMII Reduced MII interfaces for data exchange with the Ethernet MAC controller of the host CPU MCU or FPGA via a parallel data bus.
5 What are the operating voltage and temperature ranges
RTL8201F-VB-CG uses a multi voltage design typically with a core supply of 1 point 2 volts and configurable IO interface voltages of 1 point 8 volts 2 point 5 volts or 3 point 3 volts. The CG suffix indicates an industrial grade version with a temperature range from minus 40 degrees Celsius to plus 85 degrees Celsius.
6 What application scenarios is this chip suitable for
RTL8201F-VB-CG is widely used in Gigabit and Fast Ethernet routers network switches smart set top boxes industrial control boards and embedded development boards requiring Fast Ethernet connectivity.
7 What hardware network features does it support
RTL8201F-VB-CG supports Auto MDI X automatic crossover detection eliminating the need to distinguish between straight through and crossover cables and baseline wander compensation to enhance long distance cable transmission stability.
8 What external components are needed
RTL8201F-VB-CG requires an external 25 megahertz crystal oscillator for clock reference and needs to be paired with a standard magnetic isolation transformer and an RJ45 connector at the Ethernet interface.
9 What are the PCB design considerations for the QFN32 package
For RTL8201F-VB-CG, the exposed thermal pad on the bottom must be grounded to a large copper area on the PCB for heat dissipation. The RMII or MII data lines require length and impedance control and the Ethernet differential traces must strictly follow 50 ohm or 100 ohm impedance matching with equal length routing.
10 Can it be directly connected to a network cable
No, RTL8201F-VB-CG cannot be directly connected. It is only responsible for data transmission and reception and requires external magnetic isolation transformers to couple the signals and provide electrical isolation before connecting to a standard RJ45 network port.