The RTL8201F-VB-CG from Realtek Semiconductor is a single-chip, single-port 10/100Mbps Fast Ethernet PHY transceiver designed to provide the physical-layer interface between an Ethernet MAC and a wired Ethernet network. It supports both 10Mbps and 100Mbps operation for embedded and networking applications.
The device supports both MII and RMII MAC interfaces, allowing designers to select the interface that best matches the host processor and available PCB resources. It supports full- and half-duplex operation for standard Fast Ethernet connections.
Integrated Auto-MDIX automatically handles MDI/MDI-X crossover requirements, simplifying Ethernet cabling. Auto-Negotiation is also supported for automatic selection of link speed and duplex mode according to the capabilities of the connected network device.
In addition to twisted-pair Ethernet, the RTL8201F-VB-CG supports a PECL interface for connection to an external 100BASE-FX fiber-optic transceiver, enabling its use in embedded systems requiring Fast Ethernet fiber connectivity.
Realtek specifies a low-power supply architecture using 3.3V with an internally generated 1.1V core supply. The integrated regulator reduces the need for a separate external core-voltage regulator and simplifies power-system implementation.
The exact RTL8201F-VB-CG is supplied in a 32-pin MII/RMII QFN Green package. Realtek lists applications including digital TVs, game consoles, printers and office equipment, DVD equipment, Ethernet hubs, Ethernet switches and embedded systems containing an Ethernet MAC. The exact device remains listed on Realtek’s current official product website.
Key Specifications:
- Brand: Realtek Semiconductor
- Part Number: RTL8201F-VB-CG
- Product Type: Fast Ethernet PHY Transceiver
- Number of PHY Ports: 1
- Ethernet Speed: 10Mbps / 100Mbps
- Ethernet Standards: 10BASE-T / 100BASE-TX
- MAC Interfaces: MII / RMII
- Full Duplex: Supported
- Half Duplex: Supported
- Auto-MDIX: Supported
- Auto-Negotiation: Supported
- Twisted-Pair Mode: Supported
- Fiber Mode: Supported
- 100BASE-FX: External Transceiver Support
- Fiber Interface: PECL
- Supply Architecture: 3.3V with Internal 1.1V Core Supply
- Integrated Core Regulator: Yes
- Technology: Low-Power CMOS
- Package: 32-Pin QFN Green Package
- Mounting Type: SMD / SMT
- Applications: DTV, Game Consoles, Printers, Office Equipment, Ethernet Hubs, Ethernet Switches and Embedded Ethernet Systems.
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