REALTEK RTL8201FR-VR-CG

Mfr. Part

RTL8201FR-VR-CG

Manufacturer

REALTEK

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Detailed Description

Single-port 10/100BASE-TX Ethernet PHY transceiver for connecting a MAC to twisted-pair copper networks. Supports both MII and RMII interfaces, auto-negotiation for 10/100 Mbps, and Auto-MDI/MDIX for straight/crossover cable flexibility. Designed for embedded and networking equipment that needs reliable Fast Ethernet physical layer connectivity. Current lot carries data code 21+, and our inventory shows 25,097 units available.

Key Features

IEEE 802.3/802.3u compliant 10BASE-T and 100BASE-TX PHY

MII and RMII interface options to the host MAC

Auto-Negotiation for 10/100 Mbps, full/half duplex

Auto-MDI/MDIX to eliminate manual cable type selection

Integrated analog front-end with line driver and receiver

LED indicator pins for link/activity/speed status

Strap pins for easy configuration at reset

25 MHz crystal or clock input supported for PHY timing

Low-power operation with power-down and energy detect modes

Robust ESD protection and EMI performance typical of this family

Key Advantages

Proven interoperability with major MACs and switches

Simplifies design with Auto-MDI/MDIX and strap configuration

Compact footprint helps reduce PCB size

Cost-effective Fast Ethernet solution for high-volume products

Stable supply chain with broad ecosystem and field history

Easy migration across Realtek 8201 family variants

Packaging

Type: VR code indicates a 48-pin QFN package commonly used for this model

Material: Molded epoxy package with copper leadframe; lead-free and RoHS compliant (CG indicates “Green” lead-free grade)

Size: Compact body, typically around 7 x 7 mm for QFN-48; confirm exact dimensions in the datasheet

Pin configuration: 48 pins including MII/RMII signals, TXP/TXN and RXP/RXN differential pairs, LED pins, strap/config pins, crystal/clock pins, reset, and multiple power/ground pins with an exposed pad for grounding

Thermal characteristics: Good heat spreading via exposed pad; recommended thermal vias under the pad for stable operation across ambient conditions

Electrical properties: 3.3 V I/O supply typical for PHYs in this class; supports 25 MHz crystal input; designed for 10/100BASE-TX magnetics; exact limits and tolerances should be taken from the datasheet

Package code in our catalog: 831 (internal catalog reference; use the datasheet for mechanical drawings and land pattern)

Lifecycle

Status: Active and widely used in production designs; not near discontinuation based on our latest availability

Equivalent or alternative models:

- Realtek: RTL8201E, RTL8201CL, RTL8201N (verify pinout and interface before drop-in use)

- Microchip/SMSC: KSZ8081 family (e.g., KSZ8081MNX), KSZ8041NL, LAN8720A (RMII)

- Texas Instruments: DP83822I, DP83848 series

- Broadcom legacy: BCM5201/BCM5221 (for reference in older designs)

Note: Always check pin compatibility, interface (MII vs RMII), package, and power rails. If you need form-fit-function guidance or current EOL notices, contact our sales team via the Y-IC website for the latest information.

Key Application Areas

Home and SMB routers, gateways, access points

Ethernet switches and unmanaged hubs

Industrial controllers, PLCs, and gateways

IoT and embedded modules with Ethernet connectivity

Networked printers, scanners, and multifunction devices

IP cameras, NVRs, and video encoders

Media converters and Ethernet bridges

Set-top boxes, smart TVs, and consumer networking gear

Datasheet

Our website hosts the most authoritative datasheet and technical resources for RTL8201FR-VR-CG. Download the datasheet on this page to confirm electrical limits, package drawings, pinouts, and design guidelines.

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