KSZ8041RNL-TR

KSZ8041RNL-TR is a stand-alone 10/100 Mbps Ethernet PHY transceiver from Microchip (Micrel). It provides the physical layer between a MAC (in a microcontroller/SoC) and the external RJ-45 magnetics, implementing IEEE 802.3u 10/100BASE-TX with auto-negotiation. Key features:
- MAC interface: selectable MII or RMII
- Management interface: MDC/MDIO
- PHY side: supports 10/100 Mbps, half/full duplex, and auto MDI/MDIX
- Status indicators and low-power options
- RoHS-compliant, -TR packaging (Tape-and-Reel)
Typical use: embedded Ethernet designs needing a dedicated PHY (e.g., microcontroller or SoC with an MAC but no built-in PHY). For details (pinout, clock requirements, supply rails, timing), consult the KSZ8041RNL-TR datasheet.

KSZ8041RNL-TR is a 10/100 Ethernet PHY. Common cross-references (equivalents) include:
- TI DP83848 / DP83848C (MII/RMII, 10/100)
- Microchip LAN8720A (RMII, 10/100)
- Microchip LAN8740 / LAN8742 (RMII/MII, 10/100/1000 variants)
Note: verify interface (MII/RMII), speed, package and electrical specs before substituting.

Here are the key features of KSZ8041RNL-TR (Microchip Micrel PHY):
- 10/100BASE-T Ethernet PHY (IEEE 802.3/802.3u) for 10 and 100 Mbps operation
- Auto-Negotiation and Auto MDI/MDI-X
- Full- and Half-Duplex operation
- MAC interface options: MII and RMII
- LED outputs for Link and Activity indicators
- Energy Efficient Ethernet (IEEE 802.3az) support
- Low power modes and fast wake/sleep behavior
- Industrial temperature range (-40°C to 85°C)
- 3.3V-compatible I/O (TTL-level interfaces)
- Tape & Reel packaging (TR) for automated assembly
- PHY-only device (requires external MAC and magnetics)
Note: Magnetics are typically external; confirm exact pinout and interface options from the datasheet for your design.

- Pin count: 28 pins.
- Function: 10/100 Mbps Ethernet PHY transceiver (physical layer) with MII/RMII interface to the MAC, MDIO/MDC management, TX/RX data paths, LED/status outputs, plus power and ground pins.

- Manufacturer: Microchip Technology (Micrel, Inc. lineage).
- What kind of company: An American multinational semiconductor company that designs and manufactures integrated circuits (ICs), including microcontrollers, analog, memory, and other ICs.

KSZ8041RNL-TR is a standalone 10/100 Mbps Ethernet PHY (RJ-45) designed to pair with a MAC via RMII/MII. Common applications include:
- Embedded/MCU-based Ethernet designs (RMII/MII MAC interface)
- Industrial automation and control equipment needing reliable 10/100BASE-T
- Consumer/networked devices (printers, IP cameras, VoIP phones, set-top boxes, smart TVs)
- Network equipment (routers, gateways, switches, bridges)
In short, any system requiring a robust 10/100 Ethernet physical layer with a standard MAC interface.

KSZ8041RNL-TR uses a 16‑pin surface‑mount SOIC package (Small Outline IC). RNL indicates RoHS lead‑free, and -TR means Tape & Reel packaging.