KSZ8041RNL

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KSZ8041RNL

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IC TRANSCEIVER FULL 1/1 32MLF

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Spezifikationen

Attribut Wert
Supplier Microchip Technology
Package Tray
ProductStatus Obsolete
Type Transceiver
Protocol RMII
NumberofDrivers/Receivers 1/1
Duplex Full
Voltage-Supply 3.135V ~ 3.465V
OperatingTemperature 0°C ~ 70°C
MountingType Surface Mount
Package/Case 32-VFQFN Exposed Pad

Übersicht

Description

KSZ8041RNL is a 10/100BASE-T Ethernet PHY transceiver from Microchip/Micrel. It sits between a MAC and the external magnetics to provide the physical layer for Ethernet.
Key points:
- 10/100 Mbps operation with IEEE 802.3u compatibility.
- Interfaces to a MAC via MII or RMII (RMII uses a 50 MHz clock).
- Auto-negotiation, speed/duplex detection, and status outputs.
- LED driver outputs for link/activity/duplex/speed indicators.
- External magnetics required; simple power pins (logic supply ~3.3V typical).
- RoHS-compliant package variant (RNL).
Common uses:
- Embedded systems and microcontroller projects needing Ethernet capability.
- Small network devices where a MAC is provided separately (with RMII/MII to the PHY).
Note:
- It is a PHY (not a MAC) and does not include MAC-layer functionality or IP networking; you still need a MAC or MCU with RMII/MII to complete the interface.

Equivalent

Equivalent 10/100 Ethernet PHYs with RMII/MII interfaces include:
- TI DP83848/DP83848C
- Microchip LAN8720A
- Microchip LAN8740A/LAN8742A
Note: verify pinout, voltage (3.3V vs 5V), and RMII/MII compatibility for replacement.

Features

Key features of KSZ8041RNL (10/100 Mbps PHY):
- 10/100BASE-TX Ethernet PHY with RMII/MII interface to MAC (selectable)
- Auto-negotiation for 10/100 Mbps, full/half duplex
- Auto MDI/MDIX crossover support
- MDIO/MDC management interface for PHY registers
- LED outputs for Link, Activity, and Speed status
- Cable diagnostics and link status monitoring
- Low-power/energy-efficient modes
- IEEE 802.3 compliant (10/100BASE-TX)
- External transformer/magnetics required (not integrated)

Pinout

- Pin count: 28 pins (28-pin package).
- Function: 10/100 Mbps Ethernet PHY (physical layer transceiver) that interfaces a MAC to Ethernet magnetics; provides the MAC-PHY interface (MII/RMII), MDIO/MDC management interface, and LED/status pins.

Manufacturer

- Manufacturer: Microchip Technology Inc.
- What kind of company: A global semiconductor company (American) that designs and manufactures microcontrollers, analog/mixed-signal ICs, memory, and networking devices (including Ethernet PHYs). It acquired SMSC’s networking portfolio, including KSZ parts.

Application

KSZ8041RNL is a 10/100 Mbps Ethernet PHY. Typical application areas:
- Embedded systems and MCU-based designs using RMII/MII interfaces.
- Industrial automation and control networks (PLCs, HMIs, sensors, gateways).
- Networking equipment and appliances (routers, switches, NICs, print servers, NAS, IP cameras).
- Consumer electronics with Ethernet (set-top boxes, smart TVs, media players).
- IoT gateways and edge devices requiring a compact, reliable Ethernet PHY.

Package

KSZ8041RNL comes in a 28-pin leadless QFN (about 5x7 mm) package.

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