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Microchip KSZ8001L

Ethernet Controller, 100 Mbps, IEEE 802.3u, 1.71 V, 1.89 V, LQFP, 48 Pins

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Brands: Microchip Technology, Inc

Mfr.Part #: KSZ8001L

Datasheet: KSZ8001L Datasheet (PDF)

Package/Case: LQFP-48

Product Type: Integrated Circuits (ICs)

RoHS Status:

Stock Condition: 3141 pcs, New Original

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KSZ8001L General Description

The KSZ8001 is a 10BASE-T/100BASE-TX/100BASE-FX Physical Layer Transceiver, powered by a single 3.3v supply. With core operation at 1.8 volts the device is low power, consuming typically 172mW.

The solution provides MII/RMII/SMII host interfaces commonly available on Microcontrollers, Microprocessors or FPGA's with integrated IEEE 802.3 MACs. A unique mixed-signal design extends signaling distance while reducing power consumption. HP Auto MDI/MDI-X provides the most robust solution for eliminating the need to differentiate between crossover and straight-through cables.

Featuring LinkMD cable diagnostics, which allows detection of common cabling plant problems such as open and short circuits, the KSZ8001 represents a new level of features and performance and is an ideal choice of physical layer transceiver.

Microchip's complimentary and confidential LANCheck® online design review service is available for customers who have selected our products for their application design-in. The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.



      • Single chip 100BASE-TX/100BASE-FX/10BASE-T physical layer solution
      • 3.3v Single supply design consuming 172mW typical
      • Robust (130m+) operation over standard cables
      • Supports Media Independent Interface (MII), Reduced MII (RMII), and Serial MII (SMII)
      • LinkMD feature to determine cable length and diagnose faulty cables up 200m with ±2m accuracy
      • Configurable through MII serial management port or via external control pins
      • Programmable LED outputs for link, activity, full/half duplex, collision, and speed
      • On-chip built-in analog front end filtering for both 100BASE-TX and 10BASE-T
      • Supports HP MDI/MDI-X auto crossover
      • Supports power down mode and power saving mode
      • MDC/MDIO to 12.5 MHz for rapid configuration
      • Fully compliant to IEEE 802.3u standard
      • Supports auto-negotiation and manual selection for 10/100Mbps speed and full/half-duplex mode
      • Supports back-to-back, 100BASE-FX to 100BASE-TX for media converter applications
      • Single 3.3V power supply with built-in 1.8V regulator (‘L’ parts)
      • Available in 48-Pin LQFP and 48-Pin SSOP packages
Microchip Technology, Inc Inventory


Parameter Value Parameter Value
Manufacturer: Microchip Product Category: Ethernet ICs
RoHS: Details Mounting Style: SMD/SMT
Package / Case: LQFP-48 Product: Ethernet Transceivers
Standard: 10BASE-T, 100BASE-FX/TX Number of Transceivers: 1 Transceiver
Data Rate: 10 Mb/s, 100 Mb/s Interface Type: MII, RMII, SMII
Supply Voltage - Min: 1.8 V, 3.3 V Minimum Operating Temperature: 0 C
Maximum Operating Temperature: + 70 C Series: KSZ8001
Packaging: Tray Brand: Microchip Technology
Moisture Sensitive: Yes Operating Supply Voltage: 1.8 V
Product Type: Ethernet ICs Factory Pack Quantity: 250
Subcategory: Communication & Networking ICs Supply Current - Max: 52 mA
Unit Weight: 0.006409 oz feature-process-technology CMOS
feature-packaging Tray feature-rad-hard
feature-pin-count 48 feature-supplier-package LQFP
feature-standard-package-name1 feature-cecc-qualified No
feature-esd-protection Unknown feature-escc-qualified
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc No


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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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Datasheet PDF

Preliminary Specification KSZ8001L PDF Download

Key points

  • The KSZ8001L chip is a 10/100BASE-TX/FX Ethernet physical layer transceiver. It provides a highly integrated solution for Ethernet applications with reduced power consumption. It features Auto-MDIX capability for simplified PCB layout and supports various media interfaces, including MII, RMII, and SNI. The chip also includes advanced features like loopback, link monitoring, and cable diagnostics for effective network management.
  • Equivalent

    Some equivalent products to the KSZ8001L chip include the KSZ8081 series, KSZ8463 series, and KSZ8721 series, all from Microchip Technology. These products are similar in terms of their features and functionality and can serve as alternatives to the KSZ8001L chip.
  • Features

    The KSZ8001L is a single-port 10/100 Mbps Ethernet physical-layer transceiver. It features robust data transmission, low power consumption, and supports automatic MDI/MDI-X crossover. It also has advanced power management, link speed information, energy detection, and enhanced diagnostic and protection capabilities.
  • Pinout

    The KSZ8001L is a 48-pin Ethernet physical layer transceiver (PHY) with a 10/100BASE-TX/FX MII interface. It functions as a link between the physical layer and the MAC layer of an Ethernet system.
  • Manufacturer

    The KSZ8001L is a product of Microchip Technology Inc. It is a leading manufacturer of microcontrollers, mixed-signal, analog, and Flash-IP solutions. The company specializes in providing a wide range of innovative products for various industries including automotive, aerospace, consumer electronics, and more.
  • Application Field

    The KSZ8001L is a Gigabit Ethernet transceiver that is commonly used in network communication applications such as switches, routers, and industrial Ethernet equipment. It provides a cost-effective solution for high-speed data transmission in various network infrastructure systems.
  • Package

    The KSZ8001L chip is available in a 48-pin LQFP (Quad Flat Package) form, designed for surface-mount applications. The package has a size of 7mm x 7mm.

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