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Ethernet ICs

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Key Features

  • 3-port 10/100 integrated switch with physical layer transceivers
  • 64k Byte of SRAM on chip for frame buffering
  • 1.0Gbps high performance memory bandwidth
  • 10BaseT, 100BaseTX and 100BaseFX modes of operation
  • Support for UTP or fiber installations
  • Superior analog technology for reduced power and die size
  • Supports port based VLAN
  • QoS feature!! Supports 802.1p based priority or portbased priority
  • Indicators for link, activity, full/half-duplex and speed
  • Unmanaged operation via strapping at system reset time
  • Hardware based 10/100, full/half, flow control and autonegotiation
  • Individual port forced modes (full-duplex, 100BaseTX) when auto-negotiation is disabled
  • Wire speed reception and transmission
  • On chip integrated address look-up engine, supports 1K absolute MAC addresses
  • Automatic address learning, address aging and address migration
  • Full-duplex IEEE 802.3x flow control (Pause) with force mode option
  • Half-duplex back pressure flow control
  • Comprehensive LED support
  • External MAC interface (MII or SNI 7-wire ) for router applications
  • 300mA (0.75W) including physical transmit drivers
  • Commercial temperature range: 0°C to +70°C
  • Available in 128-pin PQFP with single 2.5V power supply
Microchip Original Stock


Manufacturer Microchip Product Category Ethernet ICs
Mounting Style SMD/SMT Package / Case PQFP-128
Product Ethernet Switches Standard 10BASE-T, 100BASE-TX
Number of Transceivers 3 Transceiver Data Rate 10 Mb/s, 100 Mb/s
Interface Type MII, SNI Operating Supply Voltage 2.5 V, 3.3 V
Minimum Operating Temperature 0 C Maximum Operating Temperature + 70 C
Brand Microchip Technology / Micrel Height 2.72 mm
Length 20 mm Product Type Ethernet ICs
Subcategory Communication & Networking ICs Supply Voltage - Max 2.75 V, 3.6 V
Supply Voltage - Min 2.35 V


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


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Buying Guide

  • What is the lifespan of KS8993?

    The lifespan of KS8993 depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of KS8993?

    You can find it with PDF Datasheet for KS8993 on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of KS8993?

    Avaq has separate quality services with common quality inspection equipment for testing items, you can also fill out a sample form, our team will get in touch with you within 24 HOURS.

  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

    Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.

  • Where to view my order of KS8993 or my history order record?

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