Prodotti > Circuiti integrati (CI) > Reti e trasmissione dati > KSZ8999I

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Hot Sale

Micrel KSZ8999I, 9Port Ethernet Switch, MII/SNI, 10Mbps, 100Mbps 2.1V, 3.3V, 208Pin PQFP

Fabbricante : Microchip Technology, Inc
Pacchetto : PQFP-208
Tipologia di produzione : Specialized ICs
Datasheet: KSZ8999I Datasheet (PDF)
RoHs Status: Green
Stock: 1200


Richiesta di offerta

Consigli caldi: Si prega di compilare il modulo sottostante e vi contatteremo al più presto.

KSZ8999I Dettagli del prodotto

Ethernet Switches, Micrel Inc

Micrel offers fully integrated, cost effective, managed 10/100Base-TX Ethernet switch solutions.



  • 9 port (8+1) 10/100 integrated switch with eight physical layer transceivers and one MII/SNI interface
  • Advanced Ethernet Switch with internal frame buffer
  • 128K Byte of SRAM on chip for frame buffering
  • 2.0Gbps high performance memory bandwidth
  • Wire speed reception and transmission
  • Integrated address look-up engine, supports 1K absolute MAC addresses
  • Automatic address learning, address aging and address migration
  • Advanced Switch Features
  • Supports 802.1p priority and port based priority
  • Supports port based VLAN
  • Supports 1536 byte frame for VLAN tag
  • Supports DiffServ priority, 802.1p based priority or port based priority of broadcast storm protection
  • Proven transceiver technology for UTP and fiber operation
  • 10BaseT, 100BaseTX and 100BaseFX modes of operation
  • Supports for UTP or fiber on all 8-ports
  • Indicators for link, activity, full/half-duplex and speed
  • Hardware based 10/100, full/half, flow control and auto-negotiation
  • Individual port forced modes (full duplex, 100BaseTX) when auto-negotiation is disabled
  • Full-duplex IEEE 802.3x flow control
  • Half-duplex back pressure flow control
  • Supports MDI/MDI-X auto crossover
  • External MAC interface (MII or 7-wire) for router applications
  • Unmanaged operation via strapping or EEPROM at system reset time (see Reset Reference Circuit section)
  • Comprehensive LED support
  • Single 2.0V power supply with options for 2.5V and 3.3V I/O
  • 900 mA (1.80W) including physical transmit drivers
  • Supports both commercial and industrial temperature
  • Commercial temperature range: 0°C to +70°C (KS8999)
  • Industrial temperature range: –40°C to +85°C (KS8999I)
  • Supports lead free products:
  • Commercial temperature range: 0°C to +70°C (KSZ8999)
  • Industrial temperature range: –40°C to +85°C (KSZ8999I)

KSZ8999I Prodotti

Parametri tecnici

  • Product
  • Ethernet Switches
  • Number of Transceivers
  • 8
  • Data Rate
  • 10 Mb/s, 100 Mb/s
  • Supply Voltage Max
  • 2.3 V
  • Supply Voltage Min
  • 2 V
  • Maximum Operating Temperature
  • + 85 C
  • Package / Case
  • PQFP-208
  • Packaging
  • Tray
  • Ethernet Connection Type
  • 10Base-T, 100Base-FX, 100Base-TX
  • Maximum Supply Current
  • 1.32 A
  • Minimum Operating Temperature
  • - 40 C
  • Mounting Style
  • Type
  • Integrated Switch

KSZ8999I Datasheet

  • KSZ8999 Technical Documentation of Application Note

KSZ8999I Related speciale

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **laus***

    gute Abwicklung, gute Kommunikation, lange Lieferzeit, gerne wieder

  • Ratings
  • Please rate the product!
Spedizione Di più
Estimated Delivery Time: Apr 05 - Apr 10 days (choose Expedited at checkout).

Spedizione & Pagamento


  • Tipo di spedizione
  • Tassa della nave
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Condizioni di pagamento
  • Fee mano
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

Forniamo prodotti di alta qualità, un servizio attento e post-vendita di garanzia

  • Abbiamo ricca di prodotti, in grado di soddisfare le diverse esigenze.

    Abbiamo ricca di prodotti, in grado di soddisfare le diverse esigenze.

  • Quantità di ordine minimo comincia da 1pcs.

    Quantità di ordine minimo comincia da 1pcs.

  • Più basso tassa di spedizione internazionale parte da US $ 2,00.

    Più basso tassa di spedizione internazionale parte da US $ 2,00.

  • 90 giorni di garanzia di qualità per tutti i prodotti.

    90 giorni di garanzia di qualità per tutti i prodotti.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

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.

Jotrin ESD packing


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.


Q: How does Jotrin guarantee that KSZ8999I is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their KSZ8999I devices; we pay more attention to the channels and quality of KSZ8999I products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of KSZ8999I chips? Including MICROCHIP original factory information, Specialized ICs application, KSZ8999I pictures?
You can use Jotrin's intelligent search engine, or filter by Ethernet Switch Products category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's KSZ8999I price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for KSZ8999I, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of KSZ8999I?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the KSZ8999I we delivered, we will accept the replacement or return of the KSZ8999I only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of KSZ8999I.
(3)The KSZ8999I is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as KSZ8999I datasheet pdf, KSZ8999 pin diagram?
Need any After-Sales service, please feel free contact us:

Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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