This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Orders Over

Get a $50 Discount !

Renesas 1894K-40LFT

Ethernet ICs 3.3V 10/100 PHY RMII

ISO14001 ISO9001 DUNS

Brands: Renesas Technology Corp

Mfr.Part #: 1894K-40LFT

Datasheet: 1894K-40LFT Datasheet (PDF)

Package/Case: 40-VFQFN

Product Type: Controllers

RoHS Status:

Stock Condition: 2,002 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

Quick Quote

Please submit RFQ for 1894K-40LFT or email to us: Email: [email protected], we will contact you within 12 hours.

1894K-40LFT General Description

The IDT1894-40LFT is a versatile and efficient PHY device designed for low-power applications in Ethernet networks. Compliant with the ISO/IEC 10Base-T and 100Base-TX standards, this PHY supports CSMA/CD protocols for reliable data transmission. Its Auto-MDIX feature ensures seamless connectivity by automatically detecting and correcting crossover errors in the network wiring. The integration of Digital-Signal Processing technology in the IDT1894-40LFT enhances its performance in transmitting and receiving data, making it suitable for MII and Node applications


  • Supports category 5 cables with attenuation in excess of 24dB at 100 MHz.
  • Single-chip, fully integrated PHY provides PCS, PMA, PMD, and AUTONEG sub layers functions of IEEE standard.
  • 10Base-T and 100Base-TX IEEE 8802.3 compliant
  • MIIM (MDC/MDIO) management bus for PHY register configuration
  • RMII interface support with external 50 MHz system clock
  • Single 3.3V power supply
  • Highly configurable
  • Media Independent Interface (MII)
  • Auto-Negotiation with Parallel detection
  • Node applications, managed or unmanaged
  • 10M or 100M full and half-duplex modes
  • Loopback mode for Diagnostic FunctionsAuto-MDI/MDIX crossover correction
  • Low-power CMOS (typically 300 mW)
  • Power-Down mode typically 21mW
  • Clock and crystal supported
  • Interrupt pin option
  • Fully integrated, DSP-based PMDAdaptive equalization and baseline-wander correction
  • Transmit wave shaping and stream cipher scrambler
  • MLT-3 encoder and NRZ/NRZI encoder
  • Single power supply (3.3 V)
  • Built-in 1.8 V regulator for core
  • Available in 32-pin (5mm x 5mm) QFN package, Pb-free
  • Available in Industrial Temp and Lead Free


Parameter Value Parameter Value
Pin Count 41 Package Category Quad Flat No-Lead
Released Date Jan 28, 2020


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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


Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US.00 banking fee.
Money Gram Money Gram charge US$0.00 banking fee.


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.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • 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.

  • ESD
  • ESD


Renesas Technology Corp



Renesas Technology Corp



Renesas Technology Corp



Renesas Technology Corp



Renesas Technology Corp



Renesas Technology Corp



Renesas Technology Corp

We provide high quality products, thoughtful service and after sale guarantee

  • Product

    We have rich products, can meet your various needs.

  • quantity

    Minimum order quantity starts from 1pcs.

  • shipping

    Lowest international shipping fee starts from $0.00

  • guarantee

    365 days quality guarantee for all products

Ratings and Reviews

Please rate the product !
Please enter a comment

Please submit comments after logging into your account.