The IDT1893AF is a lower cost, re-packaged version of the IDT1893Y-10. The IDT1893AF is a fully integrated, Physical Layer device (PHY) that is compliant with both the 10Base-T and 100Base-TX CSMA/CD Ethernet Standard, ISO/IEC 8802-3. The IDT1893AF uses the same proven silicon as the IDT1893Y-10 but offers a lower cost solution by using a lower cost 300 mil. 48-lead SSOP package. The IDT1893AF uses the same twisted-pair transmit and receive circuits as the IDT1893Y-10, and the same recommended board layout techniques apply to the IDT1893AF. The IDT1893AF is intended for Node applications using the standard MII interface to the MAC.


  • Single 3.3V power supply
  • Supports category 5 cables with attenuation in excess of 24dB at 100 MHz.
  • DSP-based baseline wander correction to virtually eliminate killer packets
  • Low-power, 0.35-micron CMOS (typically 400 mW)
  • Single-chip, fully integrated PHY provides PCS, PMA, PMD, and AUTONEG sublayers of IEEE standard
  • 10Base-T and 100Base-TX IEEE 802.3 compliant
  • Clock or crystal supported
  • Media Independent Interface (MII) supported
  • Managed or Unmanaged Applications
  • 10M or 100M Half and Full Duplex Modes
  • Auto-Negotiation with Parallel detection for Legacy products
  • Fully integrated, DSP-based PMD includes:
  • – Adaptive equalization and baseline wander correction– Transmit wave shaping and stream cipher scrambler– MLT-3 encoder and NRZ/NRZI encoderLoopback mode for Diagnostic Functions
  • Small footprint 48-pin 300 mil SSOP package.
  • Available in Industrial Temperature and Lead Free packaging.

Product Options

Orderable Part ID Part Status Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete 48 I Yes Tube
Obsolete 48 I Yes Reel
Obsolete 48 C Yes Tube
Obsolete 48 C Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
1893AF Datasheet Datasheet PDF 1.20 MB
PDN# : CQ-15-01 (R1) Quarter PDN for Declined Market Product Discontinuation Notice PDF 550 KB
PDN# : CQ-15-01 Quarter PDN for Declined Market Product Discontinuation Notice PDF 547 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB