Ethernet Over PDH Mapping Devices

Industry's First Carrier Ethernet Devices to Support Up to 16 T1/E1s or 8 DS3s with Over 400Mbps Throughput

Please check latest availability status for a specific part variant.


The DS33X162 family of semiconductor devices extend 10/100/1000Mbps Ethernet LAN segments by encapsulating MAC frames in GFP-F, HDLC, cHDLC, or X.86 (LAPS) for transmission over PDH/TDM data streams. The devices support the Ethernet over PDH (EoPDH) standards for the delivery of Ethernet Access Services, including eLAN, eLINE, and VLAN. The multiport devices support VCAT/LCAS for dynamic link aggregation. The serial links support bidirectional synchronous interconnect up to 52Mbps over xDSL, T1/E1/J1, T3/E3, or V.35/Optical.

The devices perform store-and-forward of frames with Ethernet traffic conditioning and bridging functions at wire speed. The programmability of classification, priority queuing, encapsulation, and bundling allows great flexibility in providing various Ethernet services. OAM flows can be extracted and inserted by an external processor to manage the Ethernet service.

The voice ports of the DS33W41 and DS33W11 easily connect to external codecs for integrated voice and data service applications.
DS33W11, DS33W41, DS33X11, DS33X161, DS33X162, DS33X41, DS33X42, DS33X81, DS33X82: Functional Diagram DS33W11, DS33W41, DS33X11, DS33X161, DS33X162, DS33X41, DS33X42, DS33X81, DS33X82: Functional Diagram Enlarge+

Key Features

  • 10/100/1000 IEEE 802.3 MAC (MII/RMII/GMII) with Autonegotiation and Flow Control
  • GFP-F/LAPS/HDLC/cHDLC Encapsulation
  • VCAT/LCAS Link Aggregation for Up to 16 Links
  • Supports Up to 200ms Differential Delay
  • Quality of Service (QoS) Support
  • VLAN, Q-in-Q, 802.1p, and DSCP Support
  • Ethernet Bridging and Filtering
  • Add/Drop OAM Frames from µP Interface
  • Traffic Shaping Through CIR/CBS Policing
  • External 256Mb, 125MHz DDR SDRAM Buffer
  • Parallel and SPI™ Microprocessor Interfaces
  • 1.8V, 2.5V, 3.3V Supplies
  • IEEE 1149.1 JTAG Support

Technical Documents

App Note 4233 Carrier Ethernet Service Demarcation in Optical Networks
App Note 4124 DS33X162 Product Family FAQ

Quality and Environmental Data

Product Reliability Reports: DS33X41.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • DS33X41
  • DS33X41+
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >


    Related Resources

    16-Bit, 5.9Gsps Interpolating and Modulating RF DAC with JESD204B Interface

    • Simplifies RF Design and Enables New Wireless Communication Architectures
    • Direct RF Synthesis of 600MHz Bandwidth Up to 2.8GHz
    • Highly Flexible and Configurable

    Type ID Title
    Evaluation Board5814DS33X11DK Demo Kit for the DS33X11
    Evaluation Board5727DS33X162DK Demo Kit for the DS33X162

    Electronics in Vehicles (ELIV) 2019
    10/16/2019 - 10/17/2019, Bonn, Germany
    The international VDI Congress ELIV (Electronics In Vehicles) is THE event for all experts in the field of electrical and electronical car engineering and integration of mechanical and electronical systems.