DS21554

3.3V/5V E1 Single Chip Transceivers (SCT)


Please check latest availability status for a specific part variant.

Description

The DS21354/DS21554 single-chip transceivers (SCTs) contain all the necessary functions to connect to E1 lines. The devices are upward-compatible versions of the DS2153 and DS2154 SCTs. The on-board clock/data recovery circuitry coverts the AMI/HDB3 E1 waveforms to an NRZ serial stream. Both devices automatically adjust to E1 22AWG (0.6mm) twistedpair cables from 0 to over 2km in length. They can generate the necessary G.703 waveshapes for both 75Ω coax and 120Ω twisted cables. The on-board jitter attenuator (selectable to either 32 bits or 128 bits) can be placed in either the transmit or receive data paths. The framer locates the frame and multiframe boundaries and monitors the data stream for alarms. It is also used for extracting and inserting signaling data, Si, and Sa-bit information. The on-board HDLC controller can be used for Sa-bit links or DS0s. The devices contain a set of internal registers that the user can access to control the operation of the units. Quick access through the parallel control port allows a single controller to handle many E1 lines. The devices fully meet all the latest E1 specifications, including ITU-T G.703, G.704, G.706, G.823, G.732, and I.431, ETS 300 011, 300 233, and 300 166, as well as CTR12 and CTR4.
DS21354, DS21554: Pin Configuration DS21354, DS21554: Pin Configuration Enlarge+

Key Features

  • Complete E1 (CEPT) PCM-30/ISDN-PRI Transceiver Functionality
  • On-Board Long- and Short-Haul Line Interface for Clock/Data Recovery and Waveshaping
  • 32-Bit or 128-Bit Crystal-Less Jitter Attenuator
  • Frames to FAS, CAS, CCS, and CRC4 Formats
  • Integral HDLC Controller with 64-Byte Buffers Configurable for Sa Bits, DS0, or Sub-DS0 Operation
  • Dual Two-Frame Elastic Store Slip Buffers that can Connect to Asynchronous Backplanes up to 8.192MHz
  • Interleaving PCM Bus Operation
  • 8-Bit Parallel Control Port that can be used Directly on Either Multiplexed or Nonmultiplexed Buses (Intel or Motorola)
  • Extracts and Inserts CAS Signaling
  • Detects and Generates Remote and AIS Alarms
  • Programmable Output Clocks for Fractional E1, H0, and H12 Applications
  • Fully Independent Transmit and Receive Functionality
  • Full Access to Si and Sa Bits Aligned with CRC-4 Multiframe
  • Four Separate Loopback Functions for Testing Functions
  • Large Counters for Bipolar and Code Violations, CRC4 Codeword Errors, FAS Word Errors, and E Bits
  • IEEE 1149.1 JTAG-Boundary Scan Architecture
  • Pin Compatible with DS2154/52/352/552 SCTs
  • 3.3V (DS21354) or 5V (DS21554) Supply; Low- Power CMOS
  • 100-pin LQFP package (14mm x 14mm)

Technical Documents

App Note 3760 Interleaved Bus Operation
App Note 3547 Measuring Return Loss on T3/E3/STS-1 LIUs
App Note 3349 T1/E1 Loopback Operation for Maxim T1/E1/J1 Transceivers
App Note 3208 Elastic Store Operation
App Note 3121 Selecting a T1/E1/J1 Single-Chip Transceiver
App Note 405 Power-Fault Protection Layout
App Note 394 HDLC Configuration of Framers and Transceivers
App Note 393 E1 Operation of Dallas Semiconductor Framers and SCTs
App Note 391 NRZ Applications
App Note 388 Hitless Protection Switching with 1+1 Redundancy
App Note 381 Interfacing the DS2155 to the MPC8260
App Note 379 Conversion Between T1 and E1
App Note 374 DS2155 vs. DS21x5y: Software and Hardware Considerations
App Note 370 Using RCLK in a BITS/SSU Application
App Note 361 DS21354/DS21554 vs. DS2154 Single Chip Transceivers
App Note 355 DS21Q4x, DS215x, and DS21x5y Test Registers
App Note 351 T1/E1 and T3/E3 Transformer Selection Guide
App Note 342 T1/E1 Framer Initialization and Programming
App Note 340 DS2153 Programming, ETS 300-011 Remote Alarm Generation
App Note 336 Transparent Operation on T1, E1 Framers and Transceivers
App Note 325 DS2151, DS2152, DS2153, DS2154 Dallas Single Chip Transceiver Crystal Selection Guide
App Note 324 T1/E1 Network Interface Design
App Note 319 DS2152, DS2154, DS21x5Y, and DS2155 Interfacing to the MC68360 (QUICC32)
App Note 309 Interfacing to the Fractional T1 and E1
App Note 307 DS2152, DS2154, DS2151, DS2153, DS21X5Y and DS2155 Three Channel Drop and Insert

Quality and Environmental Data

Product Reliability Reports: DS21554.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Development Kit

CAD Symbols and Footprints

  • DS21554L+
  • DS21554LB+
  • DS21554LBN+
  • DS21554LN+
  • 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 >

     
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    Type ID PDF Title
    App Note 3760 Interleaved Bus Operation
    App Note 3547 Measuring Return Loss on T3/E3/STS-1 LIUs
    App Note 3349 T1/E1 Loopback Operation for Maxim T1/E1/J1 Transceivers
    App Note 3208 Elastic Store Operation
    App Note 3121 Selecting a T1/E1/J1 Single-Chip Transceiver
    App Note 405 Power-Fault Protection Layout
    App Note 394 HDLC Configuration of Framers and Transceivers
    App Note 393 E1 Operation of Dallas Semiconductor Framers and SCTs
    App Note 391 NRZ Applications
    App Note 388 Hitless Protection Switching with 1+1 Redundancy
    App Note 381 Interfacing the DS2155 to the MPC8260
    App Note 379 Conversion Between T1 and E1
    App Note 374 DS2155 vs. DS21x5y: Software and Hardware Considerations
    App Note 370 Using RCLK in a BITS/SSU Application
    App Note 361 DS21354/DS21554 vs. DS2154 Single Chip Transceivers
    App Note 355 DS21Q4x, DS215x, and DS21x5y Test Registers
    App Note 351 T1/E1 and T3/E3 Transformer Selection Guide
    App Note 342 T1/E1 Framer Initialization and Programming
    App Note 340 DS2153 Programming, ETS 300-011 Remote Alarm Generation
    App Note 336 Transparent Operation on T1, E1 Framers and Transceivers
    App Note 325 DS2151, DS2152, DS2153, DS2154 Dallas Single Chip Transceiver Crystal Selection Guide
    App Note 324 T1/E1 Network Interface Design
    App Note 319 DS2152, DS2154, DS21x5Y, and DS2155 Interfacing to the MC68360 (QUICC32)
    App Note 309 Interfacing to the Fractional T1 and E1
    App Note 307 DS2152, DS2154, DS2151, DS2153, DS21X5Y and DS2155 Three Channel Drop and Insert

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