T1/CEPT Elastic Store

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The DS2175 is a low-power CMOS elastic-store memory optimized for use in primary rate telecommunications transmission equipment. The device serves as a synchronizing element between async data streams and is compatible with North American (T1-1.544MHz) and European (CEPT-2.048MHz) rate networks. The chip has several flexible operating modes which eliminate support logic and hardware currently required to interconnect parallel or serial TDM backplanes. Application areas include digital trunks, drop and insert equipment, digital cross-connects (DCC), private network equipment, and PABX-to-computer interfaces such as DMI and CPI.
DS2175, DS2175N: Block Diagram DS2175, DS2175N: Block Diagram Enlarge+

Key Features

  • Rate buffer for T1 and CEPT transmission systems
  • Synchronizes loop-timed and system-timed data streams on frame boundaries
  • Ideal for T1 (1.544 MHz) to CEPT (2.048MHz), CEPT to T1 interfaces
  • Supports parallel and serial backplanes
  • Buffer depth is 2 frames
  • Comprehensive on-chip "slip" control logic
    • Slips occur only on frame boundaries
    • Outputs report slip occurrences and direction
    • Align feature allows buffer to be recentered at any time
    • Buffer depth easily monitored
  • Compatible with DS2180A T1 and DS2181A CEPT Transceivers
  • Industrial temperature range of -40°C to +85°C available, designated DS2175N

Quality and Environmental Data

Request Reliability Report for: DS2175N 
Lead-Free Package Tin (Sn) Whisker Reports
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.

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