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DS21Q58L Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS21Q58L Datasheet(HTML) 1 Page - Dallas Semiconductor |
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1 / 74 page  1 of 74 REV: 012104 Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. GENERAL DESCRIPTION The DS21Q58 E1 quad transceiver contains all the necessary functions for connecting to four E1 lines. The DS21Q58 is a direct replacement for the DS21Q50, with the addition of signaling access and improved interrupt handling. It is composed of a line interface unit (LIU), framer, and a TDM backplane interface, and is controlled through an 8-bit parallel port configured for Intel or Motorola bus operations or serial port operation. APPLICATIONS DSLAMs Routers IMA and WAN Equipment PIN CONFIGURATION FEATURES § Four Complete E1 (CEPT) PCM-30/ISDN-PRI Transceivers § Pin Compatible with the DS21Q50 and DS21Q59 § Short-Haul Line Interfaces § 32-Bit or 128-Bit Crystal-Less Jitter Attenuator § Frames to FAS, CAS, and CRC4 Formats § CAS/CCS Signaling Support § 4MHz/8MHz/16MHz Clock Synthesizer § Flexible System Clock with Automatic Source Switching on Loss-of-Clock Source § Two-Frame Elastic-Store Slip Buffer on the Receive Side § Interleaving PCM Bus Operation Up to 16.384MHz § Configurable Parallel and Serial Port Operation § Detects and Generates Remote and AIS Alarms § Fully Independent Transmit and Receive Functionality § Four Separate Loopback Functions § PRBS Generation/Detection/Error Counting § 3.3V Low-Power CMOS § Large Counters for Bipolar and Code Violations, CRC4 Codeword Errors, FAS Word Errors, and E Bits § Eight Additional User-Configurable Output Pins § 100-Pin (14mm x 14mm) LQFP Package ORDERING INFORMATION PART TEMP RANGE PIN-PACKAGE DS21Q58L 0°C to +70°C 100 LQFP DS21Q58LN -40°C to +85°C 100 LQFP LQFP 1 100 Dallas Semiconductor DS21Q58 TOP VIEW DS21Q58 E1 Quad Transceiver www.maxim-ic.com Go to www.maxim-ic.com/telecom for a complete list of Telecommunications data sheets, evaluation kits, application notes, and software downloads. |
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