STLC60454

CopperWing12 www.DataSheet4U.com ADSL Central Office (CO) Chipset: STLC61256/55 + STLC60454 + STLC60243 DATA BRIEF 1 GENERAL DESCRIPTION The CopperWing12 ADSL Chipset family targets a complete set of solution for Central Office (CO) ADSL technology integrating also processing and management capability to provide the best solution for ATM/IP DSLAM, ATM/IP mini DSLAM and "Pizza" boxes. The chipset integrates all ADSL/ ADSL2+ functions from ATM/IP interfaces to the line in three devices: ■ Two data pump chip options: – STLC61255: 12 channels ATM ADSL Data Pump – STLC61256: 12 Channels ATM/IP ADSL data Pump with embedded Cell Processor ■ CopperWing12 chipset family provides Ethernet and ATM interfaces to fit IP and ATM based Remote Unit or CO line cards; it provides also a general purpose controller to allow the development of controller-less line cards. The Modem Control Software runs entirely on the DMT Transceiver (no external memory needed for Interleave memory nor modem SW): the line card host controller is in charge only of high-level management operation. The chipset is able to support not only the current ADSL standards, but also ADSL2 and ADSL+ (12 channels). With only 1 square inches and less than 1 Watt per channel (in ADSL mode, 1.15W/line in ADSL+ mode), the Copperwing12 chipset is one of the most competitive solutions for CO ADSL application. The chip set supports also ADSL+ mode to deliver higher bit rate (24Mb/s) on short loops while with Reach Extended ADSL i...