STLC61256 Datasheet | STMicroelectronics

Copper Wing12 .. ADSL Central Office (CO) Chipset: STLC61256/55 + STLC60454 + STLC60243 DATA BRIEF GENERAL DESCRIPTION The Copper Wing12 ADSL Chipset family targets a plete 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 - Copper Wing12 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 petitive 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 is able to guarantee high reach performance. STLC60454: 4 Ch ADSL/ADSL2+ AFE with integrated receiver and LP filters STLC60243: Dual channel Line Driver - Figure 1. Chipset Architecture Overview Flash ROM Host CPU SDRAM STLC60243 Dual Line Driver STLC60454 Quad AFE STLC61256 Twelve ADSL Transceiver with Per Flow STLC60454 Quad AFE STLC60454 Quad AFE ATM/ POS STM/ RMII/ SMII/ ATM Utopia In-Band Serial STLC60243 Dual Line Driver Serial Host interface REV. 1 1/8 June 2004 This is...