Four-Port Cell/Packet over T1/E1/J1 Single-Chip Transceiver
DALLAS, TX—February 15, 2005—Dallas Semiconductor (NASDAQ: MXIM) introduces the DS26556, the only multiport T1/E1/J1 transceiver available with a cell/packet/TDM interface. This device contains all the line interface and framer functions necessary to connect four T1, E1, or J1 lines. No relays or switched external components are required, and a single clock supports all standard T1, E1, or J1 operating modes. This device supports UTOPIA (Level 2 and 3) and POS/PHY™ (Level 2 and 3) system interfaces, as well as a TDM backplane interface that can operate at bus rates up to 16.384MHz. Additional features include software-selectable receive and transmit termination, one HDLC controller per port, programmable bit error-rate testing (BERT), and optional crystal-less jitter attenuation.
The DS26556 is available in a small 17mm x 17mm BGA package and is available in commercial (0°C to +70°C) and industrial (-40°C to +85°C) operating temperature ranges. Prices start at $44.00 (1000-up, FOB USA). Evaluation kits are available.
POS/PHY and POS/PHY Level 3 are trademarks of PMC-Sierra, Inc.
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