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FEATURES

? Single chip quad ATM and POS UserNetwork Interface operating at 622 Mbit/s.

? Implements the ATM Forum User Network Interface Specification and the ATM physical layer for Broadband ISDN according to CCITT Recommendation I.432.

? Implements the Point-to-Point Protocol (PPP) over SONET/SDH specification according to RFC 2615(1619)/1662 of the PPP Working Group of the Internet Engineering Task Force (IETF).

? Processes four bit-serial 622 Mbit/s STS-12c (STM-4-4c) data streams with on-chip clock and data recovery and clock synthesis.

? Complies with Bellcore GR-253-CORE jitter tolerance, jitter transfer and intrinsic jitter criteria.

? Each channel provides termination for SONET Section, Line and Path overhead or SDH Regenerator Section, Multiplexer Section and High Order Path overhead.

? Provides UTOPIA Level 3 32-bit wide System Interface (clocked up to 104 MHz) with parity support for ATM applications.

? Provides SATURN POS-PHY Level 3? 32-bit System Interface (clocked up to 104 MHz) for Packet over SONET (POS), or ATM applications.

? Supports line loopback from the line side receive stream to the transmit stream and diagnostic loopback from the line side transmit stream to the line side receive stream interface.

? Provides support for automatic protection switching including a bidirectional 4-bit PECL 622 MHz port for external APS with mate device.

? Built-in APS cross-connect for internal and external 1+1 and 1:n protection switching.

? Provides a standard five signal IEEE 1149.1 JTAG test port for boundary scan board test purposes.

? Provides a generic 16-bit microprocessor bus interface for configuration, control, and status monitoring.

? Low power 2.5 V CMOS core logic with 3.3 V CMOS/TTL compatible digital inputs and digital outputs. PECL inputs and outputs are 3.3 V compatible.

? Industrial temperature range (-40° C to +85° C).

? 520 pin SBGA package.

? Pin and software compatible with PM5382 S/UNI-16x155.

APPLICATIONS

? ATM and Multiservice Switches, Routers, and Switch/Routers.

? SONET/SDH Add/Drop Multiplexers with data processing capabilities

? Uplink Cards.

? SONET/SDH ATM/POS Test Equipment.