FEATURES
• Monolithic, SONET/SDH Payload
   Extractor/Aligner for use in STS-1
   (STM-0/AU3), STS-3 (STM-1/AU3) or
   STS-3c (STM-1/AU4) interface
   applications, operating at serial interface
   speeds up to 155.52 Mbit/s.
• Provides integrated clock recovery and
   clock synthesis to allow a direct interface
   to optical modules.
• Provides termination for SONET Section
   and Line, SDH Regenerator Section and
   Multiplexer Section transport overhead,
   and Path overhead of one or three
   STS-1 (STM-0/AU3) paths or a single
   STS-3c (STM-1/AU4) path.
• Maps one or three STS-1 (STM-0/AU3)
   payloads or a single STS-3c (STM-1/
   AU4) payload to system timing
   reference, accommodating
   plesiochronous timing offsets between
   the references through pointer
   processing.
• Maps three DS3 bit streams into a
   STS-3 (STM-1/AU3) frame.
• Maps three serial data streams (e.g.,
   Frame Relay, PPP, or Ethernet
   Payload) into a single serial data
   stream into a STS-1 (STM-0/AU3) or
   STS-3c (STM-1/AU4) payload.
• Supports line loopback from the line
   side receive stream to the transmit
   stream and diagnostic loopback from a
   Telecom ADD bus interface to a
   Telecom DROP bus interface.
• Provides a standard 5-signal P1149.1
   JTAG test port for boundary scan
   board test purposes.
• Provides a generic 8-bit
   microprocessor bus interface for
   configuration, control, and status
   monitoring.
• Low power, +5 V, CMOS technology.
   Device has PECL- and TTLcompatible inputs and TTL outputs.
• Available in a 256-pin, Super Ball Grid
   Array (SBGA) package.
• Supports industrial temperature range
   (-40°C to 85°C) operation.

BACKPLANE/DEVICE MODES
• Telecom Byte.
• Telecom Nibble.
• Telecom Serial.
• Datacom Byte.
• Datacom Nibble.
• Datacom Serial.
• Datacom T3.

APPLICATIONS
• SONET/SDH Add/Drop Multiplexers
• SONET/SDH Terminal Multiplexers
• SONET/SDH Digital Cross-Connects
• Channelized Routers and Switches
• Packet Over SONET Router and Switches