GENERAL DESCRIPTION
The XRT72L56, 6 Channel DS3/E3 Framer is designed to accept “User Data” from the Terminal Equipment and insert this data into the “payload” bitfields within an “outbound” DS3/E3 Data Stream.

FEATURES
• Transmits, Receives and Processes data in the DS3-C-bit Parity, DS3-M13, E3-ITU-T G.751 and E3-ITU-T G.832 Framing Formats.
• Per Channel High Speed HDLC Controllers.
• Interfaces to all Popular Microprocessors
• Extensive Performance Monitoring support.
• Available in a 388 Ball PBGA package
• 3.3V Power Supply with 5V Tolerant I/O
• Operating Temperature -40°C to +85°C

APPLICATIONS
• Digital Cross Connects
• CSU/DSU Equipment.
• ADD/Drop Multiplexers
• DS3/E3 Frame Relay Equipment