GENERAL DESCRIPTION
The XRT72L52, Two Channel DS3/E3 Framer IC 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. Further, the Framer is also designed to receive an inbound DS3/E3 Data Stream from the Remote Terminal Equipment and extract out the user data.

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.
• 1 Channel HDLC Controller - Tx and Rx
• Interfaces to all Popular Microprocessors
• Integrated Framer Performance Monitor
• Available in a 160 Pin PQFP package
• 3.3V Power Supply with 5V Tolerant I/O
• Operating Temperature -40°C to +85°C

APPLICATIONS
• Network Interface Units
• CSU/DSU Equipment.
• PCM Test Equipment
• Fiber Optic Terminals
• DS3/E3 Frame Relay Equipment