GENERAL DESCRIPTION

The XRT72L54, 4 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 IC 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.

• 6 Channel HDLC Controller - Tx and Rx

• Interfaces to all Popular Microprocessors

• Integrated Framer Performance Monitor

• Available in a 272 Ball PBGA package

• 3.3V Power Supply, 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