PEF 22554 E V3.1-G

Telecom Overview

The PEF22554EV3.1-G is a telecommunications interface integrated circuit manufactured by Infineon Technologies, belonging to the QuadFALC series. It functions as a quad-channel framer and line interface unit (LIU) designed for T1/E1/J1 network applications. The device supports data rates up to 2.048 Mb/s across four independent channels. It operates within dual power supply voltage ranges of 2.4 V to 4.5 V. The component is housed in an LBGA surface-mount package suitable for automated assembly.

Telecom Feature Summary

• Integrates four independent channel framer and line interface units for simultaneous T1/E1/J1 signal processing
• Supports standard telecom data rates including 2.048 Mb/s for E1 interfaces
• Compatible with dual voltage power domains ranging from 2.4 V to 4.5 V

Telecom Applications

• T1/E1/J1 network infrastructure equipment
• Telecommunications interface cards requiring multi-channel framing
• Line interface units for digital transmission systems

Telecom Procurement Notes

This component is officially listed as obsolete or discontinued by the manufacturer. Availability is restricted, and sourcing may require verification through authorized distributors or secondary markets. Buyers should confirm current stock status and authenticity before procurement due to the end-of-life status.

Telecom Selection Notes

Engineers selecting this part must account for its discontinued status and limited future availability. Design-in decisions should consider long-term supply chain stability. Verification of the specific EV3.1 revision against existing board designs is necessary to ensure pinout and electrical compatibility with legacy implementations.

Telecom Part Context

The PEF22554EV3.1-G is part of Infineon's broader portfolio of telecom interface solutions, specifically the QuadFALC family. This series provides integrated framing and line interface capabilities for digital carrier networks. The device represents a specialized solution for handling multiple T1/E1/J1 channels within a single compact package.