PXB 4219 E V3.4

Overview

The PXB 4219E V3.4 is an Interworking Element (IWE8) designed for wired communications, specifically handling eight E1/T1 lines. It facilitates the interworking between TDM-based circuits and Asynchronous Transfer Mode (ATM) networks. The device supports both ATM mode and AAL1/AAL2 modes for Circuit Emulation Service (CES). Key functional blocks include ATM transmit/receive functions, AAL segmentation and reassembly, an Internal Clock Recovery Circuit (ICRC), and OAM processing. It interfaces with host systems via UTOPIA, IMA, and a generic microprocessor interface.

Feature Summary

• Supports eight E1 or T1 line connections
• Handles ATM and AAL1/AAL2 Circuit Emulation Services
• Integrated Internal Clock Recovery Circuit (ICRC)
• Interfaces: UTOPIA, IMA, Generic Framer Interface (FAM/GIM/SYM)

Applications

• Line cards in telecommunications equipment
• Echo cancellers
• TDM to ATM network interworking

Procurement Notes

Verify the specific revision suffix against the datasheet edition dated January 2003. Confirm that the 256-BGA package matches the PG-BGA-256-1 designation. Ensure compatibility with required voltage levels and clock frequencies specified in the electrical characteristics section of the official documentation.

Selection Notes

Select this component when designing systems requiring interworking between eight E1/T1 channels and ATM infrastructure. Consider the internal memory requirements for segmentation buffers and the need for external RAM if statistics counters or large buffer sizes are required. Verify support for specific framer interface modes like FAM or GIM based on the upstream hardware.

Part Context

This part belongs to the PXB 42xxE series from Infineon Technologies, published under the IWE8 product family. Version 3.4 represents a specific hardware revision documented in the DS3 data sheet from January 2003. It is distinct from the PXB 4220E and PXB 4221E variants which may have different pinouts or feature sets.

Replacement Considerations

Consult the official datasheet section detailing differences between PXB 4219E, PXB 4220E, and PXB 4221E to determine if alternative parts within the same series are functionally compatible without hardware modifications.