PM5326H-FXI

Telecom Overview

The PM5326H-FXI is a dual SONET/SDH framer and aggregator designed for channelized STS-192/STM-64 and STS-48/STM-16 applications. It provides an aggregate capacity of 20 Gbit/s, with each internal framer independently configurable to support one high-rate stream or four lower-rate streams. The device interfaces via OIF SFI-4 standards and supports Automatic Protection Switching (APS). Key features include overhead processing, BIP-8 error detection, and independent Memory Switching Units for traffic grooming.

Telecom Feature Summary

• Dual-framer architecture supporting up to 20 Gbit/s aggregate throughput
• Configurable line-side connections for OC-192 or OC-48 signals
• Integrated Automatic Protection Switching (APS) capabilities
• Independent Memory Switching Units for time-slot interchange and muxing

Telecom Applications

• Multi Service Provisioning Platforms (MSPP)
• Sub Wavelength Cross Connects
• Add/Drop Multiplexers
• DWDM Platforms
• Channelized Routers and Multi Service Switches

Telecom Procurement Notes

Verify the manufacturer origin carefully, as PMC-Sierra was acquired by Microchip Technology. Ensure the specific suffix matches your board design requirements. Confirm that the package type aligns with your PCB layout constraints before finalizing orders.

Telecom Selection Notes

Select this component when designing systems requiring high-density SONET/SDH aggregation. Evaluate the need for dual-framer independence versus single-framer configurations. Consider the power consumption profile associated with the 1.2 V core and I/O voltage levels during system planning.

Telecom Part Context

This part belongs to the ARROW series of transport framers. It serves as a critical interface between optical line cards and service switching fabrics in telecommunications infrastructure. The device simplifies network management by handling complex framing and protection switching tasks internally.

Telecom Replacement Considerations

Check for updated revisions from Microchip Technology following the acquisition of PMC-Sierra. Verify pin-to-pin compatibility if substituting with other devices in the same family.