PM6110B-FEI

Overview

The PM6110B-FEI is a member of the Microchip META-DX1 family, functioning as a multi-purpose Ethernet MAC/PHY. It integrates 48 high-speed SerDes (24 host-side and 24 line-side) supporting both 56G PAM4 and 28G NRZ signaling to achieve up to 1.2 Tbps capacity. The device features analog and PCS retiming, forward/reverse gearboxing, hitless 2:1 multiplexing, and flexible crosspoint connectivity. Key differentiators include integrated MACsec encryption engines for frame-level security and Flexible Ethernet (FlexE) support for data center interconnect optimization.

Feature Summary

• Integrates 48 SerDes with 1.2T throughput capability using 56G PAM4 or 28G NRZ interfaces
• Includes hardware MACsec engines for line-speed Ethernet encryption
• Supports FlexE for efficient bandwidth utilization in DCI applications
• Provides Class C/D PTP timestamping accuracy via IEEE 1588v2
• Features hitless 2:1 mux mode for working/protect switch redundancy

Applications

• High-density Ethernet line cards for routers and switches
• Data center and service provider infrastructure requiring MACsec and FlexE
• Working/protect switches utilizing hitless multiplexing
• Ethernet transponders and muxponders with OTN retiming
• Encryption appliances handling WAN security threats

Procurement Notes

Verify the specific suffix 'B' against the official datasheet to confirm package type and temperature range variations within the META-DX1 family. Ensure compatibility with the required SDK APIs for development. Confirm availability status directly with Microchip Technology or authorized distributors, as supply levels may vary by region.

Selection Notes

Select the PM6110B-FEI when both MACsec encryption and FlexE functionality are required simultaneously. Compare against the PM6108B-FEI if FlexE is unnecessary, or the PM6104 if neither FlexE nor MACsec is needed. Consider the 1.2T capacity for 10T+ line card designs and verify that the BBGA-1221 package fits the target board layout constraints.

Part Context

The PM6110B-FEI belongs to the META-DX1 family, which represents Microchip's purpose-built Ethernet PHYs derived from the former Microsemi Meta line. Unlike previous Digi-based products, this family omits OTN framing but supports advanced features like Interlaken and MACsec. It utilizes a 16nm design process to deliver high port density and low power consumption compared to prior generations.

Replacement Considerations

The PM6108B-FEI serves as a functional substitute if FlexE support is not required. The PM6104B-FEI is an option if neither FlexE nor MACsec is needed. All variants share the same package and SDK compatibility.