PX1011BI-EL1/G,551

Overview

The PX1011BI-EL1/G,551 is a single-lane PCI Express electrical PHY compliant with Base Specification Rev. 1.0a and 1.1. It operates at 2.5 Gbit/s using an 8-bit PXPIPE interface running at 250 MHz with SSTL_2 signaling. The device supports industrial temperature range (-40°C to +85°C) and dissipates less than 300 mW in L0 mode. It requires three digital supply voltages: 3.3 V for JTAG I/O, 2.5 V for SSTL_2 I/O, and 1.2 V for the core. The package is LFBGA81 (9x9 mm).

Feature Summary

• Compliant with PCI Express Base Specification 1.1 for single lane operation.
• Includes Clock and Data Recovery (CDR), 8b/10b encoding, and elastic buffer.
• Supports advanced power management states including L0, L0s, and L1.
• Features source synchronous clocking for simplified timing closure.

Applications

• PCI Express link interfaces for FPGA-based systems.
• Industrial embedded applications requiring extended temperature ranges.
• Low-power PCIe endpoint or root complex designs.

Procurement Notes

Verify the ordering suffix 'G' indicates lead-free packaging and 'I' confirms the industrial temperature grade. Confirm the specific tape-and-reel quantity associated with the ',551' suffix if required by your assembly process. Ensure the component matches the LFBGA81 footprint dimensions of 9 x 9 mm.

Selection Notes

Select this component when a standalone PCIe PHY is needed for FPGA integration rather than an integrated MAC solution. Ensure the design accommodates the separate voltage domains (1.2V, 2.5V, 3.3V) and the requirement for a 100 MHz external reference clock. Verify that the host system supports the PXPIPE interface protocol.

Part Context

This part belongs to the NXP PX1011B family of standalone PCIe PHYs. The 'I' suffix specifically denotes the industrial temperature variant (-40°C to +85°C), distinguishing it from the commercial version (0°C to +70°C). The 'G' suffix indicates lead-free solder composition.

Replacement Considerations

The PX1011B-EL1/N is the leaded equivalent. The PX1011B-EL1/Q900 is the automotive AEC-Q100 compliant version. Direct functional replacement within the same package is limited to these variants.

FAQ

What is the maximum power dissipation in normal operation?

The device dissipates less than 300 mW in the L0 normal operational state.

How does the PXPIPE interface differ from standard PIPE?

PXPIPE adds source synchronous clocks for transmit and receive data to simplify timing closure for off-chip applications.

What reference clock frequency is required?

A 100 MHz external reference clock with ±300 ppm tolerance is required.