PX1012A-EL1/G,551

Specialized Overview

The PX1012A-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 parallel data interface (PXPIPE) running at 250 MHz with SSTL_2 signaling. The device includes clock and data recovery, 8b/10b encoding, and elastic buffering. It dissipates less than 300 mW in L0 mode and supports power states L0, L0s, and L1. Operating temperature ranges from -40 °C to +85 °C for the industrial variant. It utilizes a lead-free LFBGA81 package.

Specialized Feature Summary

• Compliant with PCI Express Base Specification 1.1 standards
• Supports advanced power management across multiple low-power states
• Includes built-in JTAG boundary scan and self-test capabilities

Specialized Applications

• PCI Express link interfaces in FPGA-based designs
• High-speed serial communication systems requiring standalone PHY solutions
• Industrial embedded applications needing wide temperature operation

Specialized Procurement Notes

Verify that the ordering suffix /G confirms Pb-free solder composition and EL1 indicates the LFBGA81 package type. Confirm the 'I' designation if industrial temperature range (-40 °C to +85 °C) is required, as standard versions may differ. Ensure compatibility with the specific MAC layer's PXPIPE implementation before procurement.

Specialized Selection Notes

Select this component when a standalone PCIe PHY is needed for off-chip integration with FPGAs or ASICs. Verify voltage requirements for VDDD1 (3.3V), VDDD2 (2.5V), and core supplies (1.25V). Ensure the design accommodates the 81-ball LFBGA81 footprint and provides the necessary 100 MHz reference clock input.

Specialized Part Context

This part belongs to the PX1011A/PX1012A family of high-performance, low-power single-lane PCI Express PHYs. It is designed to handle low-level protocol and signaling, providing superior performance to MAC layer devices through integrated SerDes and analog buffers.

Specialized Replacement Considerations

The PX1011A-EL1/G serves as a direct functional substitute within the same family. Both share identical pinouts, specifications, and package types, differing primarily in internal silicon revisions or minor manufacturing lot variations rather than architectural changes.

Specialized 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 device handle clock tolerance compensation?

It uses an elastic buffer capable of holding at least seven symbols to manage frequency differences and inserts or removes SKP symbols as needed.

What signaling standard does the PXPIPE interface use?

The interface uses 2.5 V SSTL_2 class I signaling compatible with FPGA I/O interfaces.