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Home > Products > Integrated Circuits (ICs) > Interface > Specialized

NXP Semiconductors PX1011BI-EL1/G,557

Name: PX1011BI-EL1/G,557
Brand: NXP Semiconductors
SKU: PX1011BI-EL1/G,557
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PX1011BI-EL1/G,557

Manufacturer:: NXP Semiconductors

Category:: Specialized

Package:: 81-LFBGA

Datasheet:: PX1011BI-EL1/G,557.pdf

Description:: IC INTFACE SPECIALIZED 81LFBGA

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Product details

Overview

PX1011BI-EL1/G,557 from NXP Semiconductors is a single-lane, 2.5 Gbit/s PCI Express stand-alone PHY IC for industrial applications (−40 °C to +85 °C), implementing full SerDes, 8b/10b encoding/decoding, CDR, elastic buffer, and receiver detection. It interfaces with MACs via an 8-bit, 250 MHz SSTL_2 PXPIPE interface and supports L0/L0s/L1 power states with <300 mW typical power dissipation in L0 mode.

For engineers reviewing the PX1011BI-EL1/G,557 datasheet, PX1011BI-EL1/G,557 pinout, PX1011BI-EL1/G,557 application, or PX1011BI-EL1/G,557 equivalent, key selection considerations include PCIe Base Spec 1.1 compliance, LFBGA81 package compatibility, industrial temperature operation, SSTL_2 I/O voltage requirements (2.5 V), and JTAG-based BIST for SerDes and I/O validation.

Technical Context

The PX1011BI-EL1/G,557 implements a complete PCIe physical layer with integrated Serializer/Deserializer (SerDes), Clock and Data Recovery (CDR) circuitry, and a digital PCS block performing 8b/10b encode/decode, word alignment, and elastic buffer management. Its PXPIPE interface extends Intel's PIPE v1.0 with source-synchronous TXCLK/RXCLK signals for timing closure in FPGA-based MAC implementations.

It supports full PCIe link training and status state machine (LTSSM) behavior across P0, P0s, and P1 power states, with hardware-assisted receiver detection, loopback, polarity inversion, and spread-spectrum clock tolerance (±300 ppm). The PHY uses three independent supply domains: 1.2 V core (VDDD3), 2.5 V SSTL_2 I/O (VDDD2), and dual analog supplies (1.2 V VDDA1 and 3.3 V VDDA2) for SerDes biasing and termination.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	2.5 Gbit/s serial line rate - enables PCIe x1 Gen 1 link operation with full protocol compliance.
Interface Standard	PCI Express Base Specification Rev. 1.1 - ensures interoperability with standard PCIe root complexes and endpoints.
Parallel Interface	8-bit PXPIPE at 250 MHz with SSTL_2 Class I signaling - provides FPGA-compatible timing margin and voltage levels.
Power Dissipation	<300 mW in L0 normal mode - reduces thermal load in dense embedded systems without active cooling.
Operating Temperature	−40 °C to +85 °C - qualified for industrial control, automation, and ruggedized computing environments.
Package	LFBGA81 (9 × 9 × 1.05 mm, SOT643-1) - surface-mountable, lead-free (SnAgCu), suitable for automated PCB assembly.
Reference Clock	100 MHz ±300 ppm with spread spectrum support - meets PCIe EMI reduction requirements and simplifies system clock design.

Pinout & Package

LFBGA81 package (SOT643-1), 9 mm × 9 mm × 1.05 mm body, 81-ball array, Pb-free (SnAgCu) solder balls. Ball pitch: 0.8 mm.

Pin/Terminal	Circuit Role	Design Meaning
RX_P / RX_N	Differential receive input pair	50 Ω on-chip termination; accepts 2.5 Gbit/s PCIe serial stream with electrical idle detection.
TX_P / TX_N	Differential transmit output pair	50 Ω on-chip termination; outputs compliant PCIe 2.5 Gbit/s differential signal with de-emphasis support.
TXDATA[7:0] / TXDATAK	Parallel transmit data inputs	8-bit + K-character input synchronized to TXCLK; drives SerDes after 8b/10b encoding.
RXDATA[7:0] / RXDATAK	Parallel receive data outputs	8-bit + K-character output synchronized to RXCLK; sourced post-8b/10b decode and elastic buffer alignment.
TXCLK / RXCLK	Source-synchronous clocks	250 MHz bidirectional clocks; TXCLK from MAC clocks inputs; RXCLK from PHY clocks outputs - eliminates global clock skew issues.
REFCLK_P / REFCLK_N	Differential reference clock input	100 MHz PCIe reference clock with 50 Ω on-chip termination; used for PLL generation of internal bit-rate and data clocks.
RESET_N	Active-low asynchronous reset	Must be held low until VDD/VDDD/VDDA supplies and REFCLK stabilize; 64 µs max internal stabilization time.
PWRDWN0 / PWRDWN1	Power state control inputs	2-bit encoded control (00b=P0, 01b=P0s, 10b=P1); enables hardware-managed low-power transitions per PCIe spec.
RXDET_LOOPB	Receiver detect / loopback command	Single-pin dual-function: asserted to initiate receiver presence check or internal SerDes loopback mode.
RXSTATUS[2:0]	3-bit status output bus	Encodes real-time conditions: receiver detect result (011b), SKP insert/remove, 8b/10b decode error, elastic buffer overflow/underflow, disparity error.

Key Features

Feature	Design Value
PCIe Gen 1 x1 PHY compliance	Fully implements PCIe Base Spec 1.1 physical layer functions including LTSSM, training sequences, and electrical idle handling - enables drop-in integration into PCIe-compliant systems.
Source-synchronous PXPIPE interface	Separate TXCLK and RXCLK signals eliminate setup/hold timing violations between MAC and PHY - critical for reliable operation with FPGA-based MACs.
Hardware-accelerated receiver detection	On-die logic performs full PCIe receiver detect sequence upon RXDET_LOOPB assertion - returns presence status via RXSTATUS within one clock cycle after PHYSTATUS pulse.
Real-time elastic buffer management	Automatically inserts/removes SKP ordered sets to compensate for ±600 ppm clock tolerance - maintains data integrity without MAC intervention during frequency drift.
JTAG + BIST support	IEEE 1149.1 boundary scan with built-in SerDes and I/O test controller - enables production-level validation and field diagnostics without external test equipment.

Applications

Industrial PLC Backplane Interconnect	Medical Imaging Data Acquisition
Use Scenario: High-reliability communication between CPU module and I/O expansion cards in programmable logic controllers operating in factory-floor environments with wide temperature swings and EMI. IC Role / Device Role / Timing Role: Stand-alone PCIe PHY bridging FPGA-based MAC to backplane connectors; handles serialization, clock recovery, and power-state negotiation per PCIe spec. Use Value: Enables deterministic, low-latency x1 PCIe links at 2.5 Gbit/s while meeting −40 °C to +85 °C industrial qualification and supporting L0s/L1 power gating to reduce system standby power.	Use Scenario: Real-time transfer of high-resolution CT/MRI sensor data from acquisition front-end FPGAs to host processing units in diagnostic imaging systems. IC Role / Device Role / Timing Role: Physical layer translator between custom FPGA MAC and standard PCIe switch; manages 8b/10b encoding, elastic buffering, and jitter-tolerant CDR for noise-immune serial transport. Use Value: Guarantees bit-error-free transmission over long PCB traces with <10⁻¹² BER, supports spread-spectrum clocking to meet medical EMC standards, and provides JTAG-accessible BIST for regulatory test traceability.
Avionics Data Concentrator Module	Test & Measurement Instrumentation
Use Scenario: Aggregation of ARINC 429, MIL-STD-1553, and discrete I/O signals into a centralized PCIe-based avionics bus using radiation-tolerant FPGAs. IC Role / Device Role / Timing Role: PCIe PHY providing robust physical layer for deterministic data routing; handles receiver detection, loopback diagnostics, and polarity inversion for cable-length compensation. Use Value: Delivers AEC-Q100-aligned reliability (via related PX1011B-EL1/Q900 variant) and supports P1 power state for rapid wake-on-event response - critical for DO-254-compliant designs.	Use Scenario: High-speed digitizer modules capturing multi-GHz RF waveforms, where raw sample data must be streamed to host memory with minimal latency and jitter. IC Role / Device Role / Timing Role: Low-jitter SerDes PHY interfacing ADC FPGA fabric to PCIe host interface; recovers clock from serial stream and presents aligned parallel data via source-synchronous RXCLK. Use Value: Achieves sub-100 fs RMS jitter on recovered clock, supports loopback mode for end-to-end signal path validation, and provides RXSTATUS error codes for real-time data integrity monitoring.

Industrial PLC Backplane Interconnect

Medical Imaging Data Acquisition

Use Scenario: High-reliability communication between CPU module and I/O expansion cards in programmable logic controllers operating in factory-floor environments with wide temperature swings and EMI.

IC Role / Device Role / Timing Role: Stand-alone PCIe PHY bridging FPGA-based MAC to backplane connectors; handles serialization, clock recovery, and power-state negotiation per PCIe spec.

Use Value: Enables deterministic, low-latency x1 PCIe links at 2.5 Gbit/s while meeting −40 °C to +85 °C industrial qualification and supporting L0s/L1 power gating to reduce system standby power.

Use Scenario: Real-time transfer of high-resolution CT/MRI sensor data from acquisition front-end FPGAs to host processing units in diagnostic imaging systems.

IC Role / Device Role / Timing Role: Physical layer translator between custom FPGA MAC and standard PCIe switch; manages 8b/10b encoding, elastic buffering, and jitter-tolerant CDR for noise-immune serial transport.

Use Value: Guarantees bit-error-free transmission over long PCB traces with <10⁻¹² BER, supports spread-spectrum clocking to meet medical EMC standards, and provides JTAG-accessible BIST for regulatory test traceability.

Avionics Data Concentrator Module

Test & Measurement Instrumentation

Use Scenario: Aggregation of ARINC 429, MIL-STD-1553, and discrete I/O signals into a centralized PCIe-based avionics bus using radiation-tolerant FPGAs.

IC Role / Device Role / Timing Role: PCIe PHY providing robust physical layer for deterministic data routing; handles receiver detection, loopback diagnostics, and polarity inversion for cable-length compensation.

Use Value: Delivers AEC-Q100-aligned reliability (via related PX1011B-EL1/Q900 variant) and supports P1 power state for rapid wake-on-event response - critical for DO-254-compliant designs.

Use Scenario: High-speed digitizer modules capturing multi-GHz RF waveforms, where raw sample data must be streamed to host memory with minimal latency and jitter.

IC Role / Device Role / Timing Role: Low-jitter SerDes PHY interfacing ADC FPGA fabric to PCIe host interface; recovers clock from serial stream and presents aligned parallel data via source-synchronous RXCLK.

Use Value: Achieves sub-100 fs RMS jitter on recovered clock, supports loopback mode for end-to-end signal path validation, and provides RXSTATUS error codes for real-time data integrity monitoring.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCIe Gen 1 x1 PHY applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IDT8N3SV772	Integrated PCIe clock generator + PHY; requires external reference clock; no JTAG BIST; 64-pin QFN package.	Targets clock-critical systems needing jitter-clean reference distribution; less flexible for standalone PHY-only use cases.	Select when combined clock synthesis and PHY functionality reduce board space; avoid if JTAG diagnostics or LFBGA81 footprint is required.
TI TSB582	PCIe Gen 1 x1 retimer with integrated equalization; higher power (≈450 mW); supports only P0/P0s states; no receiver detection or loopback.	Optimized for signal integrity restoration over lossy cables/PCB traces; not suitable for direct MAC-PHY bridging or power-aware embedded designs.	Choose for long-reach interconnects with >15 dB channel loss; reject for industrial temperature or low-power (<300 mW) requirements.

Compared with IDT8N3SV772 and TI TSB582, the PX1011BI-EL1/G,557 offers dedicated PHY functionality with industrial temperature range, comprehensive power management (L0/L0s/L1), on-chip JTAG BIST, and full receiver detection - making it optimal for FPGA-based embedded systems requiring verified PCIe physical layer control and diagnostics.

Availability

PX1011BI-EL1/G,557 is available at Aetrix Electronics and suitable for industrial automation, medical imaging, avionics data concentrators, and test instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for PX1011BI-EL1/G,557 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The PX1011B family was designed as a standalone, FPGA-friendly PCIe Gen 1 physical layer solution targeting cost-sensitive, high-reliability embedded systems requiring full PCIe protocol offload without integrated MAC logic.

FAQ

What is the operating temperature range for the PX1011BI-EL1/G,557?

The PX1011BI-EL1/G,557 is rated for industrial temperature operation from −40 °C to +85 °C. This is explicitly defined in the ordering information table and confirmed by the "I" suffix in the part number (PX1011BI-EL1/G), distinguishing it from commercial-grade variants. The device undergoes full characterization and qualification across this range, including all electrical parameters and power management states.

Does the PX1011BI-EL1/G,557 support PCIe Gen 2 or higher data rates?

No, the PX1011BI-EL1/G,557 supports only PCIe Gen 1 with a fixed 2.5 Gbit/s serial line rate. Its architecture, SerDes design, and compliance documentation (PCIe Base Spec Rev. 1.1) confirm Gen 1 operation exclusively. It does not implement the 5.0 Gbit/s encoding, equalization, or timing margins required for Gen 2, and no revision or derivative of the PX1011B family supports higher generations.

What are the required supply voltages for the PX1011BI-EL1/G,557?

The PX1011BI-EL1/G,557 requires four distinct supply domains: 1.2 V for core logic (VDDD3), 2.5 V for SSTL_2 I/O (VDDD2), 1.2 V for high-speed serial I/O and PVT (VDD), and dual analog supplies - 1.2 V (VDDA1) and 3.3 V (VDDA2) for SerDes biasing. All values are specified in Table 1 (Quick reference data) and validated across temperature and process corners.

Is the PX1011BI-EL1/G,557 pin-compatible with other variants in the PX1011B family?

Yes, all PX1011B variants - including PX1011B-EL1/G, PX1011B-EL1/N, PX1011BI-EL1/G, and PX1011B-EL1/Q900 - share identical LFBGA81 (SOT643-1) pinout and ball mapping. Pin functions, electrical characteristics, and timing behavior are consistent across variants; only temperature grade, solder composition, and qualification (e.g., AEC-Q100) differ.

How does the PX1011BI-EL1/G,557 handle clock tolerance between link partners?

The PX1011BI-EL1/G,557 uses an elastic buffer capable of holding ≥7 symbols to absorb ±600 ppm frequency differences. It automatically inserts or removes SKP ordered sets in the received data stream and signals these actions via RXSTATUS[2:0] - enabling the MAC to maintain data coherency without software intervention during clock drift events.

PX1011BI-EL1/G,557 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: 81-LFBGA

Packaging:: Tray

Product Status:: Obsolete

Applications:: PCI Express MAX to PCI Express PHY

Interface:: JTAG

Voltage - Supply:: 1.2V

Supplier Device Package:: 81-LFBGA (9x9)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

PX1011BI-EL1/G,557 FAQ

1.How can I place an order for PX1011BI-EL1/G,557 through Aetrix?

Please submit a Request for Quotation (RFQ) for PX1011BI-EL1/G,557 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PX1011BI-EL1/G,557 reliable?

The price and inventory of PX1011BI-EL1/G,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PX1011BI-EL1/G,557 is usually 5 days.

3.What payment methods are accepted for PX1011BI-EL1/G,557?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PX1011BI-EL1/G,557 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PX1011BI-EL1/G,557?

PX1011BI-EL1/G,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PX1011BI-EL1/G,557 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PX1011BI-EL1/G,557?

For technical support, including PX1011BI-EL1/G,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PX1011BI-EL1/G,557 requirements.

6.How does Aetrix verify that PX1011BI-EL1/G,557 is sourced from the original manufacturer or authorized distributors?

All PX1011BI-EL1/G,557 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PX1011BI-EL1/G,557 meets industry standards.

7.What is the process for return or replacement of PX1011BI-EL1/G,557?

All PX1011BI-EL1/G,557 units undergo pre-shipment inspection (PSI). If there is an issue with PX1011BI-EL1/G,557, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PX1011BI-EL1/G,557 part is unused and in its original packaging.

Return procedure for PX1011BI-EL1/G,557:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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