Continued Support for Xilinx Virtex-4 LX FPGAs (LX60 & LX160)

Although the Xilinx Virtex-4 LX family is considered a mature FPGA platform, it continues to play an essential role in many long-life and mission-critical electronic systems. Industries such as industrial automation, communications infrastructure, test and measurement, railway systems, and aerospace-related applications still rely on these devices due to their proven stability, qualification history, and predictable performance.

To support ongoing production, maintenance, and repair needs, LXB Semicon continues to supply selected Virtex-4 LX60 and LX160 FPGA devices, covering commonly used speed grades, temperature ranges, and package options.

Supported Virtex-4 LX Device Models

Our current support scope includes, but is not limited to, the following Virtex-4 LX series part numbers, which are widely deployed in industrial and long-lifecycle systems:

Virtex-4 LX60 (668-FCBGA, 27 × 27 mm)

XC4VLX60-11FFG668I

XC4VLX60-10FFG668C

XC4VLX60-11FFG668C

Virtex-4 LX160 (1148-FCBGA, 35 × 35 mm)

XC4VLX160-10FFG1148I

XC4VLX160-11FFG1148I

XC4VLX160-10FFG1148C

XC4VLX160-11FFG1148C

XC4VLX160-10FF1148I

XC4VLX160-11FF1148I

XC4VLX160-10FF1148C

These devices cover both industrial-grade (-40°C to +100°C) and commercial-grade (0°C to +85°C) temperature ranges, as well as -10 and -11 speed grades, allowing compatibility with existing, qualified designs.

Key Technical Characteristics

The supported Virtex-4 LX devices share a set of well-established technical features:

Logic density up to 152,064 logic elements (LX160)

Embedded Block RAM up to 5.31 Mbit

Core voltage range 1.14 V to 1.26 V

Surface-mount FCBGA packaging

Proven performance in industrial and controlled commercial environments

These characteristics make Virtex-4 LX devices particularly suitable for systems where functional stability and certification continuity are more important than adopting newer FPGA architectures.

Focus on Industrial and Legacy Applications

Many OEMs and system integrators continue to operate Virtex-4–based platforms because of their validated performance, long deployment cycles, and environmental robustness. In regulated or infrastructure-related applications, replacing a qualified FPGA often introduces significant cost, risk, and re-certification effort.

• Common application scenarios include:
• Industrial control and automation platforms
• Railway signaling and onboard electronics
• Communications and signal processing equipment
• Test and measurement systems with extended service life

About LXB Semicon

With a team of over 30 professionals and operations based in Shenzhen, a global electronics manufacturing and distribution hub, our company operates from an office area of nearly 600 square meters. Our organizational structure includes:

General Management

Sales Department

Purchasing Department

Quality Inspection Department

Administration Department

Finance Department

This structure enables efficient coordination across sourcing, technical confirmation, and quality control.

Brand Coverage and Component Expertise

We support a wide range of mainstream and legacy semiconductor brands, including:

XILINX, ADI, ALTERA, ATMEL, TI, NEXPERIA, MAXIM / DALLAS, FSC / IR / VISHAY, MICROCHIP, NXP / ON, INFINEON, DIODES, FREESCALE, AVAGO, and others.

This broad brand coverage allows us to assist customers in maintaining complex BOMs across industrial, communications, and long-lifecycle applications.

Quality Control and Supply Practices

Legacy FPGAs require strict attention to traceability, storage conditions, and correct part identification, especially for high-pin-count BGA devices. Our internal quality processes focus on:

Verification of speed grade and temperature classification

Confirmation of package type and footprint compatibility

Controlled storage and handling procedures

These measures help minimize sourcing risks and integration issues during production or system maintenance.

Supporting Long-Term Projects

Virtex-4 LX devices remain a dependable choice for many established platforms. Whether supporting ongoing production, field replacement, or system refurbishment, we aim to provide consistent and technically aligned support.

For availability details, technical confirmation, or project-specific inquiries regarding the above part numbers, our team is available to assist.