The XC4085XLA-09BGG352C is a high-capacity, high-performance Field Programmable Gate Array (FPGA) from Xilinx’s XC4000XLA family. Distributed by Rochester Electronics, this device is designed for complex digital logic applications requiring substantial gate density, reliable timing performance, and flexible I/O configuration. Whether you are maintaining a legacy system or sourcing a trusted component for an established design, the XC4085XLA-09BGG352C delivers proven silicon performance in a 352-pin BGA package.

If you are looking for a broader selection of programmable logic solutions, explore our range of Xilinx FPGA products for more options.

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What Is the XC4085XLA-09BGG352C?

The XC4085XLA-09BGG352C is a member of the Xilinx XC4000XLA/XV series — one of the most widely deployed FPGA families in industrial, communications, and embedded computing applications. Built on a 0.35 µm CMOS process, this device integrates approximately 85,000 system gates and 3,136 Configurable Logic Blocks (CLBs), providing substantial programmable logic density for complex, real-world designs.

The “-09” speed grade indicates a maximum operating frequency of 227 MHz, while the “BGG352C” suffix specifies a 352-pin Ball Grid Array (BGA) package in commercial temperature range. This combination of gate density, operating speed, and package format makes the XC4085XLA-09BGG352C an ideal choice for engineers maintaining or extending legacy FPGA-based systems.

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XC4085XLA-09BGG352C Key Specifications

General Overview Table

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XC4085XLA-09BGG352C Detailed Technical Specifications

Logic and Memory Resources

Speed and Timing

I/O and Package

Power and Process

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XC4085XLA-09BGG352C Architecture Overview

Configurable Logic Blocks (CLBs)

The CLB is the fundamental building block of the XC4000XLA FPGA architecture. Each CLB in the XC4085XLA-09BGG352C contains two independent function generators capable of implementing any logic function of up to four inputs (F and G function units). The CLB also includes an H function generator that accepts one output from each F and G unit plus an additional input (H1), enabling complex three-input logic operations.

Each CLB contains two dedicated flip-flops with configurable set/reset controls, enabling both combinatorial and sequential logic to be implemented within the same block. This architectural flexibility allows designers to efficiently map a wide range of digital designs directly into the device fabric.

Global Clock Networks

The XC4085XLA-09BGG352C features eight global low-skew clock networks that distribute clock signals across the entire device with minimal skew. These dedicated clock resources simplify timing closure and support multi-clock domain designs, which are common in communications, DSP, and control applications.

Routing Architecture

Built on Xilinx’s segmented routing architecture, the XC4085XLA-09BGG352C provides abundant interconnect resources to efficiently route signals between CLBs. The routing fabric includes single-length, double-length, and long-line resources, giving place-and-route tools the flexibility needed to achieve timing closure on complex designs.

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Configuration and Programming

Configuration Modes Supported

The XC4085XLA-09BGG352C supports IEEE 1149.1 JTAG boundary scan, enabling in-system testing and debugging without physical test probes. Readback capability is also supported, allowing designers to verify internal configuration states during development and field diagnostics.

The device supports unlimited reprogramming, giving engineers the flexibility to update designs in the field or during prototyping without replacing hardware.

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Applications and Use Cases

The XC4085XLA-09BGG352C is well-suited to a wide range of applications that rely on this established FPGA platform:

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Part Number Decoder: XC4085XLA-09BGG352C

Understanding the XC4085XLA-09BGG352C part number helps engineers quickly identify key device parameters:

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XC4085XLA-09BGG352C vs. Related Variants

Designers working with the XC4085XLA family may also encounter these closely related variants:

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Why Choose Rochester Electronics for XC4085XLA-09BGG352C?

Rochester Electronics is an authorized lifetime distributor of Xilinx (AMD) products, specializing in the supply of end-of-life, obsolete, and hard-to-find semiconductors. Purchasing the XC4085XLA-09BGG352C through Rochester Electronics provides:

• Authorized supply chain – devices sourced directly from the original manufacturer
• Guaranteed authenticity – no risk of counterfeit components
• Long-term availability – support for legacy and defense systems requiring multi-year supply continuity
• Full traceability – complete documentation and lot traceability for regulated industries

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Ordering Information

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Frequently Asked Questions (FAQ)

Q: Is the XC4085XLA-09BGG352C still in production? A: No. The XC4085XLA-09BGG352C is an obsolete/legacy component. Rochester Electronics provides authorized aftermarket supply for customers who need continued access to this device.

Q: What software is used to program the XC4085XLA-09BGG352C? A: This device is supported by Xilinx ISE Design Suite (legacy). Vivado does not support XC4000-series devices.

Q: What is the difference between the “C” and “I” suffix versions? A: The “C” suffix denotes commercial temperature range (0°C to +85°C), while “I” denotes industrial temperature range (–40°C to +100°C).

Q: Can the XC4085XLA-09BGG352C be reprogrammed? A: Yes. As an SRAM-based FPGA, it supports unlimited reprogramming and in-system reconfiguration.

Q: Is JTAG boundary scan supported? A: Yes. The device is fully compliant with IEEE 1149.1 JTAG for in-system testing and debugging.

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Summary

The XC4085XLA-09BGG352C is a proven, high-density Xilinx XC4000XLA FPGA offering approximately 85,000 system gates, 3,136 CLBs, and 227 MHz performance in a 352-pin BGA package operating at 3.3V. It is a critical component for engineers maintaining legacy systems in communications, industrial, aerospace, and enterprise markets. Authorized supply through Rochester Electronics ensures genuine parts with full traceability for even the most demanding supply chain requirements.