The XC4052XLA-09PQ240I is a high-performance Field Programmable Gate Array (FPGA) from Xilinx’s XC4000XLA family. Designed for industrial-grade applications, this device delivers 52,000 gates of programmable logic in a compact 240-pin PQFP package. Whether you are sourcing replacement components for legacy systems or maintaining existing designs, understanding the full specifications of the XC4052XLA-09PQ240I is essential for confident procurement and integration.
What Is the XC4052XLA-09PQ240I?
The XC4052XLA-09PQ240I is a member of Xilinx’s XC4000XLA/XV FPGA family — a series built on a proven 0.35 µm CMOS process technology. The “09” in the part number denotes a speed grade of -9 (227 MHz maximum system clock), and the “I” suffix indicates an industrial temperature range (-40°C to +85°C), making it suitable for demanding environments.
As a Xilinx FPGA, the XC4052XLA-09PQ240I combines architectural versatility, abundant routing resources, and mature design toolchain support — the result of over a decade and a half of FPGA engineering refinement and real-world customer feedback.
Note: This part is classified as Not Recommended for New Designs (NRND). It is primarily used for legacy system maintenance, repair, and replacement applications.
XC4052XLA-09PQ240I Key Specifications
General Overview
| Parameter |
Value |
| Manufacturer |
Xilinx (now AMD) |
| Part Number |
XC4052XLA-09PQ240I |
| Product Family |
XC4000XLA / XV |
| Logic Gates |
52,000 |
| Logic Cells (CLBs) |
4,598 |
| Technology Node |
0.35 µm CMOS |
| Supply Voltage |
3.3V |
| Speed Grade |
-9 (227 MHz) |
| Package Type |
PQFP (Plastic Quad Flat Package) |
| Pin Count |
240 |
| Temperature Range |
Industrial: –40°C to +85°C |
| Design Status |
Not Recommended for New Design (NRND) |
Package & Pinout Details
| Parameter |
Value |
| Package |
PQ240 (PQFP, 240-pin) |
| Package Body Size |
36 mm × 36 mm (typical PQFP240) |
| Lead Pitch |
0.5 mm |
| User I/O Pins |
Up to 192 |
| Configuration Pins |
Dedicated (DONE, PROG, CCLK, etc.) |
| JTAG Boundary Scan |
Supported (IEEE 1149.1) |
Electrical Characteristics
| Parameter |
Min |
Typical |
Max |
| VCC Supply Voltage |
3.135V |
3.3V |
3.465V |
| VCCO I/O Supply |
3.135V |
3.3V |
3.465V |
| Input High Voltage (VIH) |
2.0V |
— |
VCC + 0.5V |
| Input Low Voltage (VIL) |
–0.5V |
— |
0.8V |
| Output High Voltage (VOH) |
2.4V |
— |
— |
| Output Low Voltage (VOL) |
— |
— |
0.4V |
| Static Supply Current (ICC) |
— |
— |
50 mA (typical) |
| Operating Temperature |
–40°C |
— |
+85°C (Industrial) |
Performance & Logic Resources
| Resource |
Quantity |
| CLBs (Configurable Logic Blocks) |
4,598 |
| Equivalent Gates |
52,000 |
| Maximum System Frequency |
227 MHz |
| Flip-Flops |
~9,196 (2 per CLB) |
| 4-Input LUTs |
~9,196 |
| Distributed RAM |
Yes (via CLBs) |
| Internal Block RAM |
Not available (XC4000 architecture) |
| On-chip Oscillator |
No |
| DLLs / DCMs |
No |
XC4052XLA-09PQ240I Architecture Overview
Configurable Logic Blocks (CLBs)
Each CLB in the XC4000XLA architecture contains two 4-input function generators (Look-Up Tables), one 3-input function generator, and two flip-flops (or latches). This combination allows implementation of complex Boolean logic, arithmetic functions, and registered logic in a single block. The CLBs support functions of up to nine variables, making them highly flexible for dense logic integration.
I/O Blocks (IOBs)
The Input/Output Blocks are programmable and support configurable slew rates, pull-up/pull-down resistors, and 3-state control. The XC4000XLA IOBs are 3.3V CMOS/TTL compatible. With up to 192 user I/Os on the PQ240 package, the XC4052XLA-09PQ240I provides ample connectivity for mid-density interface designs.
Routing Architecture
The device features a rich, hierarchical routing network including:
- Direct interconnects between adjacent CLBs for fast local routing
- General-purpose routing for longer signal paths across the device
- Long lines running the full width and height of the array for global signals
This three-tier routing hierarchy ensures both speed and flexibility for complex designs.
Configuration
The XC4052XLA-09PQ240I supports multiple configuration modes:
| Configuration Mode |
Description |
| Master Serial |
FPGA drives CCLK; reads serial bitstream from external Flash |
| Slave Serial |
External source provides CCLK and data |
| Slave Parallel (SelectMAP) |
Byte-wide data bus for fast configuration |
| JTAG (Boundary Scan) |
IEEE 1149.1 compliant, also supports configuration |
| Master Parallel Up/Down |
Parallel address-mode configuration from EPROM |
Configuration data is stored in an external serial or parallel PROM. The device configures in milliseconds and supports in-system reprogramming.
Part Number Decoder: XC4052XLA-09PQ240I
Understanding the naming convention helps when comparing or sourcing alternative variants.
| Field |
Value |
Meaning |
| XC |
XC |
Xilinx Component |
| 4052 |
4052 |
XC4000 family, ~52K gate density |
| XLA |
XLA |
Extended Low-power Architecture variant |
| -09 |
-09 |
Speed Grade –9 (227 MHz) |
| PQ |
PQ |
PQFP (Plastic Quad Flat Package) |
| 240 |
240 |
240-pin package |
| I |
I |
Industrial temperature (–40°C to +85°C) |
The “C” suffix (e.g., XC4052XLA-09PQ240C) would indicate a Commercial temperature range (0°C to +70°C).
XC4052XLA-09PQ240I vs. Related Variants
| Part Number |
Gates |
Speed Grade |
Package |
Temp Range |
| XC4052XLA-09PQ240I |
52K |
-9 (227 MHz) |
PQ240 |
Industrial |
| XC4052XLA-09PQ240C |
52K |
-9 (227 MHz) |
PQ240 |
Commercial |
| XC4052XLA-08HQ208I |
52K |
-8 (263 MHz) |
HQ208 |
Industrial |
| XC4052XLA-09HQ240I |
52K |
-9 (227 MHz) |
HQ240 |
Industrial |
| XC4052XLA-09BG352I |
52K |
-9 (227 MHz) |
BG352 |
Industrial |
| XC4044XLA-09HQ240I |
44K |
-9 (227 MHz) |
HQ240 |
Industrial |
| XC4036XLA-09HQ240I |
36K |
-9 (227 MHz) |
HQ240 |
Industrial |
Applications of the XC4052XLA-09PQ240I
Despite being an NRND component, the XC4052XLA-09PQ240I remains in active demand for the following use cases:
- Legacy system maintenance — industrial control panels, test equipment, and defense electronics originally designed in the late 1990s and early 2000s
- Telecommunications infrastructure — older line cards and switching equipment requiring long service life
- Medical device repair — field replacement in certified equipment where redesign is not feasible
- Aerospace and defense — programs with long qualification cycles that cannot adopt new devices
- Industrial automation — PLCs and motion control boards with extended production lifecycles
Design Tools & Software Support
The XC4052XLA-09PQ240I is supported by Xilinx’s legacy ISE Design Suite. Modern Vivado does not support the XC4000 family.
| Tool |
Version Required |
Notes |
| Xilinx ISE Design Suite |
ISE 14.7 (latest) |
Last ISE version; Windows/Linux support |
| FPGA Editor |
Included with ISE |
Floorplanning and debugging |
| iMPACT |
Included with ISE |
Configuration and JTAG programming |
| CORE Generator |
Included with ISE |
IP core generation |
| ModelSim (Xilinx Edition) |
ISE-bundled |
RTL/gate-level simulation |
ISE 14.7 is available as a free download from AMD/Xilinx for Windows 7 and Linux platforms (64-bit with 32-bit compatibility libraries).
Ordering Information
| Field |
Detail |
| Full Part Number |
XC4052XLA-09PQ240I |
| Manufacturer |
Xilinx, Inc. (AMD) |
| Package |
240-pin PQFP |
| Temperature |
Industrial (–40°C to +85°C) |
| Speed Grade |
–9 |
| RoHS Status |
Not RoHS Compliant (legacy product) |
| Availability |
Through authorized distributors and specialty legacy component suppliers |
Frequently Asked Questions (FAQ)
Q: Is the XC4052XLA-09PQ240I still in production? No. This part is classified as Not Recommended for New Designs (NRND). It is available through excess inventory channels, authorized distributors, and specialty legacy component brokers.
Q: What is the difference between the -09PQ240I and -09PQ240C variants? The only difference is the temperature range. The I (Industrial) grade operates from –40°C to +85°C. The C (Commercial) grade operates from 0°C to +70°C.
Q: Can I program the XC4052XLA-09PQ240I with Vivado? No. Vivado does not support the XC4000 family. You must use Xilinx ISE 14.7 to synthesize, implement, and generate bitstreams for this device.
Q: What configuration PROM is compatible with this FPGA? Common choices include the XC17S150XL (serial PROM) or the XC18V512/XC18V01 series. The selection depends on your bitstream size and configuration mode.
Q: Is the XC4052XLA-09PQ240I RoHS compliant? No. As a legacy device from the late 1990s–early 2000s era, it is not RoHS compliant and may contain lead-based solder on the package leads.
Summary
The XC4052XLA-09PQ240I is a proven 52,000-gate, 3.3V FPGA from Xilinx’s XC4000XLA family, housed in a 240-pin PQFP package and rated for industrial temperatures. Operating at up to 227 MHz with a rich CLB architecture and flexible configuration options, it continues to serve critical roles in legacy system support across industrial, defense, medical, and telecommunications sectors. If you are sourcing this component, verify availability through reputable distributors and confirm authentic provenance, as counterfeit risk is elevated for discontinued legacy FPGAs.
