The XC2S200-6FGG1232C is a high-performance Field Programmable Gate Array (FPGA) from the Xilinx Spartan-II family, designed for demanding digital design applications that require large gate counts, high-speed operation, and a rich package pin count. Whether you’re designing communication systems, industrial automation equipment, or embedded processing platforms, the XC2S200-6FGG1232C offers a compelling balance of logic density, on-chip memory, and I/O flexibility in a proven 2.5V CMOS architecture.
What Is the XC2S200-6FGG1232C? — Overview of the Xilinx Spartan-II FPGA
The XC2S200-6FGG1232C belongs to the Spartan-II series, Xilinx’s second-generation low-cost FPGA family built on a 0.18μm six-layer metal CMOS process. The part number breaks down as follows:
| Code Segment |
Meaning |
| XC2S200 |
Xilinx Spartan-II, 200K system gates |
| -6 |
Speed grade -6 (fastest in the Spartan-II line; commercial range only) |
| FGG |
Fine-pitch Ball Grid Array package, Pb-free (G = RoHS-compliant) |
| 1232 |
1,232 total ball/pin count |
| C |
Commercial temperature range (0°C to +85°C) |
As a member of the broader Xilinx FPGA product ecosystem, the XC2S200-6FGG1232C represents the largest device in the Spartan-II family, delivering 200,000 equivalent system gates and 5,292 logic cells for highly complex programmable designs.
XC2S200-6FGG1232C Key Specifications at a Glance
Core Logic Resources
| Parameter |
XC2S200-6FGG1232C Value |
| System Gates (Logic + RAM) |
200,000 |
| Logic Cells |
5,292 |
| CLB Array |
28 × 42 |
| Total CLBs |
1,176 |
| Distributed RAM |
75,264 bits |
| Block RAM |
56K bits (7 × 8K) |
| Maximum User I/O |
284 |
| Global Clock Inputs |
4 (dedicated) |
| Delay-Locked Loops (DLL) |
4 |
Package & Electrical Specifications
| Parameter |
Value |
| Package Type |
FGG (Pb-Free Fine-Pitch BGA) |
| Total Pin Count |
1,232 |
| Core Supply Voltage (VCCINT) |
2.5V |
| I/O Supply Voltage (VCCO) |
1.5V – 3.3V (bank-selectable) |
| Speed Grade |
-6 (Commercial only) |
| Operating Temperature |
0°C to +85°C (Commercial) |
| Technology Node |
0.18μm, 6-layer metal CMOS |
| Max System Clock (fSYSTEM) |
263 MHz |
| RoHS Compliance |
Yes (Pb-Free “G” suffix) |
XC2S200-6FGG1232C Architecture — How the Spartan-II FPGA Works
Configurable Logic Blocks (CLBs)
At the heart of the XC2S200-6FGG1232C are 1,176 Configurable Logic Blocks arranged in a 28-column by 42-row array. Each CLB contains two slices, and each slice includes two 4-input Look-Up Tables (LUTs), two flip-flops, fast carry logic, and wide-function multiplexers. This architecture enables the implementation of complex combinational functions, registered logic, shift registers, and distributed memory.
CLB Slice Summary
| Resource |
Per Slice |
Per CLB |
Total (XC2S200) |
| 4-Input LUTs |
2 |
4 |
4,704 |
| Flip-Flops |
2 |
4 |
4,704 |
| Distributed RAM bits |
32 |
64 |
75,264 |
Block RAM — On-Chip Memory Architecture
The XC2S200-6FGG1232C features seven 8K-bit block RAM modules, totaling 56K bits of true dual-port synchronous SRAM. Each block RAM can be independently configured for various aspect ratios and port widths, making it ideal for FIFOs, lookup tables, and embedded data buffers without consuming CLB resources.
| Block RAM Parameter |
Value |
| Number of Block RAM modules |
7 |
| Bits per module |
8,192 |
| Total Block RAM |
57,344 bits (56K) |
| Port Configuration |
True Dual-Port |
| Maximum Width per Port |
16-bit data + 2-bit parity |
| Synchronous Operation |
Yes |
Delay-Locked Loops (DLLs)
Four on-chip Delay-Locked Loops are located at the four corners of the die. The DLLs eliminate clock distribution skew, enable clock edge alignment, support frequency synthesis (multiply/divide), and allow phase shifting. This makes the XC2S200-6FGG1232C especially well-suited for high-speed synchronous design and applications requiring clock domain management.
Input/Output Blocks (IOBs)
The XC2S200-6FGG1232C provides up to 284 user-configurable I/O pins, organized into independently configurable I/O banks. Each IOB supports:
- Programmable input delay (for zero hold-time designs)
- Slew rate control (fast/slow)
- Programmable pull-up / pull-down
- Open-drain output mode
- Multiple I/O standards per bank
Supported I/O Standards
| Standard |
Description |
| LVTTL |
3.3V Low-Voltage TTL |
| LVCMOS33 / LVCMOS25 / LVCMOS18 |
Low-Voltage CMOS variants |
| PCI |
3.3V PCI bus standard |
| GTL / GTL+ |
Gunning Transceiver Logic |
| SSTL2 / SSTL3 |
Stub Series Terminated Logic |
| AGP |
Accelerated Graphics Port |
| CTT |
Center-Tap Terminated |
| HSTL |
High-Speed Transceiver Logic |
XC2S200-6FGG1232C Speed Grade -6 — Performance Specifications
The -6 speed grade is the highest performance tier within the Spartan-II family and is exclusively available for the commercial temperature range. Key timing characteristics include:
| Timing Parameter |
XC2S200-6 Value |
| Maximum System Frequency |
263 MHz |
| CLB-to-CLB Delay (tILO) |
~0.4 ns |
| Setup Time (tSU) |
~0.6 ns |
| CLK-to-Out (tCO) |
~0.9 ns |
| Block RAM Access Time |
~3.8 ns |
| DLL Output Jitter |
< 100 ps |
XC2S200-6FGG1232C Package Details — FGG1232 Ball Grid Array
The FGG1232 package is a Fine-Pitch Ball Grid Array (FBGA) format with 1,232 total solder balls. The “GG” designation in the part number confirms this is the Pb-free (RoHS-compliant) version of the FG1232 package, meeting European WEEE/RoHS environmental directives.
| Package Parameter |
Value |
| Package Type |
FBGA (Fine-Pitch BGA) |
| Total Balls |
1,232 |
| Pb-Free |
Yes (RoHS-compliant) |
| Ball Pitch |
1.0 mm |
| Package Size |
35 mm × 35 mm (typical) |
| Thermal Resistance (θJA) |
Approx. 14–18°C/W (depending on airflow) |
The large 1,232-ball footprint maximizes available user I/O and provides excellent PCB routing flexibility for high pin-count system designs.
Programming and Configuration of the XC2S200-6FGG1232C
Configuration Modes
The XC2S200-6FGG1232C supports multiple configuration modes suited to different system architectures:
| Mode |
Description |
| Master Serial |
FPGA drives configuration clock; loads from serial PROM |
| Slave Serial |
External clock source drives FPGA configuration |
| Master Parallel (SelectMAP) |
High-speed 8-bit parallel configuration bus |
| Slave Parallel (SelectMAP) |
Processor-driven 8-bit configuration |
| JTAG (Boundary Scan) |
IEEE 1149.1 JTAG interface for in-system programming |
Compatible Development Tools
- Xilinx ISE Design Suite — Primary legacy toolchain for Spartan-II synthesis, implementation, and bitstream generation
- ModelSim / QuestaSim — RTL and gate-level simulation
- ChipScope Pro — In-system logic analysis via JTAG
- iMPACT — Bitstream download and PROM programming utility
XC2S200-6FGG1232C vs. Other Spartan-II Family Members
Understanding where the XC2S200 sits in the broader Spartan-II lineup helps engineers select the right device for their gate count and I/O requirements.
| Device |
Logic Cells |
System Gates |
CLB Array |
Max User I/O |
Block RAM |
| XC2S15 |
432 |
15,000 |
8×12 |
86 |
16K |
| XC2S30 |
972 |
30,000 |
12×18 |
92 |
24K |
| XC2S50 |
1,728 |
50,000 |
16×24 |
176 |
32K |
| XC2S100 |
2,700 |
100,000 |
20×30 |
176 |
40K |
| XC2S150 |
3,888 |
150,000 |
24×36 |
260 |
48K |
| XC2S200 |
5,292 |
200,000 |
28×42 |
284 |
56K |
The XC2S200 is the largest and most capable device in the Spartan-II family, making the XC2S200-6FGG1232C the top choice when maximum logic density and I/O count are required.
Top Applications for the XC2S200-6FGG1232C FPGA
Industrial Automation and Control
The XC2S200-6FGG1232C is widely deployed in motor control systems, PLCs, and sensor interfaces. Its large CLB count supports multi-axis control algorithms, PID loops, and high-speed encoder processing in a single programmable device.
Telecommunications and Networking
With its 263 MHz maximum system frequency and rich I/O standard support (including SSTL, GTL+, HSTL), the XC2S200-6FGG1232C is used in line-card designs, protocol converters, framers, and data path processing for telecom infrastructure equipment.
Embedded Processing Platforms
Engineers implement soft-core processors (such as PicoBlaze) within the XC2S200-6FGG1232C to create intelligent, reconfigurable embedded systems with on-chip code/data storage using block RAM.
Defense and Aerospace
The deterministic, radiation-tolerant nature of SRAM-based FPGAs and Xilinx’s well-established supply chain has made the XC2S200 series a staple in avionics signal processing, radar DSP, and secure communications hardware.
Medical Imaging Equipment
The device’s ability to handle real-time data pipelines and interface with high-speed ADCs makes it suitable for ultrasound signal processing, MRI gradient control, and portable diagnostic equipment.
Video and Image Processing
The XC2S200-6FGG1232C supports pipelined image processing chains including filtering, format conversion, and edge detection, leveraging its distributed and block RAM for line-buffer storage.
XC2S200-6FGG1232C Ordering Information Decoded
Xilinx uses a consistent part-numbering convention across the Spartan-II family. Here is a full breakdown of the XC2S200-6FGG1232C order code:
| Field |
Code |
Meaning |
| Family |
XC2S |
Spartan-II |
| Gate Count |
200 |
200,000 system gates |
| Speed Grade |
-6 |
Fastest; commercial temp only |
| Package Base |
FG |
Fine-Pitch BGA |
| Pb-Free Indicator |
G |
RoHS-compliant Pb-free packaging |
| Pin Count |
1232 |
1,232 balls |
| Temperature Range |
C |
Commercial (0°C to +85°C) |
XC2S200-6FGG1232C vs. Competing FPGAs — Alternative Devices
If the XC2S200-6FGG1232C is unavailable or a design migration is required, the following alternatives cover similar logic density and I/O classes:
| Alternative Part |
Family |
Gates |
Notes |
| XC2S200-5FGG1232C |
Spartan-II |
200K |
Same device, speed grade -5 |
| XC3S200-4FGG320C |
Spartan-3 |
200K |
Next-gen, lower cost |
| XC3S400-4FGG400C |
Spartan-3 |
400K |
Higher density upgrade |
| EPF10K200SRC240-3 |
Altera FLEX 10K |
~200K |
Competitive alternative |
| XC2VP4-6FFG672C |
Virtex-II Pro |
23K LCs |
Higher performance tier |
Note: Migrating from Spartan-II to Spartan-3 requires re-synthesis and layout in Xilinx ISE due to architectural differences, though the toolchain is the same.
Frequently Asked Questions — XC2S200-6FGG1232C
What does the “-6” speed grade mean on the XC2S200-6FGG1232C?
The -6 speed grade is the fastest timing bin available in the Spartan-II family. It guarantees the tightest setup/hold times and lowest propagation delays, enabling system clock frequencies up to 263 MHz. Importantly, the -6 grade is only offered in the commercial temperature range (0°C to +85°C) and is not available for industrial (-40°C to +85°C) or military temperature ranges.
Is the XC2S200-6FGG1232C RoHS-compliant?
Yes. The double “GG” in the package designator confirms that this is the Pb-free (lead-free) version of the FG1232 package, complying with EU RoHS Directive 2002/95/EC and its amendments.
What configuration tools work with the XC2S200-6FGG1232C?
The device is programmed using Xilinx’s iMPACT tool within the ISE Design Suite. JTAG-based boundary scan is also supported, and the device can be configured from an external serial or parallel PROM in production environments.
How many I/O pins does the XC2S200-6FGG1232C actually have available?
The device supports up to 284 user I/O pins. The total 1,232 balls on the FGG1232 package include power, ground, dedicated configuration, and clock pins in addition to user-accessible I/Os.
What is the difference between FG1232 and FGG1232 packages?
The FGG1232 is the Pb-free (RoHS-compliant) variant of the FG1232 package. Electrically and mechanically they are identical — the extra “G” simply indicates lead-free solder balls, satisfying environmental regulations for designs shipped into European and other restricted markets.
Design Tips for Working with the XC2S200-6FGG1232C
PCB Layout Considerations
Because the FGG1232 package uses a 1.0 mm ball pitch, careful PCB stackup planning is essential. High-density interconnect (HDI) PCBs with via-in-pad or blind/buried vias are commonly used to efficiently escape the inner rows of balls. Keep power and ground planes continuous beneath the device for low-impedance power delivery.
Decoupling and Power Integrity
The XC2S200-6FGG1232C has separate VCCINT (2.5V core) and VCCO (I/O bank) supplies. Place 100 nF ceramic decoupling capacitors on every VCCINT and VCCO ball pair, with an additional 10 µF bulk capacitor per power cluster. Poor decoupling is the leading cause of Spartan-II configuration failures and signal integrity issues.
Thermal Management
At -6 speed and high utilization, the XC2S200 can dissipate several watts. Ensure adequate copper pour on the top and bottom layers beneath the device, and consider a heatsink or airflow solution for duty cycles above 70% logic utilization in confined enclosures.
Summary — Why Choose the XC2S200-6FGG1232C?
The XC2S200-6FGG1232C combines the largest logic capacity in the Spartan-II portfolio with the highest available speed grade and a high-pin-count Pb-free BGA package. Key reasons engineers specify this part include:
- 200,000 system gates — maximum logic density for the Spartan-II family
- 263 MHz operation — enabled by the -6 speed grade
- 284 user I/Os — extensive connectivity for complex board-level interfaces
- 56K bits block RAM — on-chip memory without external components
- Four DLLs — robust clock management and zero-skew distribution
- RoHS-compliant FGG1232 package — meets global environmental standards
- Proven Xilinx ISE toolchain — mature, well-documented design flow
For engineers requiring a high-density, high-speed programmable logic solution in a proven 0.18μm process, the XC2S200-6FGG1232C remains one of the most capable devices in the Spartan-II generation.
