The XC3S200-4PQG208C is a field-programmable gate array (FPGA) from the Xilinx Spartan-3 family, manufactured by AMD (formerly Xilinx). Designed for cost-sensitive, high-volume applications, this device delivers 200,000 system gates in a compact 208-pin PQFP package. Whether you are prototyping digital logic, building embedded systems, or implementing DSP pipelines, the XC3S200-4PQG208C provides the programmable logic density, I/O flexibility, and power efficiency that engineers demand.
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What Is the XC3S200-4PQG208C?
The XC3S200-4PQG208C belongs to AMD Xilinx’s Spartan-3 series — one of the most widely deployed low-cost FPGA families in the industry. The part number breaks down as follows:
| Part Number Segment |
Meaning |
| XC3S |
Xilinx Spartan-3 family |
| 200 |
200,000 equivalent system gates |
| -4 |
Speed grade (–4 is the slowest / most power-efficient) |
| PQ |
PQFP (Plastic Quad Flat Pack) package |
| G208 |
208-pin package |
| C |
Commercial temperature range (0°C to +85°C) |
Key Features of the XC3S200-4PQG208C
- 200,000 system gates with 4,320 logic cells
- 208-pin PQFP surface-mount package
- 173 user I/O pins for maximum design flexibility
- 12 multipliers (18×18-bit) for DSP and signal processing
- 216 Kbits of block RAM for on-chip data buffering
- 4 digital clock managers (DCMs) for clock synthesis, phase shifting, and frequency division
- Commercial temperature range: 0°C to +85°C
- 1.2 V core voltage with 3.3 V I/O support
- Compatible with Xilinx ISE Design Suite and third-party EDA tools
- Supports multiple I/O standards including LVTTL, LVCMOS, SSTL, HSTL
XC3S200-4PQG208C Technical Specifications
General Parameters
| Parameter |
Value |
| Manufacturer |
AMD / Xilinx |
| Series |
Spartan-3 |
| Part Number |
XC3S200-4PQG208C |
| Logic Cells |
4,320 |
| System Gates |
200,000 |
| CLB Slices |
1,920 |
| Flip-Flops |
3,840 |
| Distributed RAM |
30 Kbits |
| Block RAM |
216 Kbits |
| Dedicated Multipliers |
12 × (18×18-bit) |
| DCMs (Digital Clock Managers) |
4 |
| Maximum User I/O |
173 |
| Speed Grade |
-4 |
| Core Supply Voltage (Vccint) |
1.2 V |
| I/O Supply Voltage (Vccio) |
1.2 V – 3.3 V |
Package & Mechanical Specifications
| Parameter |
Value |
| Package Type |
PQFP (Plastic Quad Flat Pack) |
| Package Code |
PQG208 |
| Pin Count |
208 |
| Mounting Type |
Surface Mount |
| Operating Temperature (Commercial) |
0°C to +85°C |
| RoHS Compliant |
Yes |
I/O and Electrical Characteristics
| Parameter |
Value |
| Total User I/O Pins |
173 |
| I/O Standards Supported |
LVTTL, LVCMOS (1.2V–3.3V), SSTL2/3, HSTL, GTL, PCI |
| Maximum I/O Current (per pin) |
24 mA |
| Configuration Interface |
Master/Slave Serial, SelectMAP (Parallel), JTAG (IEEE 1149.1) |
| Internal Pull-Up / Pull-Down |
Yes |
XC3S200-4PQG208C Logic Architecture
Configurable Logic Blocks (CLBs)
The Spartan-3 CLB architecture consists of slices, each containing two 4-input look-up tables (LUTs), flip-flops, and dedicated carry logic. The XC3S200 provides 1,920 slices (3,840 flip-flops) arranged in a regularly structured array, enabling efficient mapping of combinational and sequential logic.
Block RAM
With 216 Kbits of dual-port block RAM, the XC3S200-4PQG208C supports a wide variety of memory-intensive applications such as FIFOs, shift registers, and lookup tables. Each block RAM can be configured independently in different widths and depths.
Digital Clock Managers (DCMs)
The four on-chip DCMs allow designers to:
- Eliminate clock distribution skew
- Synthesize new clock frequencies from an input reference
- Shift clock phase by precise increments
- Divide or multiply clock frequencies
XC3S200-4PQG208C vs Other Spartan-3 Devices
Understanding where the XC3S200 fits within the Spartan-3 family helps engineers select the right device for their application.
| Device |
System Gates |
Logic Cells |
Block RAM |
Multipliers |
Max User I/O |
| XC3S50 |
50,000 |
1,728 |
72 Kbits |
4 |
124 |
| XC3S200 |
200,000 |
4,320 |
216 Kbits |
12 |
173 |
| XC3S400 |
400,000 |
8,064 |
288 Kbits |
16 |
264 |
| XC3S1000 |
1,000,000 |
17,280 |
432 Kbits |
24 |
391 |
| XC3S1500 |
1,500,000 |
29,952 |
576 Kbits |
32 |
487 |
The XC3S200-4PQG208C sits at a practical middle ground — offering substantially more resources than the XC3S50 while remaining cost-effective compared to larger devices.
Supported I/O Standards
The XC3S200-4PQG208C supports a comprehensive set of single-ended and differential I/O standards, making it compatible with a wide variety of external interfaces and bus architectures.
| I/O Standard |
Category |
Voltage Level |
| LVTTL |
Single-Ended |
3.3 V |
| LVCMOS33 |
Single-Ended |
3.3 V |
| LVCMOS25 |
Single-Ended |
2.5 V |
| LVCMOS18 |
Single-Ended |
1.8 V |
| LVCMOS15 |
Single-Ended |
1.5 V |
| LVCMOS12 |
Single-Ended |
1.2 V |
| PCI (33/66 MHz) |
Single-Ended |
3.3 V |
| SSTL2 Class I/II |
Single-Ended |
2.5 V |
| SSTL3 Class I/II |
Single-Ended |
3.3 V |
| HSTL Class I–IV |
Single-Ended |
1.5 V |
| GTL / GTL+ |
Single-Ended |
Ref-based |
Configuration Methods
The XC3S200-4PQG208C supports multiple configuration interfaces for flexible board design:
| Configuration Mode |
Description |
| Master Serial |
FPGA loads bitstream from serial Flash memory |
| Slave Serial |
External controller streams bitstream into FPGA |
| Master SelectMAP |
Parallel 8-bit configuration bus from Flash |
| Slave SelectMAP |
Parallel 8-bit bus driven by external processor |
| JTAG (IEEE 1149.1) |
Standard JTAG boundary scan and in-system programming |
JTAG configuration is the most common method during development and prototyping, supported by Xilinx iMPACT and compatible third-party JTAG tools.
Typical Applications
The XC3S200-4PQG208C is well suited for a broad range of embedded and digital design applications:
- Industrial control systems – Motor controllers, PLCs, and sensor interfaces
- Communications interfaces – UART, SPI, I2C, CAN bus bridges
- Image and video processing – Low-latency pixel pipelines, frame buffers
- Digital signal processing (DSP) – FIR/IIR filters, FFTs using on-chip multipliers
- Embedded processor systems – MicroBlaze or PicoBlaze soft-core CPU implementations
- Prototyping and emulation – ASIC prototyping, logic verification
- Consumer electronics – Set-top boxes, LCD controllers, remote I/O expanders
- Test and measurement equipment – Pattern generators, logic analyzers
Design Tools and Development Support
Xilinx ISE Design Suite
The XC3S200-4PQG208C is supported by the Xilinx ISE Design Suite (available as a free WebPACK edition for Spartan-3 devices). ISE provides:
- HDL synthesis (VHDL and Verilog)
- Implementation, place-and-route
- Timing analysis and simulation
- Bitstream generation and programming
Note: Xilinx Vivado does not support Spartan-3 devices. Use ISE 14.7 for all XC3S-series development.
IP Cores Available
| IP Core |
Description |
| MicroBlaze |
32-bit soft-core RISC processor |
| PicoBlaze |
Lightweight 8-bit embedded controller |
| Tri-Mode Ethernet MAC |
10/100/1000 Mbps Ethernet |
| DDR/DDR2 Memory Controller |
SDRAM interface IP |
| PCI Lite |
PCI bus interface core |
Ordering Information
| Parameter |
Detail |
| Manufacturer Part Number |
XC3S200-4PQG208C |
| Manufacturer |
AMD / Xilinx |
| DigiKey Part Number |
122-1448-ND |
| Package |
208-PQFP |
| RoHS Status |
RoHS Compliant |
| Temperature Grade |
Commercial (0°C to +85°C) |
| Lead-Free |
Yes |
Available Speed Grades for XC3S200 PQG208
| Part Number |
Speed Grade |
Package |
Temperature |
| XC3S200-4PQG208C |
-4 (Slow) |
208-PQFP |
Commercial |
| XC3S200-5PQG208C |
-5 (Medium) |
208-PQFP |
Commercial |
| XC3S200-4PQG208I |
-4 (Slow) |
208-PQFP |
Industrial |
Frequently Asked Questions (FAQ)
Q: What is the difference between the -4 and -5 speed grades? The -5 speed grade offers faster timing (shorter propagation delays) than the -4 grade. The -4 grade is the more conservative option, typically consuming slightly less dynamic power and offering better timing margins in less demanding designs.
Q: Is the XC3S200-4PQG208C lead-free / RoHS compliant? Yes. The “G” in the package designation (PQG208) indicates the device uses a lead-free, RoHS-compliant package.
Q: Can I use Vivado to program this device? No. Xilinx Vivado does not support the Spartan-3 family. You must use Xilinx ISE Design Suite 14.7, which is available as a free download from the AMD/Xilinx website.
Q: What configuration PROM is compatible with the XC3S200? Xilinx XCF02S or XCF04S Platform Flash PROMs are commonly used for Master Serial configuration of the XC3S200. Third-party SPI Flash devices (e.g., Winbond W25Q series) are also widely supported via SPI Slave configuration mode.
Q: What is the maximum clock frequency for the XC3S200-4? The maximum system clock frequency depends heavily on the design implementation. For register-to-register paths, a well-optimized design can achieve system frequencies in the range of 100–200 MHz using the -4 speed grade with the Spartan-3 DCMs.
Summary
The XC3S200-4PQG208C is a proven, cost-effective FPGA solution from the Xilinx Spartan-3 family. With 200,000 system gates, 173 user I/O pins, 12 dedicated multipliers, 216 Kbits of block RAM, and four digital clock managers — all in a 208-pin PQFP package — this device provides an excellent balance of logic capacity, I/O density, and affordability for a wide range of embedded and digital design applications.
Its mature ecosystem, free ISE WebPACK toolchain support, and compatibility with industry-standard I/O levels make the XC3S200-4PQG208C a reliable choice for both new designs and legacy system maintenance.