| PartNumber | XC18V04VQ44I | XC18V04VQG44C | XC18V256PC20C |
| Description | Field-Programmable Gate Array | ||
| Manufacturer | Xilinx | Xilinx Inc. | Xilinx Inc. |
| Product Category | Memory - Configuration Proms for FPGA's | Memory - Configuration Proms for FPGA's | Memory - Configuration Proms for FPGAs |
| Series | - | - | - |
| Packaging | Tray | Tray | Tube |
| Package Case | 44-TQFP | 44-TQFP | 20-LCC (J-Lead) |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Voltage Supply | 3 V ~ 3.6 V | 3 V ~ 3.6 V | 3 V ~ 3.6 V |
| Supplier Device Package | 44-VQFP (10x10) | 44-VQFP (10x10) | 20-PLCC (9x9) |
| Memory Size | 4Mb | 4Mb | 256Kb |
| Programmable Type | In System Programmable | In System Programmable | In System Programmable |